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fac-Cobalt(III)-azido complexes derived from substituted pyridyl-based tridentate amines |
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| Authors: | Salah S Massoud Mark Spell Zadid K Haq Franz A Mautner |
| Institution: | 1. Department of Chemistry, University of Louisiana at Lafayette, P.O. Box 44370, Lafayette, LA, 70504, USA 2. Department of Chemistry, Louisiana State University, Choppin Hall, Baton Rouge, LA, 70803, USA 3. Institut für Physikalische and Theoretische Chemie, Technische Universit?t Graz, 8010, Graz, Austria |
| Abstract: | Four new mononuclear triazido-cobalt(III) complexes Co(L 1/2/4 )(N3)3] and Co(L 3 )(N3)3]·CH3CN where L 1 = (2-pyridyl)-2-ethyl]-(2-pyridylmethyl)-N-methylamine, L 2 = (2-pyridyl)-2-ethyl]-6-methyl-(2-pyridylmethyl)]-N-methylamine, L 3 = (2-pyridyl)-2-ethyl]-3,5-dimethyl-4-methoxy-(2-pyridylmethyl)]-N-methylamine, and L 4 = (2-pyridyl)-2-ethyl]-3,4-dimethoxy-(2-pyridylmethyl)]-N-methylamine, respectively, were synthesized and structurally characterized. The four complexes were characterized by elemental microanalyses, IR and UV–VIS spectroscopy and X-ray single crystal crystallography. The complexes display two strong IR bands over the frequency region 2,020–2,050 cm?1 assigned for the asymmetric stretching frequency, νa(N3) of the coordinated azides indicating facial geometry. The molecular structure determinations of the complexes were in complete agreement with fac-Co(L)(N3)3] conformation in distorted octahedral Co(III) environment. |
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