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Title: Synthesis and structural characterization of potassium coordination polymers based on a copper-bis(dithiolato) complex: Role of coordinating solvents and counter cation
Authors: Bolligarla, Ramababu
Tripuramallu, Bharat Kumar
Sreenivasulu, Vudagandla
Das, Samar K
Keywords: Coordination Chemistry
Coordination polymers
Metal-organic frameworks
Crystal structures
Counter cation
Coordinating solvents
Issue Date: Sep-2011
Publisher: NISCAIR-CSIR, India
Abstract: We have synthesized two new potassium metal coordination polymers {[K(CH<sub>3</sub>COCH<sub>3</sub>)<sub>3</sub>][Cu(btdt)<sub>2</sub>]}<sub>n </sub>(<b style="">1</b>) and {[K(CH<sub>3</sub>CN)<sub>2</sub>][Cu(btdt)<sub>2</sub>]}<sub>n</sub> (<b style="">2</b>) of diverse dimensionality based on a copper coordination complex [Cu<sup>III</sup>(btdt)<sub>2</sub>]<sup>1−</sup> ({btdt}<sup>2–</sup> = 2,1,3-benzenethiadiazole-5,6-dithiolate). Recrystallization of the dark brown solid, obtained from the reaction mixture of H<sub>2</sub>btdt, KOH and CuCl<sub>2</sub>·2H<sub>2</sub>O in MeOH, from the coordinating solvents acetone and acetonitrile results in the formation of 3-D and 2-D extended networks in compounds (<b style="">1</b>) and (<b style="">2</b>) respectively. The crystal structures of (<b style="">1</b>) and (<b style="">2</b>) have been discussed in comparison with those of recently reported sodium coordination polymers {[Na(CH<sub>3</sub>OH)<sub>4</sub>][Au(btdt)<sub>2</sub>]}<sub>n </sub>(<b style="">3</b>), [Na(DMF)<sub>2</sub>][Au(btdt)<sub>2</sub>]}<sub>n</sub> (<b style="">4</b>) and {[Na(CH<sub>3</sub>CN)<sub>2</sub>][Au(btdt)<sub>2</sub>]}<sub>n</sub> (<b style="">5</b>). Compounds (<b style="">1</b>) and (<b style="">2</b>) have additionally been characterized by routine spectroscopy including elemental analyses.
Description: 1410-1417
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.50A(09-10) [September-October 2011]

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