All Stories

  1. Hydrogen bonding and π–π interactions in the cocrystal salt [Fe(bpe)2(H2O)4](TCEP)2·2(bpe) [bpe is trans-1,2-bis(pyridin-4-yl)ethene and TCEP is 1,1,3,3-tetracyano-2-ethoxypropenide]

    Article • Acta Crystallographica Section C Structural Chemistry, February 2019, International Union of Crystallography

    David K Geiger

  2. Hydrogen bonding in two benzene-1,2-diaminium pyridine-2-carboxylate salts and a cocrystal of benzene-1,2-diamine and benzoic acid

    Article • Acta Crystallographica Section C Structural Chemistry, February 2019, International Union of Crystallography

    David K Geiger

  3. Intermolecular interactions in a phenol-substituted benzimidazole

    Article • Acta Crystallographica Section E Crystallographic Communications, January 2019, International Union of Crystallography

    David K Geiger

  4. Charge-assisted hydrogen bonding in three diaminobenzene salts

    Article • Acta Crystallographica Section C Structural Chemistry, November 2018, International Union of Crystallography

    David K Geiger

  5. An exploration of O—H...O and C—H...π interactions in a long-chain-ester-substituted phenylphenol: methyl 10-[4-(4-hydroxyphenyl)phenoxy]decanoate

    Article • Acta Crystallographica Section E Crystallographic Communications, April 2018, International Union of Crystallography

    David K Geiger

  6. Structural characterization of two solvates of a luminescent copper(II) bis(pyridine)-substituted benzimidazole complex

    Article • Acta Crystallographica Section E Crystallographic Communications, October 2017, International Union of Crystallography

    David K Geiger

  7. Structural characterization, gelation ability, and energy-framework analysis of two bis(long-chain ester)-substituted 4,4′-biphenyl compounds

    Article • Acta Crystallographica Section C Structural Chemistry, September 2017, International Union of Crystallography

    David K Geiger

  8. A luminescent bis(pyridyl)-substituted benzimidazole platinum(II) complex exhibiting an intermolecular anagostic interaction

    Article • Acta Crystallographica Section C Structural Chemistry, August 2017, International Union of Crystallography

    David K Geiger

  9. Synthesis and characterization of a novel long-alkyl-chain ester-substituted benzimidazole gelator and its octan-1-ol solvate

    Article • Acta Crystallographica Section C Structural Chemistry, March 2017, International Union of Crystallography

    David K Geiger

  10. Structural characterization of two tetrachloridozincate salts of 4-carboxy-1H-imidazol-3-ium: a salt hydrate and a co-crystal salt hydrate

    Article • Acta Crystallographica Section E Crystallographic Communications, January 2017, International Union of Crystallography

    David K Geiger

  11. Two cadmium coordination polymers with bridging acetate and phenylenediamine ligands that exhibit two-dimensional layered structures

    Article • Acta Crystallographica Section E Crystallographic Communications, November 2016, International Union of Crystallography

    David K Geiger

  12. Conformational differences and intermolecular C—H...N interactions in three polymorphs of a bis(pyridinyl)-substituted benzimidazole

    Article • Acta Crystallographica Section C Structural Chemistry, October 2016, International Union of Crystallography

    David K Geiger

  13. Structural characterization of two benzene-1,2-diamine complexes of zinc chloride: a molecular compound and a co-crystal salt

    Article • Acta Crystallographica Section E Crystallographic Communications, June 2016, International Union of Crystallography

    David K Geiger

  14. Structural and spectroscopic characterization of two new blue luminescent pyridylbenzimidazole zinc(II) complexes

    Article • Acta Crystallographica Section C Structural Chemistry, May 2016, International Union of Crystallography

    David K Geiger

  15. Multiple N—H...NC, C—H...NC and nitrile...π interactions in 4,4′-bipyridine-1,1′-diium bis(1,1,3,3-tetracyano-2-ethoxypropenide): structure determination and DFT calculations of anion...π cation interaction energies

