Doping effect of nonmagnetic impurity on the spin-Peierls-like transition in the quasi-one-dimensional (quasi-1D) spin system of 1-(4′-nitrobenzyl)pyridinium bis(maleonitriledithiolato)nickelate

Xiao Ming Ren, Guang Xiang Liu, Heng Xu, Tomoyuki Akutagawa, Takayoshi Nakamura

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

A nonmagnetic compound, [NO2BzPy][Cu(mnt)2] (mnt2- = maleonitriledithiolate; NO2BzPy+ = 1-(4′-nitrobenzyl)pyridinium), is isostructural with [NO2BzPy][Ni(mnt)2], which is a quasi-1D spin system and exhibits a spin-Peierls-like transition with J = 192 K in the gapless state and spin energy gap = 738 K in the dimerization state, respectively. Further, five nonmagnetic impurity doped compounds [NO2BzPy][CuxNi1-x(mnt)2] (x = 0.04-0.74) were prepared, and their crystal structures as well as magnetic properties were investigated. The nonmagnetic doping causes the suppression of the spin transition with an average rate of 139(13) K/percentage of dopant concentration, and the transition collapse is estimated at around x > 0.5.

Original languageEnglish
Pages (from-to)2075-2079
Number of pages5
JournalPolyhedron
Volume28
Issue number9-10
DOIs
Publication statusPublished - 2009 Jun 22
Externally publishedYes

Keywords

  • Bis(maleonitriledithiolato)nickelate
  • Crystal structure
  • Magnetic property
  • Nonmagnetic doping
  • Spin-Peierls-like transition

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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