Publications:

Geiger, D. K.; Geiger, H. C.; Moore, S. M. "Intermolecular interactions in a phenol-substituted benzimidazole."  Acta Cryst. 2019, E75, 272-276.

Geiger, D. K.; Geiger, H. C.; Morell, D. L. "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."  Acta Cryst. 2018, E74, 594-599.

Geiger, H. C.; Geiger, D. K.; Roberts, W. R.; Morell, D. L.; Huttunen, P.; Schulman, J. L.; Tran, M.; Farthing, D. "Non-steroidal biphenyl gelators:  Correlation of xerogel structure with solid-state structure and circular dichroism spectroscopy." Gels 2018, 4, 34. doi:10.3390/gels4020034

David K. Geiger, H. Cristina Geiger, Shawn M. Moore and William R. Roberts. Structural characterization, gelation ability, and energy-framework analysis of two bis(long-chain ester)-substituted 4,4'-biphenyl compounds. Acta Cryst. (2017). C73, 791–796.

Geiger, H. C.; Zick, P. L.;Roberts, W. R.; Geiger, D. K. Synthesis and characterization of a novel long-alkyl-chain-ester-substituted benzimidazole gelator and its octan-1-ol solvate. Acta Cryst. C 2017, C73, 350-356.

Geiger, H. C.; Lamson, M.; Galka, D. J. Synthesis and spectroscopic characterization of chiral biphenyl-cholesterol gels. Langmuir 2014, 30, 13979-13986.

Geiger, D. K.; Geiger, H.C.; Deck, J. M. Structure determination of three furan-substituted benzimidazoles and calculations of p-p and C-H...p interaction energies. Acta Cryst. 2014, C70, 1125-1132.

Geiger, H. C.; Donohoe, J. S.; Geiger, D. K. “The crystal and molecular structure of 4-Bromo-2-(5-bromothiophen-2-yl)-1-[(5-bromothiophen-2-yl)methyl]-5,6-dimethyl-1H-benzimidazole,” Acta Cryst. 2014, E70, o486-o487.

Geiger, D. K.; Geiger, H. C.; Szczesniak, L. M. "[The crystal and molecular structure of] Thiophene-2-carbaldehyde azine," Acta Cryst. 2013, E69, o916.

Geiger, H. C,; Donohoe, J. S. Green Oxidation of Menthol Enantiomers and Analysis by Circular Dichroism Spectroscopy: An Advanced Organic Chemistry Laboratory. J. Chem. Educ. 2012, 89, 1572-1574.

Geiger, D. K.; Geiger, H. C.; Deck, J. M. "[The Crystal and Molecular Structure of] 2-(Furan-2-yl)-1,3-bis(furan-2-ylmethyl)-1H-benzimidazol-3-ium chloride monohydrate," Acta Cryst. 2012, E68, o3006-o3007. 

Geiger, D. K.; Geiger, H. C.; Donohoe, J. S. The Crystal and Molecular Structure of 2-Amino-5-nitro-N-[(E )-thiophen-2-ylmethylidene]aniline, Acta Cryst. E 2012, 68, o2867.

Geiger, D. K.; Geiger, H. C.; Williams, L.; Noll, B. C. 2-(Thiophen-2-yl)-1-(thiophen-2-ylmethyl)-1H-benzimidazole. Acta Crystallographica E68,420, 2012.

Geiger, H. C.; Geiger, D. K.; Baldwin, C. Synthesis, Photophysical Characterization, and gelation Studies of a Stilben-Cholesterol derivative: An advanced Physical Organic chemistry laboratory. J.Chem. 2006, Ed. Vol. 83 No.1.

Whitten, D. G.; Perlstein J.; Geiger, H. C.; Liang, K.; Lu, L.; Penner, T. P.; Rasmussen, S.; Chen, L.; Law, K-Y. Structure and Properties of aggregates formed by Self-Assembly of Amphiphiles and related species.  Proceedings of the Tenth Annual Symposium of the NSF Center. World Scientific Publishing Co., editor: Lewis Rothberg. 2000,160.

Whitten, D. G.; Perlstein J.; Geiger, H. C.; Liang, K.; Lu, L.; Penner. An Attempt to Correlate the Photophysical Behavior to the Structure of the Gelator. Proceedings of the Tenth Annual Symposium of the NSF Center. World Scientific Publishing Co., editor: Lewis Rothberg. 2000,139.

Rong Wang, Cristina Geiger, Liaohai Chen, Basil Swanson, and David G. Whitten; Direct Observation of Sol-Gel Conversion: The Role of the Solvent in Organogel Formation, Journal of the American Chemical Society; 2000; 122(10); 2399-2400.

Geiger, H. C.; Chen, L.; Perlstein, J.; Whitten, D. G. Self-Assembly of Styryl Naphthalene Amphiphiles in Aqueous Dispersions and Interfacial Films: Aggregate Structure, Assembly Properties, Photochemistry and Photophysics. J. Phys. Chem. B, 1999, 43, 9161

Geiger, H. C.; Perlstein, J.; Lachicotte, R.; Wyrozebski, K. Whitten, D. G. Self-Assembly of Aromatic derivatized Amphiphiles: Phenyl, Biphenyl, and Terphenyl Acids and Phospholipids. Langmuir 1999,17, 5606.

