Issue 33, 2011

Unexpected isotopic effect of a deuteriumed countercation on the spin-Peierls-type transitions in quasi-one-dimensional bis(maleonitriledithiolato)nickelate monoanion spin systems

Abstract

Two deuteriumed quasi-one-dimensional (quasi-1D) spin-Peierls-type compounds, 4-X-benzylpyridinium-d5 bis(maleo-nitriledithiolato)nickelate (the substituent X = Br or Cl), were structurally characterized. Compared with the corresponding non-deuteration compounds, the transition temperature TC shifts to higher temperature. The isotopic effect of countercations on TC is probably related to the change of phonon frequency ω0 and ‘chemical pressure’ resulted from the substitution of pyridine by pyridine-d5.

Graphical abstract: Unexpected isotopic effect of a deuteriumed countercation on the spin-Peierls-type transitions in quasi-one-dimensional bis(maleonitriledithiolato)nickelate monoanion spin systems

Supplementary files

Article information

Article type
Communication
Submitted
18 Apr 2011
Accepted
13 Jul 2011
First published
25 Jul 2011

Chem. Commun., 2011,47, 9489-9491

Unexpected isotopic effect of a deuteriumed countercation on the spin-Peierls-type transitions in quasi-one-dimensional bis(maleonitriledithiolato)nickelate monoanion spin systems

G. Yuan, S. Zhao, C. Wang, X. Ren and J. Liu, Chem. Commun., 2011, 47, 9489 DOI: 10.1039/C1CC12221E

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