- 作者: Shashank Mishra, Upendra M. Tripathi, Anirudh Singh* and Ram C. Mehrotra
- 作者服務機構: Department of Chemistry, University of Rajasthan, Jaipur-302 004, India
- 中文摘要: Hexaisopropoxoniobates/tantalates of lathanides of the type [Ln{(m-Opri)2M(Opri)4}3] (M = Nb, Ln = Y(1), La(2), Nd(3), Er(4), Lu(5); M = Ta, Ln = Y(6), Gd(7)) have been prepared by the reactions of LnCl3.3PriOH with three equivalents of KM(Opri)6 in benzene. Reactions in 1:2 molar ratio of LnCl3.3PriOH with Kta(Opri)6 yielded derivatives of the type [{(PriO)3Ta(m-Opri)3}Ln{(m-Opri)2Ta(Opri)4}(Cl)] (Ln = Y(8), Gd(9)), which on interactions with one equivalent of KOPri afforded [{(PriO)3Ta(m-Opri)3}Ln {(m-Opri)2Ta(Opri)4}(Opri)] (Ln = Y(10), Gd(11)). All these derivatives have been characterized by elemental analyses and molecular weight measurements as well as by their spectroscopic [IR, 1H and 13C NMR (Y, La, Lu), electronic (Nd, Er)] studies. 89Y NMR studies have also been carried out on derivatives (6), (8), and (10).
- 英文摘要: --
- 中文關鍵字: Heterobimetallic alkoxides; Alkoxometallates; Hexaisopropoxoniobates/tantalates.
- 英文關鍵字: Heterobimetallic alkoxides; Alkoxometallates; Hexaisopropoxoniobates/tantalates.