Synthesis, Magnetic and Spectral Properties of One-dimension Chain Adducts of Ni(Bu-dtp)₂, NiQ₂ and Ni(TTA)₂ with 4,4'-bipyridine. Crystal Structure of [4,4'-(bipy)-Ni(Bu-dtp)₂]_n (Bu-dtp=dibutyldithiophosphate, Q=8-quinolinol, TTA=4,4,4-trifluoro-l-(2-thienyl)-l,3-butanedionate,4,4'-bipy=4,4'-bipyridine)

Abstract

Three one-dimension chain adducts,catena-poly-{bis(dibutyldithiophosphato-K²S,S') nickel(II)-μ-(4,4'-bipyridine)-KN,KN),catena-poly(bis(8-quinolinolato-N¹,O⁸)nickel(II)-μ-(4,4'-bipyridine)-KN,KN} and catena-poly(bis(4,4,4-trifluoro-l-(2-thieny])-l,3-butanedionato-K²O,O') nickel(II)-μ-(4,4'-bipyridine)-KN,KN), hereafter abbreviated to [4,4'-(bipy)-Ni(Bu-dtp)₂]_n, (4,4'-(bipy)-NiQ₂]_n and [4,4'-(bipy)-Ni(TTA)₂]_n have been synthesized and characterized by elemental analysis, IR, magnetic properties and X-ray photoelectron spectra(XPS). The crystal structure determination of [4,4'-(bipy)-Ni(Bu-dtp)₂]_n reveals that the local coordination geometry around nickel(II) is a distorted octahedron and the Ni(Bu-dtp)₂ units are bridged by 4,4'-bipyridine to form an infinite chain. The Ni-S and Ni-N bond lengths are 2.468(6)-2.494(6)Å and 2.10(2)-2.15(2)Å, respectively.

Key Words:

• Synthesis
• Magnetism
• Spectral properties
• One-dimension
• Chain and Adduct