    Article • Acta Crystallographica Section C Structural Chemistry, July 2015, International Union of Crystallography

    David K Geiger, Dr Zouaoui SETIFI

  16. Crystal structures of three lead(II) acetate-bridged diaminobenzene coordination polymers

    Article • Acta Crystallographica Section E Structure Reports Online, November 2014, International Union of Crystallography

    David K Geiger

  17. Structure determination of three furan-substituted benzimidazoles and calculation of π–π and C—H...π interaction energies

    Article • Acta Crystallographica Section C Structural Chemistry, November 2014, International Union of Crystallography

    David K Geiger

  18. Hydrogen bonding in 4-nitrobenzene-1,2-diamine and two hydrohalide salts

    Article • Acta Crystallographica Section C Structural Chemistry, June 2014, International Union of Crystallography

    David K Geiger

  19. Poly[[tris(μ2-acetato-κ2O:O′)(4-chlorobenzene-1,2-diamine-κN)(μ3-hydroxido)dizinc] ethanol monosolvate]

    Article • Acta Crystallographica Section E Structure Reports Online, June 2014, International Union of Crystallography

    David K Geiger

  20. 5,6-Dimethyl-2-(5-methylthiophen-2-yl)-1-[(5-methylthiophen-2-yl)methyl]-1H-benzimidazole

    Article • Acta Crystallographica Section E Structure Reports Online, March 2014, International Union of Crystallography

    David K Geiger

  21. 4-Bromo-2-(5-bromothiophen-2-yl)-1-[(5-bromothiophen-2-yl)methyl]-5,6-dimethyl-1H-benzimidazole

    Article • Acta Crystallographica Section E Structure Reports Online, March 2014, International Union of Crystallography

    David K Geiger

  22. 5,6-Dimethyl-2-(pyridin-2-yl)-1-[(pyridin-2-yl)methyl]-1H-benzimidazole

    Article • Acta Crystallographica Section E Structure Reports Online, February 2014, International Union of Crystallography

    David K Geiger

  23. 5-Chloro-2-(thiophen-2-yl)-1-(thiophen-2-ylmethyl)-1H-benzimidazole–6-chloro-2-(thiophen-2-yl)-1-(thiophen-2-ylmethyl)-1H-benzimidazole (0.94/0.06)

    Article • Acta Crystallographica Section E Structure Reports Online, September 2013, International Union of Crystallography

    David K Geiger

  24. Thiophene-2-carbaldehyde azine

    Article • Acta Crystallographica Section E Structure Reports Online, May 2013, International Union of Crystallography

    David K Geiger

  25. 2-(Pyridin-4-yl)-1H-benzimidazole

    Article • Acta Crystallographica Section E Structure Reports Online, May 2013, International Union of Crystallography

    David K Geiger

  26. 6-Chloro-2-(thiophen-2-yl)-1-[(thiophen-2-yl)methyl]-1H-benzimidazole

    Article • Acta Crystallographica Section E Structure Reports Online, April 2013, International Union of Crystallography

    David K Geiger

  27. An orthorhombic polymorph of 3,4-diaminobenzonitrile

    Article • Acta Crystallographica Section E Structure Reports Online, April 2013, International Union of Crystallography

    David K Geiger

  28. 3,4-Diaminobenzonitrile

    Article • Acta Crystallographica Section E Structure Reports Online, February 2013, International Union of Crystallography

    David K Geiger

  29. 5-Bromo-2-(thiophen-2-yl)-1-(thiophen-2-ylmethyl)-1H-benzimidazole

    Article • Acta Crystallographica Section E Structure Reports Online, October 2012, International Union of Crystallography

    David K Geiger

  30. 2-(Furan-2-yl)-1,3-bis(furan-2-ylmethyl)-1H-benzimidazol-3-ium chloride monohydrate

    Article • Acta Crystallographica Section E Structure Reports Online, September 2012, International Union of Crystallography

