Curved imaging plate chemical crystallography system

Rapid determination of 3D molecular structure of small molecules

R-AXIS RAPID II

A compact, fully integrated high-resolution, small molecule crystallography system, the Rigaku R-AXIS RAPID II is the latest member of the RAPID family of large-area curved imaging plate (IP) X-ray diffraction systems. The RAPID II combines every component needed for a high-performance X-ray diffraction system delivering no-compromise performance for applications ranging from applied crystallography to chemical crystallography. The flexible system works with wavelengths from Cr to Ag without compromising data quality. The extremely large aperture means that the full resolution range for any wavelength can be covered very easily. The R-AXIS RAPID is the system of choice for the most demanding applications, including charge-density work, complicated twins and studies on diffuse scattering. Other applications include micro-diffraction, measurement of weakly diffracting disordered materials, wide angle X-ray scattering (WAXS), stress and texture measurements, and general purpose powder diffraction.

Curved detector for maximum reciprocal space coverage

The RAPID II is so versatile that it can replace several instruments without compromising data quality. Its unique, curved large-area detector subtends a 2θ range of 204° at a single detector setting for maximum reciprocal space coverage. The large curved active area is advantageous because a massive solid angle of data is collected in a single exposure. While the wide dynamic range eliminates worrying about detector saturation, the curved-plate geometry of the RAPID II reduces oblique-incidence X-ray absorption effects seen with flat detectors of any kind.

Choice of X-ray sources, including dual wavelength

Inherent to the flexibility of this system is a choice of X-ray sources, ranging from a high-frequency 3 kW sealed tube, to a MicroMax-003 microfocus tube, to a 1.2 kW MicroMax™-007 HF microfocus rotating anode. Available optics range from a traditional graphite monochromator or high-performance SHINE™ optic to a VariMax™ confocal X-ray optic. Dual wavelength is available with the new MicroMax-007 HF DW or FR-E+ DW SuperBright™ optional sources: in this novel approach, two optics are housed in a single assembly, with either optic being selected by a simple rotation. In addition, the patented adjustable divergence feature is maintained for each optic.

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Features

  • No compromise molecular structure determination
  • Multiple and dual wavelengths available
    • Cu, Mo, Ag, etc.
  • Fast data collection
  • High dynamic range and low background noise
  • High-resolution charge density measurements
  • Measure weakly diffracting disordered materials
  • Powder diffraction
  • Micro-diffraction
  • Diffuse scattering

RAPID II specifications

Imaging plate (IP) and scanner:

  • Detector: Cylindrical IP with vertical translation axis
  • Radius: 127.4 mm
  • 2θ range: Tangential direction -60° to 144°
  • Active area: 460 mm x 256 mm
  • Pixel size: 100 μm x 100 μm, 100 μm x 150 μm, or 200 μm x 200 μm, user selectable
  • Number of IPs: 1
  • Readout method: High speed helical scan
  • Readout time: 51 sec
  • Erase time: 20 sec
  • Duty time (erase, readout, positioning): ca. 90 sec. (100 μm x 100 μm scan)
  • Dynamic range: 524,000:1
  • Sensitivity: 2 ADU/X-ray photon (Cu Kα)
  • Image size: 23.5 Mbytes in 100 μm x 100 μm readout mode

Goniometer (Partial-χ, 3-axis goniometer):

  • ω axis: -85° to 265° 0.002° /step
  • χ axis: -15° to 55° 0.0002° /step
  • φ axis: 360° 0.002° /step
  • Sphere of confusion: ≤ 20 μm
  • Goniometer head: IUCr arcless goniometer head, 49 mm

X-ray optics:
  • Monochromator: Flat graphite crystal, SHINE or VariMax™ optic (optional)
  • Collimator: 0.3 mm, 0.5 mm and 0.8 mm double pinhole
  • Collimator: 0.1 mm, 0.2 mm and 0.3 mm capillary collimator (optional)

Other specifications:
  • Camera: 1/3" camera for sample alignment and observation; 70X magnification color image displayed on host computer
  • X-ray generator: 3 kW sealed tube, ultraX 18 rotating anode: Cu, Mo or Ag MicroMax™-007 HF microfocus rotating anode: Cu or Mo
  • Computer: PC with Windows®
  • Software: CrystalClear™ automated measurement/processing software; Software for face indexing using CCD video camera; TwinSolve twinned crystal integration software (optional); Supported by HKL-2000®; AreaMax powder processing suite (optional);

RAPID II software

CrystalClear

CrystalClear is the data collection and analysis package designed for single crystal data. Based on Rigaku's easy-to-use flow bar user interface, CrystalClear walks the user through steps required to collect and prepare a data set for structure determination. Includes data collection, image display, indexing, space group determination, integration, scaling and absorption correction. Also included is Rigaku's TwinSolve, a powerful and flexible twin-handling package to index and integrate data from twinned samples.

