کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5418995 | 1506979 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Computational study of hydrogen bonding interaction between formamide and nitrosyl hydride
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
The hydrogen bonding interaction of formamide-nitrosyl hydride complex has been investigated using density functional theory (DFT) and ab initio method. The natural bond orbital (NBO) analysis and atom in molecules (AIM) theory were applied to understand the nature of the interaction. Two stable geometries are found on the potential energy surface, a six-membered cyclic structure of complex A and a seven-membered cyclic structure of complex B, characterized by AIM analysis. Complex A is less stable than complex B. It is confirmed that there are contractions of CH (compared with the monomer HCONH2), NH bonds (compared with the monomer HNO) and the corresponding stretching vibrational frequencies are blue-shifted, while there is an elongation of the NH bond and the corresponding stretching vibrational frequency is red-shifted, relative to those of the monomer HCONH2. From NBO analysis, it is evident that the electron densities in the Ïâ (CH) and Ïâ(NH) of the complex A are less than those of the monomers HCONH2 and HNO, which strengthen CH and NH bonds. Furthermore, the increases in s-characters of X also strengthen XH bonds.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure: THEOCHEM - Volume 778, Issues 1â3, 11 December 2006, Pages 49-53
Journal: Journal of Molecular Structure: THEOCHEM - Volume 778, Issues 1â3, 11 December 2006, Pages 49-53
نویسندگان
Ying Liu, Wenqing Liu, Haiyang Li, Yong Yang, Shuang Cheng,