    David K Geiger

  31. 2-Amino-5-nitro-N-[(E)-thiophen-2-ylmethylidene]aniline

    Article • Acta Crystallographica Section E Structure Reports Online, September 2012, International Union of Crystallography

    David K Geiger

  32. Bis(acetato-κO)bis(4,5-dimethylbenzene-1,2-diamine-κN)zinc

    Article • Acta Crystallographica Section E Structure Reports Online, July 2012, International Union of Crystallography

    David K Geiger

  33. 2-(Thiophen-2-yl)-1-(thiophen-2-ylmethyl)-1H-benzimidazole

    Article • Acta Crystallographica Section E Structure Reports Online, January 2012, International Union of Crystallography

    David K Geiger

  34. Synthesis, Photophysical Characterization, and Gelation Studies of a Stibene–Cholesterol Derivative. An Advanced Physical Organic Chemistry Laboratory

    Article • Journal of Chemical Education, January 2006, American Chemical Society (ACS)

    David K Geiger

  35. Structure and Bonding in Group 14 Congeners of Ethene: DFT Calculations in the Inorganic Chemistry Laboratory

    Article • Journal of Chemical Education, January 2005, American Chemical Society (ACS)

    David K Geiger

  36. ChemInform Abstract: Platinum Diimine Complexes: Towards a Molecular Photochemical Device

    Article • ChemInform, December 2000, Wiley

    David K Geiger

  37. Platinum Diimine Bis(acetylide) Complexes:  Synthesis, Characterization, and Luminescence Properties

    Article • Inorganic Chemistry, January 2000, American Chemical Society (ACS)

    David K Geiger

  38. Excited-State Self-Quenching Reactions of Square Planar Platinum(II) Diimine Complexes in Room-Temperature Fluid Solution

    Article • Inorganic Chemistry, June 1999, American Chemical Society (ACS)

    David K Geiger

  39. ChemInform Abstract: Chromium 1996

    Article • ChemInform, December 1998, Wiley

    David K Geiger

  40. ChemInform Abstract: Luminescent Platinum Complexes: Tuning and Using the Excited State

    Article • ChemInform, September 1998, Wiley

    David K Geiger

  41. ChemInform Abstract: Chromium 1995

    Article • ChemInform, March 1998, Wiley

    David K Geiger

  42. ChemInform Abstract: Chromium 1994

    Article • ChemInform, October 1996, Wiley

    David K Geiger

  43. Two salts of bis(ethanol)(meso-tetraphenylporphinato)iron(III). Molecular structures and magnetic susceptibilities

    Article • Inorganic Chemistry, June 1992, American Chemical Society (ACS)

    David K Geiger

  44. Axial ligand effects on the spin state and electrochemistry of iron porphyrins: An advanced laboratory experiment

    Article • Journal of Chemical Education, April 1991, American Chemical Society (ACS)

    David K Geiger

  45. The determination of axial ligand binding constants for iron porphyrins by cyclic voltammetry

    Article • Journal of Chemical Education, April 1991, American Chemical Society (ACS)

    David K Geiger

  46. The effect of mixed phthalocyanine-porphyrin in aggregation on the photoreduction of manganese porphyrins

    Article • Inorganica Chimica Acta, October 1990, Elsevier

    David K Geiger

  47. Photochemistry of mixed porphyrin⋯phthalocyanine aggregates

    Article • Journal of Inorganic Biochemistry, August 1989, Elsevier

    David K Geiger

  48. Mixed aggregates of phthalocyanines and porphyrins bearing oppositely charged substituents

    Article • Inorganica Chimica Acta, December 1988, Elsevier

    David K Geiger

  49. On the preparation of five-coordinate (3-chloropyridine)(porphinato)iron(III) complexes

    Article • Inorganic Chemistry, April 1987, American Chemical Society (ACS)

    David K Geiger

  50. Reductive addition of OH radicals to macrocyclic complexes

    Article • Inorganica Chimica Acta, July 1986, Elsevier

    David K Geiger

  51. Excimer formation from triplet-triplet annihilation reactions of the lowest-lying triplet excited state in aluminum(III), silicon(IV), and metal-free phthalocyanines: medium and magnetic field effects on the rate of reaction