Geiger, H. C.; Stanescu, M.; Chen, L.; Whitten, D. G. Organogels Resulting from Competing Self-Assembly Units in the Gelator: Structure, Dynamics and Photophysical Behavior of Gels formed from Cholesterol-Stilbene and Cholesterol Squarine gelators. Langmuir, 1999, 15, 2241.

Whitten, D. G.; Geiger, H. C.; Chen, L.; Perlstein, J.; Song, X. Self-Assembly of Aromatic-Functionalized Amphiphiles: The Role and Consequences of Aromatic-Aromatic Noncovalent Interactions in Building Supramolecular Aggregates and Novel Assemblies. J. Phys. Chem. 1998,102,10098.

Lucia, L.A.; Wyrozebski, K.I.; Chen, L.; Geiger, H. C.; Whitten, D.G.  Electron Transfer Photofragmentation Reactions in Monolayer Films at the Air-Water Interface. Langmuir, 1998.

Song, X.; Geiger, H.C.; Farahat, M; Perlstein, J.; Whitten, D.G. Aggregation of Stilbene Derivatized Fatty Acids and Phospholipids in Monolayers and Vesicles. J. Am. Chem. Soc. 1997.

Vaday, S.; Geiger, H.C.; Perlstein, J.; Whitten, D.G. Structure of Aggregates of trans-4-alkoxy-4’-Carboxystilbenes in Solid State and in Microheterogeneous Media. A Link between the “Unit Aggregate” and Extended Arrays. J. Phys. Chem. 1997, 101, 321.

Song, X.; Geiger, H.C.; Vaday, S.; Perlstein, J.; Whitten, D.G.  Supramolecular Aggregates of Photoreactive Aromatics. Structure, Photophysics and Photochemistry of stilbene and Azobenzene Phospholipids, submitted XVIIth Internal Photochemistry Conference. J. Photochem. & Photobio. 1996, 102,39.

Chen. H.; Farahat, C.W.; Farahat, M.; Geiger, H.C.; Leinhos, U.; Liang, K.; Song, X.; Penner, T.L.; Ulman, A.; Perlstein, J.; Law, K.-Y.; Whitten, D.G.  “Supramolecular Assemblies of Organic Chromophores in LB Films, Supported Multilayers and related Media.”  MRS Bulletin: Organic Thin Films, 1995, 20, 39.

Song, X.; Geiger, H.C.; Leinhos, U.; Perlstein, J.; Whitten, D.G.  “Trans-Stilbene Aggregates in Microheterogeneous Media.  Evidence for a Chiral Cyclic Supramolecular Unit.” J. Am. Chem. Soc. 1994,  116, 10340.

Song, X., Geiger, H.C.; Furman, I.; Whitten, D.G.; Anatomy of an Aggregate. “Use of Functionalized Phospholipids to Investigate Stoichiometry an Structure of “H” Aggregates formed from Amphiphilic trans-Stilbene Derivatives.”  J. Am. Chem. Soc. 1994, 116, 4103.

Whitten, D. G.; Spooner, S.P.; Geiger, H.C.; Furman, I.; Richard, W.; Kim, Y.S.; Liang, H. Chen; Ulman, A.; Penner, T.L.; Law, K.-Y;  “Supramolecular Structures and Reactivity in Bilayers and Langmuir-Blodgett Assemblies Formed via Self-Assembly of Polyfunctional Amphiphiles.”  Proc. of the 3rd IUMRS-ICAM-93, Advanced Materias ‘93 A: Biomaterial organic and Intelligent Materials, Elsevier Science Publishers, Amsterdam, 1994, Aoki et al., eds. pp 503-508.

Furman, I.; Geiger, H.C.; Whitten, D.G.; Penner, T.L.; Ulman, A.  “Aggregation Phenomena in Langmuir-Blodgett Films of Polar Stilbene Amphiphiles” Langmuir, 10, 837, 1994.

Whitten, D.G.; Furman, I.; Geiger, H.C.; Richard, W.; Spooner, S.P. “Photoinduced Electron Transfer Reactions of trans-Stilbene Surfactants in Langmuir-Blodgett Assemblies and Phospholipid Bilayers.”  Proceeding Indian Acad. Sci. (Chem. Sci.), 105, 527, 1993, S. Abdel-Mottaleb, Editor.

Creary, X.; Geiger, H.C. "Solvolysis of a-keto Norbornyl Trifluoro-acetates and Triflates.  Discrete a-keto Cations vs. o-Assisted (ka) Processes." J. Am. Chem. Soc. 1983, 105, 7123-7129.

Creary, X.; Geiger, C.C.; Hilton, K. "Mesylate Derivatives of a-hydroxy Phosphonates. Formation of Carbocations Adjacent to the Diethylphosphonate Group" J. Am. Chem Soc. 1982,105, 2851-2858.

Creary, X.; Geiger, C.C. "Properties of a-ketocations.  Facile Generation under Solvolytic Conditions" J. Am. Chem. Soc. 1982, 104, 4151-4162.

Ferraudi, G.; Carrasco, C. "Photochemistry of Low-Spin Iron(III) Complexes with Macrocyclic Ligands" Inorg. Chem. 1980, 19, 3466-3469.

Hoet, P.; Carrasco, C. "Estudio Phytoquimico de la Opuntia Pachypus." Third Latin American Congress of Chemistry, 1977, Lima, Peru.