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Synthesis and characterization of hexa-coordinated Sn(IV) complexes of meso-aryl dipyrrins.

Synthesis and characterization of hexa-coordinated Sn(IV) complexes of meso-aryl dipyrrins.

Dalton transactions (Cambridge, England : 2003) (2013-03-20)

Ritambhara Sharma, Avijit Ghosh, Benedikt Wolfram, Martin Bröring, Mangalampalli Ravikanth

摘要

Our successful synthesis of the first examples of Sn(IV) complexes of meso-aryl dipyrrins is reported. Sn(IV) dipyrrins are synthesized by treating meso-aryl dipyrrins with readily available SnCl2·2H2O in pyridine at reflux temperature and isolated as pure complexes by recrystallization. The X-ray structure revealed that the complex is hexa-coordinated and the Sn(IV) ion is coordinated to two dipyrrin units and two chlorides with overall appearance of a butterfly like structure. The complexes are stable in solution and characterized by spectral and electrochemical techniques.

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