ic2026768_si_004.cif (173.72 kB)

Charge Ordering and Carrier Generation by Air Oxidation of a Nickel Complex with Selenium-Containing Extended-Tetrathiafulvalenedithiolate Ligands

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posted on 05.03.2012 by Hiroyuki Yajima, Biao Zhou, Emiko Fujiwara, Akiko Kobayashi, Hayao Kobayashi
The structures and electrical properties of (nBu4N)­[Ni­(dmstfdt)2] (1), (nBu4N)2[Ni­(dmstfdt)2] (2), and (nBu4N)3[Ni­(dmstfdt)2]2 (3), where dmstfdt = extended-tetrathiafulvalenedithiolate ligand, were examined. The fresh crystal of 1 was found to be a Mott insulator, but the crystal gradually became highly conducting because of air oxidation. Compound 3 exhibited a semiconducting charge-ordering state.