Optional software

Optional software packages include 2DP, 3D Explore and PDXL.

2DP is a general purpose 2D data processing software package offering 2D image processing and integration for powder and other polycrystalline materials.

3D Explore is a state-of-the-art display package for reciprocal space mapping and pole figure analysis.

The PDXL powder diffraction suite offers modules for basic powder diffraction analysis, automated search match, Rietveld refinement, powder pattern simulations, crystallite size determination, and percent crystallinity.

Representative Publications Using the RAPID

Author:



Alan Pinkerton publications

  • Structure and Bonding in β-HMX — Characterization of a Trans-annular N ··· N Interaction.
    Zhurova, E.A.; Zhurov, V.V.; and Pinkerton, A.A., J. Am. Chem. Soc., 2007, 129, 13887-13893.
  • Binding of Genistein to the Estrogen Receptor Based on an Experimental Electron Density Study.
    Yearley, E.J.; Zhurova, E.A.; Zhurov, V.V.; and Pinkerton, A.A., J. Am. Chem. Soc., 2007, 129, 15013-15021.
  • Optimization and Evaluation of Data Quality for Charge Density Studies.
    Zhurov, V.V.; Zhurov, E.A.; and Pinkerton, A.A., J. Appl. Cryst., 2008, 41, 340-349.
  • Variable Temperature Neutron Diffraction and X-ray Charge Density Studies of Tetraacetylethane.
    Piccoli, P.M.B.; Koetzle, T.F.; Schultz, A.J.; Zhurova, E.A.; Stare, J.; Pinkerton, A.A.; Eckert, J.; and Hadzi, D., J. Phys. Chem. B, 2008, 112, 6667-6677.
  • Experimental Electron Density Studies of Non-Steroidal Synthetic Estrogens: Diethylstilbestrol and Dienestrol
    Yearley, E.J.; Zhurova, E.A.; Zhurov, V.V, and Pinkerton, A.A.; J. Mol. Struc., 2008, 890, 240-248.
  • Chemical Bonding and Structure-Reactivity Correlation in Meldrum’s Acid: A Combined Experimental and Theoretical Electron Density Study.
    Chopra, D.; Zhurov, V.V.; Zhurova E.A.; and Pinkerton, A.A.; J. Org. Chem., 2009, 74, 2389-2395.
  • 17α-Estradiol •½ H₂O: Super-Structural Ordering, Electronic Properties, Chemical Bonding and Biological Activity in a Comparison with Other Estrogens
    Zhurova, E.A.; Zhurov, V.V.; Chopra, D.; Stash, A.I.; and Pinkerton, A.A.; J. Am. Chem. Soc., 2009, 131, 17260-17269.
  • Importance of the Consideration of Anharmonic Motion in Charge Density Studies: A Comparison of Variable Temperature Studies on Two Explosives, RDX and HMX
    Zhurov, V.V.; Zhurova, E.A.; Stash, A.I. and Pinkerton, A.A.; Acta Cryst. 2011, A67, 160-173.
  • Chemical Bonding in Cesium Uranyl Chloride Based on the Experimental Electron Density Distribution.
    Zhurov, V.V.; Zhurova, E.A.; and Pinkerton; A.A.; Inorg. Chem., 2011, 50, 6330-6333.
  • Characterization of Bonding in Cesium Uranyl Chloride: Topological Analysis of the Experimental Charge Density.
    Zhurov, V.V.; Zhurova, E.A.; Stash, A.I.; and Pinkerton, A.A.; J. Phys. Chem. A, 2011, 115, 13016-13023 (invited paper).
  • Charge Transfer Vibronic Transitions in Uranyl Tetrachloride Compounds.
    Liu, G.K.; Deifel, N.P.; Zhurov, V.V.; Pinkerton, A.A.; and Cahill, C.L.; J. Phys. Chem. A, 2012, 116, 855–864.



