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Articles 1 - 9 of 9

Full-Text Articles in Physical Sciences and Mathematics

Valine Sulfonamidecinnamic Acid Asymmetric Crystal Reactions, Kraig A. Wheeler, Steven H. Malehorn, Annie E. Egan Nov 2011

Valine Sulfonamidecinnamic Acid Asymmetric Crystal Reactions, Kraig A. Wheeler, Steven H. Malehorn, Annie E. Egan

Faculty Research and Creative Activity

Racemic and homochiral valine sulfonamidecinnamic acidscrystallize with components aligned by use of thecomplementary features of hydrogen bonds and moleculartopology to give supramolecular dimers. These discretemotifs effectively organize adjacent olefins for UV initiated10 single-crystal-to-single-crystal [2+2] photodimerizationreactions. The racemic crystals produce inversion relatedcyclobutane products, while the desymmetrized crystallinearchitectures of the homochiral phase promote asymmetricphotodimerization with 90% conversion.


6-[(4-Hydroxyphenyl)Diazenyl]- 1,10-Phenanthrolin-1-Ium Chloride Monohydrate, Akram Hazeen, Yan Zhang, Minchong Mao, Kraig A. Wheeler, Mark E. Mcguire Oct 2011

6-[(4-Hydroxyphenyl)Diazenyl]- 1,10-Phenanthrolin-1-Ium Chloride Monohydrate, Akram Hazeen, Yan Zhang, Minchong Mao, Kraig A. Wheeler, Mark E. Mcguire

Faculty Research and Creative Activity

In the cation of the title molecular salt, C18H13N4O+_Cl__H2O, the dihedral angle between the mean planes of the 1,10- phenanthroline system and the phenol ring is 14.40 (19)_. The crystal packing is stabilized by O—H_ _ _O hydrogen bonds, weak N—H_ _ _Cl and O—H_ _ _Cl intermolecular interactions and _—_ stacking interactions [centroid–centroid distance = 3.6944 (13) and 3.9702 (12) [A °]


Enantiocontrolled Solid-State Photodimerizations Via A Chiral Sulfonamidecinnamic Acid, Kraig A. Wheeler, Joshua D. Wiseman, Rebecca C. Grive Jan 2011

Enantiocontrolled Solid-State Photodimerizations Via A Chiral Sulfonamidecinnamic Acid, Kraig A. Wheeler, Joshua D. Wiseman, Rebecca C. Grive

Faculty Research and Creative Activity

The supramolecular patterns of three polymorphs of a chiral sulfonamidecinnamic acid reveal components effectively organized into predetermined hydrogen-bonded dimers with favorable <3.8A ° olefin spacing for enantioselective single-crystal-to-single-crystal [2 + 2] photodimerization reactions.


Method Developments To Analyze Caffeine And Acesulfame-K Concentrations In Natural Waters In And Around Charleston, Il, Usa, Laleen Bodhipaksha Jan 2011

Method Developments To Analyze Caffeine And Acesulfame-K Concentrations In Natural Waters In And Around Charleston, Il, Usa, Laleen Bodhipaksha

Masters Theses

No abstract provided.


Structural And Photochemical Behavior Of Phenyl And Dihydrophenyl Sulfonamidecinnamic Acids, Sergey Zinovchik Jan 2011

Structural And Photochemical Behavior Of Phenyl And Dihydrophenyl Sulfonamidecinnamic Acids, Sergey Zinovchik

Masters Theses

No abstract provided.


The Effect Of Surface Hydrophobicity On Wind Erosion Probed By Atomic Force Microscopy, Bradley Eric Frost Jan 2011

The Effect Of Surface Hydrophobicity On Wind Erosion Probed By Atomic Force Microscopy, Bradley Eric Frost

Masters Theses

No abstract provided.


The Affect Of Surface Hydrophobicity On Wind Erosion Probed By Atomic Force Microscopy, Bradley Eric Frost Jan 2011

The Affect Of Surface Hydrophobicity On Wind Erosion Probed By Atomic Force Microscopy, Bradley Eric Frost

Masters Theses

No abstract provided.


Catalytic Activity Of Titania And Titania-Containing Nanomaterials: And, Spatial Distribution Of Silica Surface Groups Using A Tethered Amine Catalyst, Ramkumar Samala Jan 2011

Catalytic Activity Of Titania And Titania-Containing Nanomaterials: And, Spatial Distribution Of Silica Surface Groups Using A Tethered Amine Catalyst, Ramkumar Samala

Masters Theses

No abstract provided.


Synthesis Of Molecular Containers Based On Modifications Of Resorcin(4)Arene And Calix(4)Arene, Anupama Makineni Jan 2011

Synthesis Of Molecular Containers Based On Modifications Of Resorcin(4)Arene And Calix(4)Arene, Anupama Makineni

Masters Theses

No abstract provided.