Reversible color changes of metal(II)-N(1),N(3)-di(pyridin-4-yl)isophthalamide complexes via desolvation and solvation

Dalton Trans. 2010 Nov 7;39(41):9923-8. doi: 10.1039/c0dt00326c. Epub 2010 Sep 27.

Abstract

Four metal(ii)-N(1),N(3)-di(pyridin-4-yl)isophthalamide (L) complexes formulated as [Cu(L)(2)Cl(2)]·5.5H(2)O (1), [Ni(L)(2)Cl(2)]·5.5H(2)O (2), [Co(L)(m-BDC)]·DMF (3) (m-BDC = 1, 3-benzenedicarboxylic dianion) and [Cd(2)(L)(2)(m-BDC)(2)]·DMF·0.2H(2)O (4) have been solvothermally synthesized and structurally characterized by single-crystal X-ray diffractions. Complexes 1 and 2 are isomorphous, both of them exhibit chain-like frameworks, in which ligand L shows a cis-conformation. Complex 3 displays a three dimensional architecture constructed by ligand L with intermediate-conformation linking different chains. Complex 4 shows a corrugated two dimensional layer in which ligand L with trans-conformation and m-BDC act as bridging groups linking different Cd(ii) centers. The four complexes all possess stable host frameworks, and complexes 1-3 show reversible color changes via desolvation and solvation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Color
  • Crystallography, X-Ray
  • Models, Molecular
  • Molecular Conformation
  • Organometallic Compounds / chemistry*
  • Pyridines / chemistry*
  • Solvents / chemistry*
  • Spectrophotometry, Ultraviolet
  • Stereoisomerism

Substances

  • Organometallic Compounds
  • Pyridines
  • Solvents