Luminescence change by the solvent of crystallization, solvent reorganization, and vapochromism of neutral dicyanoruthenium(II) complex in the solid state

Abe Taichi Abe, Takayoshi Suzuki, Kazuteru Shinozaki

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

The "solvent effect" on the solid-state luminescence of a neutral complex, [Ru(dbb)2(CN)2] (dbb = 4, 40-di-tert-butyl- 2, 20-bipyridine), was presented. The crystals of this complex showed a variety of luminescence color from orange to dark-red, depending on the acceptor number of the solvent included in the crystal as a solvent of crystallization. The luminescence change was very similar to the solvatochromism in solution, which was attributed to the local donor-acceptor interaction between the CN group and the solvent molecules. The dynamic shift observed in the transient emission spectrum of the crystalline powder was accounted for by the solvent molecule reorganization. X-ray crystallography of [Ru(dbb)2(CN)2] 3 3(CH3)2CO showed the complex molecule having an approximate C2 symmetry and very weak interactions between the acetone molecules and the CN groups. A three-dimensional network constructed by acetone molecules was observed in the hydrophobic space consisting of t-butyl groups in dbb ligands. A thin film of the complex showed vapochromic behavior such that the luminescence changed depending on the solvent of crystallization. This suggests a capability for organic molecule discrimination using the complex in the solid state.

Original languageEnglish
Pages (from-to)1794-1800
Number of pages7
JournalInorganic Chemistry
Volume49
Issue number4
DOIs
Publication statusPublished - Feb 15 2010

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Crystallization
Luminescence
crystallization
luminescence
solid state
Molecules
molecules
Acetone
acetone
Crystals
X ray crystallography
Powders
crystallography
crystals
discrimination
emission spectra
Crystalline materials
Ligands
Color
color

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry

Cite this

Luminescence change by the solvent of crystallization, solvent reorganization, and vapochromism of neutral dicyanoruthenium(II) complex in the solid state. / Taichi Abe, Abe; Suzuki, Takayoshi; Shinozaki, Kazuteru.

In: Inorganic Chemistry, Vol. 49, No. 4, 15.02.2010, p. 1794-1800.

Research output: Contribution to journalArticle

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