The Crystal Water Affecting the 2Eg→4A2g Relaxation in Tris(oxalato)chromate(III) Complexes

Takuhiro Otsuka; Akiko Sekine; Yuji Ohashi; Youkoh Kaizu

doi:10.1246/bcsj.65.3378

journal article Dec 01, 1992

The Crystal Water Affecting the 2Eg→4A2g Relaxation in Tris(oxalato)chromate(III) Complexes

Takuhiro Otsuka Akiko Sekine

Yuji Ohashi Youkoh Kaizu

Bulletin of the Chemical Society of Japan Vol. 65 No. 12 pp. 3378-3385 · Oxford University Press (OUP)

View at Publisher Save 10.1246/bcsj.65.3378

Abstract

Abstract
The measurements of absorption and luminescence spectra and luminescence decay are carried out on pure crystals of Na3[Cr(ox)3]·xH2O (ox2− = C2O42−) (x = 5 or 4) and Li3 [Cr(ox)3]·yH2O (y = 6 or 5). In sodium salt, dehydration of one crystal water (x = 4) causes the luminescence intensity to be about thirty times larger and the lifetime to be about thirty times longer than those of the most hydrated crystal (x = 5) while the opposite trend is obtained in lithium salt. However, in both salts, no change of the position of luminescence maximum is observed by the dehydration of one crystal water from the most hydrated crystals. Comparing these results with X-ray crystallographic analyses shows that a crystal water located near the oxalato-oxygen atom, which is coordinated to Cr3+ ion, affects the 2Eg→4A2g (all in Oh notation) relaxation of [Cr(ox)3]3− complexes in the pure crystal.

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Details

Published: Dec 01, 1992
Vol/Issue: 65(12)
Pages: 3378-3385
License: View

Authors

T

Takuhiro Otsuka

Department of Chemistry, Tokyo Institute of Technology

A

Akiko Sekine

Department of Chemistry, Tokyo Institute of Technology

Y

Yuji Ohashi

Department of Chemistry, Tokyo Institute of Technology

Y

Youkoh Kaizu

Department of Chemistry, Tokyo Institute of Technology

Cite This Article

Takuhiro Otsuka, Akiko Sekine, Yuji Ohashi, et al. (1992). The Crystal Water Affecting the 2Eg→4A2g Relaxation in Tris(oxalato)chromate(III) Complexes. Bulletin of the Chemical Society of Japan, 65(12), 3378-3385. https://doi.org/10.1246/bcsj.65.3378

The Crystal Water Affecting the 2Eg→4A2g Relaxation in Tris(oxalato)chromate(III) Complexes

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