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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/9619

Title: Effects of metal substitution on third-order optical non-linearity of porphyrin macrocycle
Authors: KANDASAMY, K
SHETTY, SJ
PUNTAMBEKAR, PN
SRIVASTAVA, TS
KUNDU, T
SINGH, BP
Keywords: nonlinear optics
excited-state
3rd-order
complexes
metalloporphyrins
luminescence
relaxation
copper
Issue Date: 1999
Publisher: JOHN WILEY & SONS LTD
Citation: JOURNAL OF PORPHYRINS AND PHTHALOCYANINES, 3(2), 81-86
Abstract: The effects of axial ligands in Sn(IV)-substituted 5,10,15,20-tetrakis [4-(carboethoxymethyleneoxy)phenyl]porphyrin and divalent transition metal substitution in 5,10,15,20-tetraphenylporphyrin on the second molecular hyperpolarizability (gamma) at 802 nm were studied using the Z-scan technique. A significant increase in gamma for divalent metal ions is observed with decreasing d-shell occupancy. In the case of the tetravalent metal-substituted porphyrin a dramatic enhancement of gamma is seen when a strongly electronegative axial ligand such as I-2 is attached to the metal ion. A plausible explanation for the observed trend of gamma has been sought in terms of metal-ligand interaction. Copyright (C) 1999 , Ltd.
URI: http://dx.doi.org/10.1002/(SICI)1099-1409(199902)3:2<81::AID-JPP107>3.0.CO;2-0
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9619
http://hdl.handle.net/10054/9619
ISSN: 1088-4246
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