Reactivity of 2-pyridinecarboxylic esters with cadmium(II) halides:: Study of 113Cd NMR solid state spectra and crystal structures of hexacoordinated complexes [CdI2(C5H4NCOOMe)2] and [CdI2(C5H4NCOOPrn)2]

被引：21

作者：

March, R

Pons, J ^{[1
]}

Ros, J

Clegg, W

Alvarez-Larena, A

Piniella, JF

Sanz, J

机构：

[1] Univ Autonoma Barcelona, Unitat Quim Inorgan, Dept Quim, Barcelona 08193, Spain

[2] Univ Newcastle Upon Tyne, Dept Chem, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

[3] Univ Autonoma Barcelona, Unitat Cristallografia, Dept Geol, Barcelona 08193, Spain

[4] Univ Autonoma Madrid, Inst Ciencia Mat, Madrid 28047, Spain

来源：

INORGANIC CHEMISTRY | 2003年 / 42卷 / 23期

关键词：

D O I：

10.1021/ic0206387

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The series of complexes [CdX2(C5H4NCOOR)] (X = Cl or Br; R = Me, Et, Pr-n or Pr-i) and [CdX2(C5H4NCOOR)(2)] (X = 1; R = Me, Et, Pr-n, or Pr-i) have been obtained by the addition reaction of esters of 2-pyriclinecarboxylic acid to cadmium(II) halides. X-ray crystal structures of two complexes [Cdl(2)(C5H4NCOOR)(2)], R = Me (10) and R = PC (12), have been determined. In both cases, the structure consists of discrete neutral monomeric units where the cadmium atom has a distorted octahedral coordination with Cdl(2)N(2)O(2) core, two halides being in cis disposition. Structural information is compared with that deduced from Cd-113 CPMAS NMR experiments. Chemical shift anisotropies are discussed in terms of distortions produced in cadmium octahedra. The orientation of the principal axes of Cd-113 shielding tensor is also analyzed and related to the disposition of ligands in the structures of two analyzed compounds.

引用

页码：7403 / 7409

页数：7

共 30 条

[1] Mercury(II) halide adducts of esters of 2-pyridinecarboxylic acid. Crystal structures and structural variations within the series [HgCl2(C5H4NCOOR)], R=Me, Et, Pr-n, Pr-i [J].