Solid-State Structures and Solution Analyses of a Phenylpropylpyridine N-Oxide and an N-Methyl Phenylpropylpyridine

被引:20
|
作者
Richter, Isabella [1 ]
Warren, Mark R. [1 ]
Minari, Jusaku
Elfeky, Souad A. [1 ]
Chen, Wenbo [1 ]
Mahon, Mary E. [1 ]
Raithby, Paul R. [1 ]
James, Tony D. [1 ]
Sakurai, Kazuo
Teat, Simon J. [2 ]
Bull, Steven D. [1 ]
Fossey, John S. [1 ]
机构
[1] Univ Bath, Dept Chem, Bath BA2 7AY, Avon, England
[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA
基金
英国工程与自然科学研究理事会;
关键词
cations; fluorescence; hydrogen bonds; alkylpyridines; pi-stacking; LEONARD LINKER COMPOUNDS; PI-STACKING INTERACTIONS; AROMATIC INTERACTIONS; CRYSTALLOGRAPHIC EVIDENCE; INTRAMOLECULAR CATION; ARENE INTERACTIONS; CONFORMATION; RECOGNITION; PROTEINS; KINETICS;
D O I
10.1002/asia.200800255
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The crystal structures of phenylpropylpyridine-N-oxide and N-methyl-phenylpropylpyridinium iodide are compared, revealing that hydrogen bonding with the solvent molecule plays an important role in the N-oxide compound, whilst electrostatic interactions are predominant in controlling the solid-state orientation of the N-methylated compound. Fluorescence spectroscopy and NOESY indicate that in contrast to the previously reported pyridinium iodide, the N-oxide is not subject to intramolecular pi-stacking, as judged by excimer emission and a lack of corresponding cross peaks, respectively.
引用
收藏
页码:194 / 198
页数:5
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