Geoff Jameson publications

  • Ainscough EW, Brodie AM, Davidson RJ, Edwards PJB, Jameson GB, Otter CA, Kirk SM. 2012. Zn, Cd and Hg complexes of a pyridyloxy-substituted cyclotriphosphazene: syntheses, structures and fluxional behaviour. Inorganic Chemistry, in press.
  • Davidson RJ, Ainscough EW, Brodie AM, Jameson GB, Waterland MR, Allcock HR, Hindenlang MD, Moubaraki B, Murray KS, Gordon KC, Horvath R, Jameson GNL. 2012. Towards an iron(II) spin-crossover grafted phosphazene polymer. Inorganic Chemistry, in press.
  • Islah-u-din, Chong SV, Telfer SG, Kennedy J, Jameson GB, Waterland MR, Tallon JL. 2012. Influence of doping on hybrid organic-inorganic WO3(4,4׳-bipyridyl)0.5 materials. Journal of Physical Chemistry C 116: 3787-3792.
  • Deshpande RK, Jameson GB, Telfer SG. 2012. Photolabile protecting groups prevent interpenetration and mask functionality in metal-organic frameworks. Chemical Communications 48: 1574-1576.
  • Kilpin KJ, Gower ML, Telfer SG, Jameson GB, Crowley JD. 2011. Towards the self-assembly of metal-organic nanotubes using metal-metal and π-stacking interactions: Bis(pyridylethynyl) silver(I) metallomacrocycles and coordination polymers. Inorganic Chemistry 50: 1123-1134,.
  • Kilpin KJ, Horvath R, Jameson GB, Telfer SG, Gordon KC, Crowley JD. 2010. Pyridyl gold(I) alkynyls: A synthetic, structural, spectroscopic and computational study. Organometallics 29: 6186-6195.
  • Wikaira JL, Li L, Butcher RJ, Fitchett CM, Jameson GB, Landee CP, Telfer SG, Turnbull MM. 2010. Transition metal complexes of 2-amino-3-chloro-5-trifluoromethylpyridine: Syntheses, structures and magnetic properties of [(TMCAPH)₂CuBr₄] and [(TMCAPH)₂CuCl₄]. Journal of Coordination Chemistry 63: 2949-2964.
  • U-Din I, Fox MR, Martin H, Gainsford GJ, Kennedy J, Markwitz A, Telfer SG, Jameson GB, Tallon JL. 2010. Synthesis and structure of Na+-intercalated WO3(4,4'-bipyridyl)0.5. Chemical Communications 46: 4261-4263.
  • Wenzel M, Jameson GB, Ferguson LA, Knapp QW, Forgan RS, White FJ, Parsons S, Tasker PA, Plieger PG. 2009. Anion-induced contraction of helical receptors. Chemical Communications, 3606-3608.
  • Gainsford GJ, Kemmitt T, Jameson GB, Telfer SG. 2009. The first example of a mixed alkoxide hydride of boron: sodium boron isopropoxide trihydride. Acta Crystallographica Section C, Crystal Structure Communications C65: m180–m181.



