Two-amidine derivatives studied by 1H,13C, 14N, 15N NMR and GIAO-CHF calculations

被引：26

作者：

Wiench, JW

Stefaniak, L

Grech, E

Bednarek, E

机构：

[1] Polish Acad Sci, Inst Organ Chem, PL-01224 Warsaw, Poland

[2] Tech Univ Szczecin, Inst Fundamental Chem, PL-71065 Szczecin, Poland

[3] Drug Inst, PL-00725 Warsaw, Poland

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2 | 1999年 / 04期

关键词：

D O I：

10.1039/a806259e

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

H-1,C-13, N-14, and N-15 NMR data are presented for two amidine derivatives and their complexes with TFA in 1:1 and 1:2 molar ratios. The protonation site at the N5 atom was established based upon the observed coupling constants, NOE interactions, and chemical shift change. The GIAO-CHF calculations were also performed for the free bases and their N5 cations.

引用

页码：885 / 889

页数：5