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Non-linear optical properties of the mixed-metal mixed-chalcogen clusters [Fe2(CO)6{μ-SeC(Ph)=C(Se)}{(OEt)C=Cr(CO)5}] and [Fe2(CO)6Se2{μ-(CO)3Cr(η5-C5H(CH2Ph)(Ph)(OEt)}]

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Title Non-linear optical properties of the mixed-metal mixed-chalcogen clusters [Fe2(CO)6{μ-SeC(Ph)=C(Se)}{(OEt)C=Cr(CO)5}] and [Fe2(CO)6Se2{μ-(CO)3Cr(η5-C5H(CH2Ph)(Ph)(OEt)}]
 
Creator PHILIP, REJI
RAVINDRA KUMAR, G
MATHUR, PRADEEP
GHOSH, SANJUKTA
 
Subject nonlinear optics
optical limiters
polarisability
absorption coefficients
 
Description We report studies of the third-order optical non-linearity of the newly synthesized butterfly-shaped mixed-metal mixed-chalcogen clusters [Fe2(CO)6{μ-SeC(Ph)=C(Se)}{(OEt)C=Cr(CO)5}] and [Fe2(CO)6Se2{μ-(CO)3Cr(η5-C5H(CH2Ph)(Ph)(OEt)}] using 532 nm, 6 ns laser pulses. Their effective non-linear absorption coefficient and non-linear index intensity coefficient are measured by the z-scan technique from which the corresponding cubic hyperpolarizabilities are evaluated. The obtained values indicate a high non-linearity comparable to some of the best values reported previously for cluster compounds. Both compounds show strong optical limiting, and the second compound exhibits non-linear scattering. Their photostability is superior to many of the previously reported highly non-linear clusters.
 
Publisher Elsevier
 
Date 2009-03-04T11:37:17Z
2011-11-25T18:28:08Z
2011-12-26T13:06:54Z
2011-12-27T05:54:52Z
2009-03-04T11:37:17Z
2011-11-25T18:28:08Z
2011-12-26T13:06:54Z
2011-12-27T05:54:52Z
1999
 
Type Article
 
Identifier Chemical Physics Letters 313(5-6), 719-724
0009-2614
http://dx.doi.org/10.1016/S0009-2614(99)01064-7
http://hdl.handle.net/10054/855
http://dspace.library.iitb.ac.in/xmlui/handle/10054/855
 
Language en