Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/91430
Title: Crystal structure and non-linear optical properties of a novel half-open cubane-like cluster [Et4N]3[WOS3(CuI)3(μ 2-I)] · H2O
Authors: Hou, H.
Liang, B.
Xin, X.
Yu, K.
Ge, P.
Ji, W. 
Shi, S. 
Issue Date: 7-Jul-1996
Source: Hou, H.,Liang, B.,Xin, X.,Yu, K.,Ge, P.,Ji, W.,Shi, S. (1996-07-07). Crystal structure and non-linear optical properties of a novel half-open cubane-like cluster [Et4N]3[WOS3(CuI)3(μ 2-I)] · H2O. Journal of the Chemical Society - Faraday Transactions 92 (13) : 2343-2346. ScholarBank@NUS Repository.
Abstract: The title compound [NEt4]3[WOS3(CuI)3(μ 2-I)]·H2O has been synthesized by the reaction of (NH4)2WO2S2, CuI and Et4NI. Single-crystal X-ray diffraction data show that the anionic cluster [WOS3(CuI)3(μ2-I)]3- has a half-open cage structure. Nonlinear optical (NLO) properties of the cluster were investigated with a pulsed laser at 532 nm. The cluster exhibits strong NLO absorption and a self-defocusing effect (effective non-linear absorption coefficient, n2 eff = -5.0 × 10-8 m2 W-1; effective nonlinear refractive index, α2 eff = 1.0 × 10-10 mW-1, when measured for a 2.3 × 10-4 mol dm-3 acetonitrile solution). The corresponding effective NLO susceptibility [χeff (3)] of the cluster is 2.6 × 10-10 esu. The NLO properties of the cluster were compared with those of two analogues, [NEt4]3[WOS3(CuBr)3(μ 2-Br)] · 2H2O and [Et4N]3[MoOS3(μ2-Br)] · 2H2O.
Source Title: Journal of the Chemical Society - Faraday Transactions
URI: http://scholarbank.nus.edu.sg/handle/10635/91430
ISSN: 09565000
Appears in Collections:Staff Publications

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