Organotin complexes of 5-arylazo-8-quinolinols |
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| Authors: | TSBasu Baul TK Chattopadhyay B Majee |
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| Institution: | Department of Chemistry, University of North Bengal, Darjeeling—734430, India |
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| Abstract: | 5-Phenylazo-8-quinolinol (LH) forms di/tri-organotin complexes similar to the well-known organotin oxinates, but 5-(2′-carboxyphenylazo)-8-quinolinol (L′HH′) forms three classes, viz., the carboxylate derivatives of the type R3SnL′H, the quinolinolates of the type R2Sn(L′SnR′3)2 and R3SnL′SnR′3. The carboxylates, R3SnL′H, are 5-coordinate complexes similar to other triorganotin arylazobenzoates and the quinolinolates, R2Sn (L′H′)2, closely resemble the corresponding organotin oxinates. Unlike the oxinates, R2Sn(L′H′)2 type complexes can, be made water soluble by treatment with aqueous NaHCO3 whereby R2Sn(L′Na)2 type complexes are formed. The binuclear complexes of the type R2Sn(L′SnR′3)2 contain 5- and 6-coordinate organotin groups in the same ligand. |
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| Keywords: | Author to whom correspondence is to be addressed |
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