Heterometallic copper(II)-lead(II), nickel(II)-lead(II) and copper(II)-indium(III) compounds derived from an acyclic double-compartment Schiff base ligand

Sagarika Bhattacharya, Sasankasekhar Mohanta

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Abstract The work in this report deals with the syntheses, characterization and crystal structures of four compounds of composition [NiIILOEt-pn(H2O)2PbIIBr2] (1), [NiIILOEt-pn(H2O)2PbII(NO3)2] (2), [{CuIILOEt-pn(μ-Br)PbII}2(μ-Br)2] (3) and [{CuII(NO3)LOEt-pnInIII(NO3)}2(μ-OH)2] (4), where H2LOEt-pn is N,N′-propanebis(3-ethoxysalicylaldimine). Copper(II)/nickel(II) in these compounds occupies the N(imine)2O(phenoxo)2 compartment, while PbII/InIII occupies the O(phenoxo)2O(ethoxy)2 compartment of the ligand. Compounds 1 and 2 are diphenoxo-bridged dinuclear, whereas two dinuclear units are dimerized in 3 and 4. Copper(II) and indium(III) in the dinuclear unit in 4 are diphenoxo-bridged, while copper(II) and lead(II) in 3 are triply bridged by bis(μ-phenoxo)-μ-bromide moiety. Dimerization takes place by two bridging bromides (that bridge two PbII centers) in 3 and by two bridging hydroxides (that bridge two InIII centers) in 4. Copper(II) in 3 and 4 are distorted square pyramidal, while nickel(II) centers in 1 and 2 are distorted octahedral. All the four oxygen atoms of the O(phenoxo)2O(ethoxy)2 compartment are coordinated to the second metal ion (PbII/InIII) in 1-4. Coordination number of lead(II) is 6, 7 and 8 in 1, 3 and 2, respectively, while indium(III) in 4 is 8-coordinated. Salient features of the compounds are discussed.

Original languageEnglish
Article number16495
Pages (from-to)169-175
Number of pages7
JournalInorganica Chimica Acta
Volume432
DOIs
StatePublished - 1 Jun 2015
Externally publishedYes

Keywords

  • 3-Ethoxysalicylaldehyde-diamine ligand
  • Heterometallic
  • Indium(III)
  • Lead(II)
  • Schiff base

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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