Heterobimetallic (acac)2Co(ox)Ln(HBpz3)2 complexes: synthesis, characterization and spectroscopic properties
摘要:
The syntheses and characterizations of a series of complexes, [(acac)(2)Co(ox)Ln(HBpz(3))(2)] (Co(ox)Ln, Ln = Sm to Lu) is reported here. Cobalt(III) complexes, Co(ox)Ln, have been compared with chromium(III) complexes, Cr(ox)Ln due to their analogous features in view of structure and spectroscopy. NIR CD spectrum of [(acac)(2)Co(ox)Yb(HBpz(3))(2)] is examined in comparison with that of the related complexes to reveal the stereospecific formation with configurational chirality around Yb-III ion. (C) 2003 Elsevier B.V. All rights reserved.