Mechanism of proton transfer in the strong OHN intermolecular hydrogen bond

被引：17
|
作者：
Majerz, Irena [1 ]
Gutmann, Matthias J. [2 ]
机构：
[1] Univ Wroclaw, Fac Chem, PL-50383 Wroclaw, Poland
[2] Appleton Lab, ISIS Facil, Chilton Didcot OX11 0QX, Oxon, England
来源：
RSC ADVANCES | 2011年 / 1卷 / 02期
基金：
英国科学技术设施理事会;
关键词：
CRYSTAL NEUTRON-DIFFRACTION; UREA-PHOSPHORIC ACID; EXPERIMENTAL ELECTRON-DENSITY; O-H; SOLID-STATE; N-H; COMPLEXES; MIGRATION; SYSTEMS; TRIMETHYLAMINE;
D O I：
10.1039/c1ra00219h
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The structure of the complex of 3,5-dinitrobenzoaic acid with 3,5-dimethylpyridine was studied by neutron diffraction at 330, 300, 270, 240, 210, 180, 150, 120, 90, 60, and 30 K. The O center dot center dot center dot H bond length gradually changes from 1.403(10) angstrom at 300 K to 1.424(4) angstrom at 30 K. The proton shifts in the hydrogen bridge towards the acceptor nitrogen atom. Temperature-dependent changes in the strong OHN hydrogen bond are used to discuss the proton transfer mechanism.
引用
收藏
页码：219 / 228
页数：10
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