1-(BENZYLIDENEAMINO)-3-HYDROXYGUANIDINIUM TOSYLATE

被引：8

作者：

DOUBELL, PCJ

OLIVER, DW

VANROOYEN, PH

机构：

[1] UNIV PRETORIA,DEPT CHEM,PRETORIA 0002,SOUTH AFRICA

[2] UNIV PRETORIA,PRETORIA COLL PHARM,PRETORIA 0002,SOUTH AFRICA

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 1991年 / 47卷

关键词：

D O I：

10.1107/S010827019000498X

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

C8H11N4O+.C7H7O3S-, M(r) = 318.3, monoclinic, P2(1)/n, a = 14.539 (3), b = 20.551 (4), c = 6.062 (3) angstrom, beta = 103.24 (2)-degrees, U = 1763 (1) angstrom-3, Z = 4, D(x) = 1.20 Mg m-3, lambda = 0.7107 angstrom, mu = 1.67 mm-1, F(000) = 736, T = 298 K, final R = 0.067 for 2163 observed reflections with F > 4-sigma-(F(o)) and 274 variable parameters. The structure consists of a disordered tosylate anion linked to a guanidine cation in the asymmetric unit, with two N...O and one O...O distance < 3 angstrom. The cationic part of the guanidine moiety is best described by a resonance structure where the equilibrium is shifted towards HO-NH-CR = N+H2, rather than the delocalized HO-NH-C+R-NH2 structure.

引用

页码：353 / 355

页数：3