Shane Telfer publications

  • Abdalrahman M, Landee CP, Telfer SG, Turnbull MM, Wikaira JL. 2012. Copper(II) halide coordination complexes and salts of 3-halo-2-methylpyridines: Synthesis, structure and magnetism. Inorganica Chimica Acta 389: 66-76.
  • Nielson AJ, Telfer SG, Waters JM. 2012. Reactions of {TiO(salen)}n [salen = N,N ''-bis(salicylidene)ethylenediamine] in aromatic aldehydes and ketones.
    Polyhedron 33: 97-106.
  • Nicholson BK, Clark CJ, Telfer SG, Groutso T. 2012. Isopolyoxometalates derived from arylstibonic acids with "reverse-Keggin ion" structures based on [M(RSb)₁₂O₂₈] cores, M = Co(II) or Zn(II). Dalton Transactions 41(33): 9964-9970.
  • McLean TM, Moody JL, Waterland MR, Telfer SG. 2012. Luminescent rhenium(I)-dipyrrinato complexes. Inorganic Chemistry 51(1): 446-455.
  • Lun DJ, Waterhouse GI, Telfer SG. 2011. A general thermolabile protecting group strategy for organocatalytic metal-organic frameworks.
    Journal of the American Chemical Society 133(15): 5806-5809.
  • Nicholson BK, Clark CJ, Wright CE, Telfer SG, Groutso T. 2011. New Sb-12 and Sb-14 polyoxometalate frameworks derived from arylstibonic acids: [LiH₃(p-MeC₆H₄Sb)₁₂O₂₈]₄- and [BaH₁₀(p-MeC₆H₄Sb)₁₄O₃₄]. Organometallics 30(24): 6612-6616.
  • Ershad S, Saghatrfroush L, Khodmarz J, Telfer SG. 2011. Cyclic voltammetric investigations of newly synthesized Cd(II) 4 '-(4-methylphenyl)-2,2 ':6 ',2 ''-terpyridyl complex in DMF solution. International Journal of Electrochemical Science 6: 3997-4005.
  • Saghatforoush LA, Telfer SG, Chalabian F, Mehdizadeh R, Golbedaghi R, Shahverdizadeh GH. 2011. Cadmium(II) complexes of 4 '-tolyl-2,2 ':6 ',2 ''-terpyridine: synthesis, structures, and antibacterial activities. Journal of Coordination Chemistry 64(12): 2186-2201.
  • Deshpande RK, Minnaar JL, Telfer SG. 2010. Thermolabile groups in metal-organic frameworks: suppression of network interpenetration, post-synthetic cavity expansion, and protection of reactive functional groups. Angewandte Chemie International Edition English 49(27): 4598-4602.
  • Hall JD, McLean TM, Smalley SJ, Waterland MR, Telfer SG. 2010. Chromophoric dipyrrin complexes capable of binding to TiO₂: synthesis, structure and spectroscopy. Dalton Transactions (2): 437-445



Massey University, general users - inorganic structures

  • Shaffer KJ, McLean TM, Waterland MR, Wenzel M, Plieger PG. 2012. Structural characterisation of difluoro-boron chelates of quino[7,8-h]quinoline.
    Inorganica Chimica Acta 380: 278-283.
  • Wenzel, Knapp QW, Plieger PG.2011. A bis-salicylaldoximato-copper(II) receptor for selective sulfate uptake. Chemical Communications: 499-501.
  • Stevens JR, Plieger PG. 2011. Anion-driven conformation control and enhanced sulfate binding utilising aryl linked salicylaldoxime dicopper helicates.
    Dalton Transactions 40(45): 12235-12241.
  • Wenzel M, Wichmann K, Gloe K, Buschmann HJ, Otho K, Schroder M, Blake AJ, Wilson C, Mills AM, Lindoy LF, Plieger, PG. 2010. Interaction of tripodal Schiff-base ligands with silver(I): structural and solution studies. CRYSTENGCOMM 12(12): 4176-4183.
  • Wenzel M, Forgan RS, Faure A, Mason K, Tasker PA, Piligkos S, Brechin EK, Plieger PG. 2009. A new polynuclear coordination type for (salicylaldoxime)copper(II) complexes: structure and magnetic properties of an (oxime)Cu6 cluster. European Journal of Inorganic Chemistry (31): 4613-4617.



