Synthesis and crystal structure of bis(2-aminopyridinium) tetrachlorocuprate(II)

Department of Chemistry, University College of Science and Technology, University of Calcutta,

92, A. P. C. Road, Kolkata-700 009, India

E-mail : ghosh_59@yahoo.com

Department of Physics, University College of Science and Technology, University of Calcutta,

92. A. P. C. Road, Kolkata-700 009. India

Manuscript received 13 December 2002. accepted 17 June 2003

The synthesis and crystal structure of orange 2-aminopyridinium tetrachlorocuprate(ll), (C₅H₇N₂)₂CuCI₄, have been reported. The compound crystallizes in \(P\bar{1}\) space group and contains discrete tetrahedral \(CuCl_4^{2-}\) species and 2-aminopyridinium cations. An extensive molecular association through the hydrogen bonding involving all the chlorine atoms is also observed in the crystallizing environment of the title compound.