NMR-STUDY OF N-1-N-1-DIMETHYL-N-2-ARYLUREAS

被引：6

作者：

WAWER, I ^{[1
]}

KOLEVA, V ^{[1
]}

机构：

[1] UNIV SOFIA,DEPT CHEM,BU-1126 SOFIA,BULGARIA

来源：

JOURNAL OF MOLECULAR STRUCTURE | 1995年 / 344卷 / 03期

关键词：

D O I：

10.1016/0022-2860(94)08435-K

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

H-1, C-13 and N-15 NMR chemical shifts were measured for N-1 N-1-dimethyl-N-2-arylureas. The absence of decoalescence of the N-1-methyl signals in C-13 spectra down to 190 K in acetone-d(6) solution and the presence of two signals in solid state CP-MAS spectra indicate that the rotational barrier around the C-N-1 bond is 26-32 kJ mol(-1).

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页码：251 / 256

页数：6

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