Stan Cameron, Dalhousie - inorganic and organic structures

  • T. Lundrigan, A.E.G. Baker, L.E. Longobardi, T.E. Wood, D.A.
    Smithen, S.M. Crawford, T.S. Cameron & A. Thompson (2012) An Improved Method for the Synthesis of F-BODIPYs from Dipyrrins and Bis(dipyrrin)s.
    Org Lett 14, 2158-2161. DOI: 10.1021/ol300681w
  • S.M. Forget, D. Bhattasali, V.C. Hart, T.S. Cameron, R.T. Syvitski & D.L. Jakeman (2012) Synthesis and enzymatic evaluation of ketose phosphonates: the interplay between mutarotation, monofluorination and acidity. Chem Sci 3, 1866-1878. DOI: 10.1039/c2sc01077a
  • D.A. Smithen, A.E.G. Baker, M. Offman, S.M. Crawford, T.S. Cameron & A. Thompson (2012)
    Use of F-BODIPYs as a protection strategy for dipyrrins: optimization BF2 removal. J Org Chem 77, 3439-3453. DOI:10.1021/jo3002003
  • T. Lundrigan, S.M. Crawford, T.S. Cameron & A. Thompson (2012)
    Cl-BODIPYs: a BODIPY class enabling facile B-substitution. Chem Comm 48, 1003-1005. DOI: 10.1039/c1cc16351e
  • F. Gao, C.T.M. Stamp, P.D. Thornton., T.S. Cameron, L.E. Doyle, D.O. Miller & D.J. Burnell (2012)
    Selective formation of angular tricyclic compounds by ruthenium-mediated ring-rearrangement metathesis. Chem Comm 48, 233-235. DOI: 10.1039/c1cc15452d
  • R. Vadavi, E.D. Conrad, D.I. Arbuckle, T.S. Cameron, E. Essoun & M.A.S. Aquino, (2011)
    Chiral Induction via the disassembly of diruthenium(II,III) tetraacetate by chiral diphosphines. Inorg Chem 50, 11862-11864. DOI: 10.1021/ic202013m
  • D.A. Smithen, T.S Cameron & A. Thompson (2011)
    One-pot synthesis of asymmetric annulated bis(pyrrole)s. Org Lett 13, 5846-5849. DOI:10.1021/ol202457n
  • S.M. Crawford, , A. Al-Sheikh Ali, T.S. Cameron & A. Thompson (2011)
    Synthesis and characterization of fluorescent pyrrolyldipyrrinato Sn(IV) complexes. Inorg Chem 50, 8207-8213. DOI: 10.1021/ic200731t
  • P.D. Thornton, T.S. Cameron and D.J. Burnell (2011)
    Vinylogous anionic processes in the formation and interconversion of tetracyclic ring systems. Org Biomol Chem 9, 3447-3456. DOI: 10.1039/c0ob01152e
  • H. Al-Mughaid, K.N. Robertson, U. Werner-Zwanziger, M.D. Lumsden, T.S. Cameron & T.B. Grindley (2011)
    2-Propynyl 2,3,4,6-tetra-O-acetyl-a-D-mannopyranoside. Acta Cryst C67, o60-o63. DOI: 10.1107/S010827011005225X
  • M.I. Uddin, S.Thirumalairajan, S.M. Crawford, T.S. Cameron & A. Thompson (2010)
    Improved synthetic route to C-ring ester-functionalized prodigiosenes. Synlett 2561-2564. DOI: 10.1055/s-0030-1258769
  • H. Liang, M. MacKay, T.B. Grindley, K.N. Robertson & T.S. Cameron (2010)
    Configurations and conformations of glycosyl sulfoxides. Can J Chem 88, 1154-1174. DOI: 10.1139/V10-091
  • T.S. Cameron, A. Decken, F. Grein; C. Knapp, J. Passmore, J.M. Rautiainen, K.V. Shuvaev, R.C. Thompson & D.J. Wood (2010)
    Preparation and characterization of (CNSSS)₂(A)₂ (A = AsF6-, SbF6-, Sb2F11-) containing the O₂ -like 5,5'-Bis(1,2,3,4-trithiazolium) dication: The second example of a simple nonsterically hindered main-group diradical that retains its paramagnetism in the solid state. Inorg Chem 49, 7861-7879. DOI: 10.1021/ic100760t
  • A. Al-Sheikh Ali, J.Cipot-Wechsler, S.M. Crawford, O. Selim, R.L. Stoddard, T.S. Cameron & A. Thompson (2010)
    The first series of alkali dipyrrinato complexes. Can J Chem 88, 725-735. DOI: 10.1139/V09-180
  • T.S. Cameron, G.B. Nikiforov, J. Passmore & J.M. Rautiainen (2010)
