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

March R; Pons J; Ros J; Clegg W; Alvarez-Larena A; Piniella JF; Sanz J

Inorganic Chemistry, Vol.42, No.23, 7403-7409, 2003

DOI10.1021/ic0206387 Export Citation

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

March R, Pons J, Ros J, Clegg W, Alvarez-Larena A, Piniella JF, Sanz J

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.