Charge-density-wave to Mott-Hubbard phase transition in quasi-one-dimensional bromo-bridged Pd compounds

Shinya Takaishi, Mitsuhito Takamura, Takashi Kajiwara, Hitoshi Miyasaka, Masahiro Yamashita, Muneaki Iwata, Hiroyuki Matsuzaki, Hiroshi Okamoto, Hisaaki Tanaka, Shin Ichi Kuroda, Hiroyuki Nishikawa, Hiroki Oshio, Kenichi Kato, Masaki Takata

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67 Citations (Scopus)


A -PdIIIBr-PdIII- Mott-Hubbard state was observed in a quasi-one-dimensional bromo-bridged Pd compound [Pd(Bn)2Br](C 5-Y)2·H2O (en = ethylenediamine, C 5-Y = dipentylsulfosuccinate) for the first time. The phase transition between Mott-Hubbard and charge-density-wave states occurred at 206 ± 2 K and was confirmed by using X-ray, ESR, Raman and electronic spectroscopies, electrical resistivity, and heat capacity. From X-ray powder diffraction patterns and Raman spectra of a series of Pd-Br compounds, [Pd(en)2Br](Cn-Y)2·H2O (n = 4, 5, 6, 7, 8, 9, and 12), chemical pressure from the alkyl chains of the counterions caused the phase transition.

Original languageEnglish
Pages (from-to)12080-12084
Number of pages5
JournalJournal of the American Chemical Society
Issue number36
Publication statusPublished - 2008 Sept 10


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