    Preparation, structure and analysis of the bonding in the molecular entity (OSO)₂Li{[AlF(ORF)₃]Li[Al(ORF)₄]} (RF = C(CF₃)₃). Dalton Trans 39, 2587-2596. DOI: 10.1039/b923291e
  • C. Mukherjee, E.D. MacLean, T.S. Cameron & A. Jha (2010)
    Enzyme-assisted kinetic resolution of novel 2-naphthol Mannich bases. J Molecular Catalysis B: Enzymatic 62, 46-53. DOI:10.1016/j.molcatb.2009.09.001
  • J.J. Weigand, N. Burford, R.J. Davidson, T.S. Cameron & P. Seelheim (2009)
    New synthetic procedures to catena-phosphorus cations: preparation and dissociation of the first cyclo-phosphino-halophosphonium salts. J Am Chem Soc 131, 17943-17953. DOI: 10.1021/ja907693f
  • V.M. Marx, T.S. Cameron & D.J. Burnell (2009)
    Formation of halogenated cyclopent-2-enone derivatives by interrupted Nazarov cyclizations. Tetrahedron Lett 50, 7213-7216. DOI:10.1016/j.tetlet.2009.10.052
  • A. Al-Sheikh Ali, J. Cipot-Wechsler, T.S. Cameron & A. Thompson (2009)
    Formation of vinylic dipyrroles by the deprotonation of meso-alkyl and meso-benzyl dipyrrin HCl salts. J Org Chem 74, 2866-2869. DOI:10.1021/jo900064y
  • P.-J.J. Huang, T.S. Cameron & A. Jha (2009)
    Novel synthesis of 2,2-dialkyl-3-dialkylamino-2,3-dihydro-1H-naphtho[2,1-b]pyrans. Tetrahedron Lett 50, 51-54. DOI: 10.1016/j.tetlet.2008.10.083
  • D.J. Wolstenholme, J.J. Weigand, E.M. Cameron & T.S. Cameron (2009)
    Understanding the role structural changes play in the formation of strong and weak hydrogen bonds in tetramethylalkyldiammonium dithiocyanate salts. Crystal Growth & Design, 9, 282-290. DOI: 10.1021/cg800452w
  • P.-J.J. Huang, D. Youssef, T.S. Cameron & A. Jha (2008)
    Microwave-assisted synthesis of novel 2-naphthol bis-Mannich bases. ARKIVOC (xvi) 165-177.
  • D.J. Wolstenholme, J.J. Weigand, E.M. Cameron & T.S. Cameron (2008)
    The progression of strong and weak hydrogen bonds in a series of ethylenediammonium dithiocyanate derivatives - a new bonding protocol for macromolecules? Phys Chem Chem Phys 10, 3569-3577. DOI: 10.1039/b800108a
  • D.J. Wolstenholme, J.J. Weigand, R.J. Davidson, J.K. Pearson & T.S. Cameron (2008)
    Understanding the electronic structure, reactivity, and hydrogen bonding for a 1,2-diphosphonium dication. J Phys Chem A 112, 3424-3431. DOI: 10.1021/jp710527z
  • A.H. Murray, Z. Yue, A.I. Wallbank, T.S. Cameron, R. Vadavi, B.J. MacLean & M.A.S. Aquino (2008)
    Synthesis, structure and electrochemistry of mononuclear and dinuclear ruthenium-thiophenecarboxylate complexes. Polyhedron 27, 1270-1279. DOI:
    10.1016/j.poly.2007.12.015
  • J. Cipot-Wechsler, A. Al-Sheikh Ali, E.E. Chapman, T.S. Cameron & A. Thompson (2007)
    Synthesis and reactivity of a dipyrrinatolithium complex. Inorg Chem 46, 10947-10949. DOI: 10.1021/ic701369h
  • R.J. Davidson, J.J. Weigand, N.Burford, T.S. Cameron, A. Decken & U. Werner-Zwanziger (2007)
    Bifunctional diphosphorus Lewis acids from cyclodiphosphadiazanes. Chem Commun, 4671-4673. DOI: 10.1039/b710853b
  • A. Decken, T.S. Cameron, J. Passmore, J.M. Rautiainen, R.W. Reed, K.V. Shuvaev & L.K. Thompson (2007)
    Characterization of the diradical NSNSC-CNSSN and [NSNSC-CNSSN][MF₆]n (n = 1, 2). The first observation of an excited triplet state in dimers of 7p-CNSSN radicals. Inorg Chem 46, 7436-7457. DOI: 10.1021/ic700638n
  • D. Youssef, C.E. Nichols, T.S. Cameron, J. Balzarini, E. De Clercq & A. Jha (2007)
    Design, synthesis and cytostatic activity of novel cyclic curcumin analogues. Bioorg & Med Chem Lett 17, 5624-5629. DOI:10.1016/j.bmcl.2007.07.079 CCDC 650883
  • D.J. Wolstenholme & T.S. Cameron (2007)
