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 language | English |
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Pages (from-to) | 2075-2079 |
Number of pages | 5 |
Journal | Polyhedron |
Volume | 28 |
Issue number | 9-10 |
DOIs | |
Publication status | Published - 2009 Jun 22 |
Keywords
- Bis(maleonitriledithiolato)nickelate
- Crystal structure
- Magnetic property
- Nonmagnetic doping
- Spin-Peierls-like transition