THE CHEMISTRY AND STRUCTURE OF THE P(O)NC(O) SYSTEM .2. CRYSTAL AND MOLECULAR-STRUCTURE OF N-DIETHOXYPHOSPHORYLFORMAMIDINE

被引：4

作者：

BAUERMEISTER, S

MODRO, TA

PSOTTA, PK

VANROOYEN, PH

机构：

[1] Department of Chemistry, University of Pretoria

来源：

PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS | 1992年 / 69卷 / 1-2期

关键词：

N-PHOSPHORYLATED FORMAMIDINE; CRYSTAL AND MOLECULAR STRUCTURE; P-N BOND DISTANCE; O=P-N BOND ANGLE; GEOMETRY OF THE O=P-N-C-X SKELETON; ELECTROPHILICITY/NUCLEOPHILICITY OF THE P(O)NC(O) SYSTEM;

D O I：

10.1080/10426509208036854

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The crystal and molecular structure of N-diethoxyphosphorylformamidine (2) has been determined. P21/n, a = 8. 343(1), b = 9. 249(1), c = 12. 413(1) Å, β = 102.06 (1)°; V = 937(1) Å.3 Final Rw =0. 052 for 1705 reflections with I > 3<σ(I) and 113 parameters. Molecular parameters indicate strong electron-donating effect of the amidine substituent, resulting in high P-N bond order and small difference between the two C-N bond distances. The geometry of the molecule is different from that observed for phosphoric-carboxylicimides: The O=P-N=C-NH2 system is almost planar with the phosphoryl oxygen in short contact with the sp2 carbon atom. © 1992, Taylor & Francis Group, LLC. All rights reserved.

引用

页码：63 / 70

页数：8

共 12 条

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