Syntheses of copper(I)cis-1,3,5-tri-iminocyclohexane complexes.
Copper(I) complexes of the ligand cis-1,3,5-tris(cinnamylideneamino)cyclohexane (L) have been prepared from a versatile precursor complex, [Cu(I)(L)NCMe]BF4, which incorporates a labile acetonitrile ligand that can be exchanged to give a range of new Cu(L)X complexes (where X = Cl, Br, NO2, SPh). 1H NMR spectra and X-ray structures of the Cl, Br and NO2 complexes show L coordinated in a symmetric fashion about the copper centre. The complexes have been further characterised using UV/Visible spectroscopy and cyclic voltammetry. CuLCl shows an electrochemically reversible Cu(I/II) redox couple at 0.51 V (vs. Ag/AgCl) while the CuLNO2 complex shows an analogous quasi-reversible wave at 0.41 V (vs. Ag/AgCl).
Department of Chemistry, University of York, Heslington, York, UK YO10 5DD.
Alison K
AK
Nairn
Stephen J
SJ
Archibald
Rajiv
R
Bhalla
Clive J
CJ
Boxwell
Adrian C
AC
Whitwood
Paul H
PH
Walton
D003300:Copper / Q000737:chemistry*; D003514:Cyclohexylamines / Q000737:chemistry*; D004566:Electrodes; D007097:Imines / Q000737:chemistry*; D008024:Ligands; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D012680:Sensitivity and Specificity; D013056:Spectrophotometry, Ultraviolet / Q000379:methods
C521719:1,3,5-tris(cinnamylideneamino)cyclohexane; D003514:Cyclohexylamines; D007097:Imines; D008024:Ligands; D009942:Organometallic Compounds; D003300:Copper