SILVER DERIVATIVES OF VARIOUS BIS(PYRAZOL-L-YL)ALKANES - THEIR BEHAVIOR IN SOLUTION AND X-RAY CRYSTAL-STRUCTURE OF [(ME2C(PZ)2)2AG]CLO4

被引：28

作者：

LORENZOTTI, A ^{[1
]}

BONATI, F ^{[1
]}

CINGOLANI, A ^{[1
]}

LOBBIA, GG ^{[1
]}

LEONESI, D ^{[1
]}

BOVIO, B ^{[1
]}

机构：

[1] UNIV PAVIA,DEPARTIMENTO CHIM GEN,I-27100 PAVIA,ITALY

来源：

INORGANICA CHIMICA ACTA | 1990年 / 170卷 / 02期

关键词：

D O I：

10.1016/S0020-1693(00)80476-4

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Various bis(pyrazol-1-yl)alkanes, (pz)2ClR2 (R Me and pzH = pyrazole; R H, pzH = pyrazole, 3,5- dimethylpyrazole or 4-nitropyrazole (L3)), give 1:1 adducts with silver(I) nitrate or methanesulphonate and 2:1 adducts with silver perchlorate or fluoroborate. In [{Me2}C(pz)2}2Ag]ClO4 four coordination is found but rarely tetrahedral because of the steric misfit of the ligand which forms NAgN angles of 82.6 or 83.8(1)°; the AgN distances range from 2.247 to 2.432(4) Å. In solution, according to combined evidence from spectra (1H and 13C), conductivity and molecular weight determinations, the (pz)2CR2 ligand is not displaced by acetone, is partially displaced by dimethyl sulphoxide or, in the case of (L3)2AgNO3, by nitrate, in agreement with the peculiar behaviour of L3. © 1990.

引用

页码：199 / 208

页数：10

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