Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science

Synthesis, Characterization, and Crystal Structures of [Cu(ca2en)(PPh3)(X)] (X = Cl, Br, I, NCS, N3) Complexes

Guido Kickelbick, Mehdi Amirnasr, Aliakbar D. Khalaji and Saeed Dehghanpour

Australian Journal of Chemistry 56(4) 323 - 328
Published: 28 April 2003


Novel mixed-ligand copper(I) complexes, [Cu(ca2en)(PPh3)X] (ca2en = N,N′-bis(trans-cinnamaldehyde)-1,2-diaminoethane, X = Cl (1), Br (2), I (3), NCS (4), N3 (5)), have been synthesized and characterized by 1H and 31P NMR spectroscopy, infrared spectroscopy, and elemental analyses. The single crystal X-ray structures of complexes (1)–(5) have been determined. All five complexes reveal discrete monomeric structures in the crystal. The geometry around the copper atom is in each case a distorted tetrahedron, with the distortion most pronounced in (3). The NCS and N3 are coordinated as terminal ligands and the NCS ligand is N-bonded in (4). Dynamic 31P NMR studies show partial bond breaking in solution.

© CSIRO 2003

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