Dinuclear fused salen complexes of group-10 metals: Peculiarity of the crystal structure and near-infrared luminescence of a bis(Pt-salen) complex

Hirohiko Houjou, Yuki Hoga, Yi Lan Ma, Hiroto Achira, Isao Yoshikawa, Toshiki Mutai, Kazunari Matsumura

Research output: Contribution to journalArticle

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Abstract

Dinuclear fused salen complexes with Ni, Pd, and Pt nuclei were synthesized, and their crystal structures were determined. In the crystal structure of the Pt complexes, the molecules were virtually planar and formed a closely stacked dimer every two molecules, whose Pt—Pt interatomic distance was 3.43 Å. The absorption spectra of the dinuclear salen complexes were similar to each other both in solution and in the solid state. The dinuclear Pt complex exhibited photoluminescence, presumably related to the π-conjugated system of the naphthalene ring, both in solution and in the solid state. The low-energy emission, corresponding to a longer wavelength compared to that of analogous mononuclear complexes, ranged to the near-infrared region, suggesting that the naphthalene ring is perturbed by the adjoining chelate rings as if these moieties formed a fused aromatic ring system.

LanguageEnglish
Pages27-34
Number of pages8
JournalInorganica Chimica Acta
Volume461
DOIs
StatePublished - 2017 May 1

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Naphthalene
Luminescence
Crystal structure
Metals
luminescence
Infrared radiation
crystal structure
Molecules
rings
naphthalene
Dimers
metals
Absorption spectra
Photoluminescence
solid state
Wavelength
chelates
molecules
dimers
absorption spectra

Keywords

  • Metal-metal contact
  • Near-infrared emission
  • Photoluminescence
  • Quasi aromaticity
  • π-Conjugated system

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Dinuclear fused salen complexes of group-10 metals : Peculiarity of the crystal structure and near-infrared luminescence of a bis(Pt-salen) complex. / Houjou, Hirohiko; Hoga, Yuki; Ma, Yi Lan; Achira, Hiroto; Yoshikawa, Isao; Mutai, Toshiki; Matsumura, Kazunari.

In: Inorganica Chimica Acta, Vol. 461, 01.05.2017, p. 27-34.

Research output: Contribution to journalArticle

Houjou, Hirohiko ; Hoga, Yuki ; Ma, Yi Lan ; Achira, Hiroto ; Yoshikawa, Isao ; Mutai, Toshiki ; Matsumura, Kazunari. / Dinuclear fused salen complexes of group-10 metals : Peculiarity of the crystal structure and near-infrared luminescence of a bis(Pt-salen) complex. In: Inorganica Chimica Acta. 2017 ; Vol. 461. pp. 27-34
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abstract = "Dinuclear fused salen complexes with Ni, Pd, and Pt nuclei were synthesized, and their crystal structures were determined. In the crystal structure of the Pt complexes, the molecules were virtually planar and formed a closely stacked dimer every two molecules, whose Pt—Pt interatomic distance was 3.43 {\AA}. The absorption spectra of the dinuclear salen complexes were similar to each other both in solution and in the solid state. The dinuclear Pt complex exhibited photoluminescence, presumably related to the π-conjugated system of the naphthalene ring, both in solution and in the solid state. The low-energy emission, corresponding to a longer wavelength compared to that of analogous mononuclear complexes, ranged to the near-infrared region, suggesting that the naphthalene ring is perturbed by the adjoining chelate rings as if these moieties formed a fused aromatic ring system.",
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AU - Houjou,Hirohiko

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AU - Ma,Yi Lan

AU - Achira,Hiroto

AU - Yoshikawa,Isao

AU - Mutai,Toshiki

AU - Matsumura,Kazunari

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N2 - Dinuclear fused salen complexes with Ni, Pd, and Pt nuclei were synthesized, and their crystal structures were determined. In the crystal structure of the Pt complexes, the molecules were virtually planar and formed a closely stacked dimer every two molecules, whose Pt—Pt interatomic distance was 3.43 Å. The absorption spectra of the dinuclear salen complexes were similar to each other both in solution and in the solid state. The dinuclear Pt complex exhibited photoluminescence, presumably related to the π-conjugated system of the naphthalene ring, both in solution and in the solid state. The low-energy emission, corresponding to a longer wavelength compared to that of analogous mononuclear complexes, ranged to the near-infrared region, suggesting that the naphthalene ring is perturbed by the adjoining chelate rings as if these moieties formed a fused aromatic ring system.

AB - Dinuclear fused salen complexes with Ni, Pd, and Pt nuclei were synthesized, and their crystal structures were determined. In the crystal structure of the Pt complexes, the molecules were virtually planar and formed a closely stacked dimer every two molecules, whose Pt—Pt interatomic distance was 3.43 Å. The absorption spectra of the dinuclear salen complexes were similar to each other both in solution and in the solid state. The dinuclear Pt complex exhibited photoluminescence, presumably related to the π-conjugated system of the naphthalene ring, both in solution and in the solid state. The low-energy emission, corresponding to a longer wavelength compared to that of analogous mononuclear complexes, ranged to the near-infrared region, suggesting that the naphthalene ring is perturbed by the adjoining chelate rings as if these moieties formed a fused aromatic ring system.

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