MOLECULAR RECOGNITION OF AN ORGANIC-MOLECULE THROUGH FORMING A CO-CRYSTAL COMPLEX - SYNTHESIS AND CRYSTAL-STRUCTURE OF [CDPHEN(3)](BF4)(2)CENTER-DOT-2CNA

The co-crystal 1:2 adduct [Cdphen(3)](BF4)(2) . CNA (1) (phen = phenan throline-N-1,N-10 and CNA = 4-chloro-2-nitro-benzenamine) has been pre pared by crystallization of tetrafluoroborate)tn's(phenanthroline)cadm ium(II), [Cdphen(3)](BF4)(2), in the presence of 4-chloro-2-nitrobenze namine. Single crystal X-ray analysis revealed that the cadmium(II) io n exhibits a distorted octahedral geometry with Cd-N bond distances of 2.337(3)-2.374(3)Angstrom. The organic guest molecules are packed wit h the plane of the molecules parallel to the phenanthroline ligands. B oth intra-and intermolecular hydrogen bonding is important in the comp lex.