    Article • The Journal of Physical Chemistry, April 1986, American Chemical Society (ACS)

    David K Geiger

  52. A mechanistic investigation of the photoinduced reduction of carbon dioxide mediated by tricarbonylbromo(2,2'-bipyridine)rhenium(I)

    Article • Organometallics, December 1985, American Chemical Society (ACS)

    David K Geiger

  53. Control of spin state in (porphinato)iron(III) complexes. A new crystalline phase of (isothiocyanato)(pyridine)(meso-tetraphenylporphinato)iron(III) with two magnetically distinct sites

    Article • Inorganic Chemistry, December 1985, American Chemical Society (ACS)

    David K Geiger

  54. Mössbauer and susceptibility study of inter-heme spin coupling in [Fe (OEP) (2-MeHIm)]+ dimers

    Article • The Journal of Chemical Physics, December 1985, American Institute of Physics

    David K Geiger

  55. Characterization of five-coordinate mono(imidazole)(porphinato)iron(II) complexes

    Article • Journal of the American Chemical Society, October 1985, American Chemical Society (ACS)

    David K Geiger

  56. Redox reactivity of transition-metal phthalocyanines: ligand radical formation vs. metal center oxidation

    Article • The Journal of Physical Chemistry, August 1985, American Chemical Society (ACS)

    David K Geiger

  57. Photochemistry of Cu—Olefin complexes: a flash photochemical investigation of the reactivity of Cu(ethylene)+ and Cu(cis,cis-1,5-cyclooctadiene)+2

    Article • Inorganica Chimica Acta, July 1985, Elsevier

    David K Geiger

  58. Control of spin state in (porphinato)iron(III) complexes. An axial ligand orientation effect on the spin state in bis(2-methylimidazole)(octaethylporphinato)iron(III) perchlorate

    Article • Journal of the American Chemical Society, October 1984, American Chemical Society (ACS)

    David K Geiger

  59. Control of spin state in (porphinato)iron(III) complexes. Effect of the porphyrin ligand

    Article • Inorganic Chemistry, June 1984, American Chemical Society (ACS)

    David K Geiger

  60. Control of spin state in (porphinato)iron(III) complexes. An axial ligand orientation effect leading to an intermediate-spin complex. Molecular structure and physical characterization of the monoclinic form of bis(3-chloropyridine)(octaethylporphinato)...

    Article • Journal of the American Chemical Society, May 1983, American Chemical Society (ACS)

    David K Geiger

  61. Preparation and molecular stereochemistry of six-coordinate (isothiocyanato)(pyridine)(porphinato)iron(III) complexes. (Isothiocyanato)(meso-tetraphenylporphinato)(pyridine)iron(III), a low-spin complex with a nonlinear FeNCS group, and (isothiocyanato...

    Article • Journal of the American Chemical Society, June 1982, American Chemical Society (ACS)

    David K Geiger

  62. Molecular stereochemistry of a low-spin five-coordinate iron(II) porphyrinate. (Thiocarbonyl)(octaethylporphinato)iron(II)

    Article • Inorganic Chemistry, March 1982, American Chemical Society (ACS)

    David K Geiger

  63. Structural characterization of a variable-spin(porphinato)iron(III) complex. Molecular stereochemistry of bis(3-chloropyridine)(octaethylporphinato)iron(III) perchlorate at 98 K (S = 1/2) and 293 K (S = 1/2, S = 5/2)

    Article • Journal of the American Chemical Society, January 1982, American Chemical Society (ACS)

    David K Geiger

  64. Molecular stereochemistry and crystal structure of a ‘spin-equilibrium’(S= 1/2, S= 5/2) haemichrome salt: bis-(3-chloropyridine)octaethylporphinatoiron(III) perchlorate

    Article • Journal of the Chemical Society Chemical Communications, January 1979, Royal Society of Chemistry

    David K Geiger