    A comparison of the energetic and topological properties of weak interactions in molecular organic crystals. Can J Chem 85, 576-585. DOI: 10.1139/V07-090
  • A. Al-Sheikh Ali, R.E. Benson, S. Blumentritt, T.S. Cameron, A. Linden, D. Wolstenholme & A. Thompson (2007)
    Asymmetric synthesis of mono- and dinuclear bis(dipyrrinato) complexes. J Org Chem 72, 4947-4952. DOI: 10.1021/jo070569j
  • D.J. Wolstenholme, C.F. Matta & T.S. Cameron (2007)
    Experimental and theoretical electron density study of a highly twisted polycyclic aromatic hydrocarbon: 4-methyl-[4]helicene. J Phys Chem A 111, 8803-8813. DOI:10.1021/jp071002+
  • P. Munshi, E. Cameron, T.N. Guru Row, J.D. Ferrara & T.S. Cameron (2007)
    Investigation of inter-ion interactions in N,N,N',N'-tetramethylethylenediammonium dithiocyanate via experimental and theoretical charge density studies. J Phys Chem A 111, 7888-7897. DOI:
    10.1021/jp068554x
  • T.J. Burchell, T.S. Cameron, D.H. Macartney, L.K. Thompson & M.A.S. Aquino (2007)
    Kinetics and magnetism of phosphane diadducts of diruthenium(II,III) tetraacetate. Eur J Inorg Chem 2007, 4021-4027. DOI:10.1002/ejic.200700400
  • A.P. White, K.N. Robertson, T.S. Cameron, B.V. Liengme, D.B. Leznoff, S. Trudel & M.A.S. Aquino (2007)
    Synthesis and characterization of [M(DMSO)6][SnCl6] complexes (M = Fe2+, Co2+, and Ni2+) - an old mystery solved. Can J Chem 85, 372-378. DOI: 10.1139/X07-042
  • T.S. Cameron, A. Decken, M. Gabriel, C. Knapp & J. Passmore (2007)
    Investigations of the mono- and dicycloaddition reactions of [SNS][MF₆] (M = As, Sb) with the dinitriles NCC(O)CN and NCC(Cl)₂CN - energetics and the preference for [SNS]+ dicycloaddition products in solution and solid state. Can J Chem 85, 96-104. DOI: 10.1139/V06-190
  • J.J. Weigand, R.J. Davidson, T.S. Cameron & N. Burford (2007)
    A second polymorph of bis(dimethylphosphino)dimethylphosphonium trifluoromethanesulfonate. Acta Cryst C 63, o193-o195. DOI:10.1107/S0108270107006671
  • D.J. Wolstenholme, K.N. Robertson, E. Mesa Gonzalez & T.S. Cameron (2006)
    A topological investigation of the non-linear optical compound: iodoform octasulphur. J Phys Chem A 110, 12636-12643. DOI:10.1021/jp064181o
  • D. Chopra, T.S. Cameron, J.D. Ferrara & T.N. Guru Row (2006)
    Pointers towards the occurrence of C-FF-C interaction: experimental charge density analysis of 1-(4-fluorophenyl)-3,6,6-trimethyl-2-phenyl-1,5,6,7-tetrahydro-4H-indol-4-one
    and 1-(4-fluorophenyl)-6-methoxy-2-phenyl-1,2,3,4-tetrahydroisoquinoline. J Phys Chem A 110, 10465-10477. DOI: 10.1021/jp0625309
  • D.J. Wolstenholme & T.S. Cameron (2006)
    Comparative study of weak interactions in molecular crystals: H - H bonds vs hydrogen bonds. J Phys Chem A 110, 8970-8978. DOI: 10.1021/jp061205i
  • T.S. Cameron, A. Decken, R.M. Kowalczyk, E.J.L. McInnes, J. Passmore, J.M. Rawson, K.V. Shuvaev & L.K. Thompson (2006)
    Characterisation of the thermally accessible spin triplet state in dimers of the 7p ClCNSSS+ in the solid state. Chem Commun 21, 2277-2279. DOI: 10.1039/b602843h
  • D. Wolstenholme, M.A.S. Aquino, T.S. Cameron, J.D. Ferrara & K.N. Robertson (2006)
    A topological analysis of the interion interactions of tetraphenylphosphonium squarate. Can J Chem 84, 804-811. DOI:10.1139/V06-058
  • A. Jha, N.K. Paul, S. Trikha & T.S. Cameron (2006)
    Novel synthesis of 2-naphthol Mannich bases and their NMR behaviour. Can J Chem 84, 843-853. DOI: 10.1139/V06-081



Phil Fanwick, Purdue - inorganic structures

  • Crystallographic Evidence of a Base-Free Uranium(IV) Terminal Oxo Species
    Steven J. Kraft, Justin Walensky, Phillip E. Fanwick, Michael B. Hall and Suzanne C. Bart, Inorg. Chem., 2010, 49 (17), pp 7620~7622
  • Diruthenium Compounds Bearing Equatorial Fc-containing Ligands: Synthesis and Electronic Structure
    Darryl A. Boyd, Zhi Cao, You Song, Tian-Wei Wang, Phillip E. Fanwick, Robert J. Crutchley, and Tong Ren, Inorg. Chem., 2010, 49 (24), pp 11525~11531
  • Synthesis and Characterization of a Uranium(III) Complex Containing a Redox-Active 2,2~-Bipyridine Ligand
    Steven J. Kraft, Phillip E. Fanwick and Suzanne C. Bart, Inorg. Chem., 2010, 49 (3), pp 1103~1110
  • Synthesis, Characterization, and Multielectron Reduction Chemistry of Uranium Supported by Redox-Active α-Diimine Ligands
    Steven J. Kraft, Ursula J. Williams, Scott R. Daly, Eric J. Schelter, Stosh A. Kozimor, Kevin S. Boland, James M. Kikkawa, William P. Forrest, Christin N. Christensen, Daniel E. Schwarz, Phillip E. Fanwick, David L. Clark, Steve D. Conradson, and Suzanne C. Bart, Inorg. Chem., 2011, 50 (20), pp 9838~9848
  • New Iron(III) Bis(acetylide) Compounds Based on the Iron Cyclam Motif
    Zhi Cao, William P. Forrest, Yang Gao, Phillip E. Fanwick, Yang Zhang, and Tong Ren, Inorg. Chem., 2011, 50 (16), pp 7364~7366
  • Diruthenium(III,III) Bis(alkynyl) Compounds with Donor/Acceptor-Substituted geminal-Diethynylethene Ligands
    William P. Forrest, Zhi Cao, Kerry M. Hassell, Boone M. Prentice, Phillip E. Fanwick, and Tong Ren, Inorg. Chem., 2012, 51 (5), pp 3261~3269
  • Characterization and Anisotropic Lattice Expansion/Contraction of Polymorphs of Tenofovir Disoproxil Fumarate
    Eun Hee Lee, Daniel T. Smith, Phillip E. Fanwick and Stephen R. Byrn, Cryst. Growth Des., 2010, 10 (5), pp 2314~2322
  • Diruthenium Phenylacetylide Complexes Bearing para-/meta-Amino Phenyl Substituents
    Steven P. Cummings, Zhi Cao, Carl W. Liskey, Alex R. Geanes, Phillip E. Fanwick, Kerry M. Hassell and Tong Ren, Organometallics, 2010, 29 (12), pp 2783~2788
  • Bimetallic Organometallic Compounds of ~-gem-Diethynylethene (gem-DEE) Ligands: trans-Ru₂(DMBA)₄(gem-DEE)₂
    William P. Forrest, Zhi Cao, Phillip E. Fanwick, Kerry M. Hassell, and Tong Ren, Organometallics, 2011, 30 (8), pp 2075~2078
  • Diruthenium(II,III) tetramidates as a new class of oxygenation catalysts
    Leslie Villalobos, Zhi Cao, Phillip E. Fanwick and Tong Ren, Dalton Trans., 2012, 41, 644-650
  • Reductive heterocoupling mediated by Cp*2U(2,2'-bpy)
    Adil Mohammad, Dennis P. Cladis, William P. Forrest, Phillip E. Fanwick and Suzanne C. Bart, Chem. Commun., 2012, 48, 1671-1673
  • Highly diastereoselective synthesis of modified nucleosides via an asymmetric multicomponent reaction
    Arun K. Ghosh and Jorden Kass, Chem. Commun., 2010, 46, 1218-122
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