Hetero-bimetallic Yttrium(lll)-Rhenium(V)(salen) Tetranuclear Complex : Synthesis and Crystal Structure.
Résumé
Single crystals of a Y(III)-Re(V)(salen) tetranuclear complex have been obtained by the reaction between the [ReO(salen)(OMe)] and Y(hfac)3 Æ 2H2O compounds (where salen2 is the N,N0-ethan-1,2-diylbis(salicylidenamine) ligand and hfac is the 1,1,1,5,5,5-hexafluo- roacetylacetonate ligand) . This crystallizes in the triclinic, space group P1 (No. 2). The lattice parameters are a = 12.222(5)A ˚ , b = 12.783(5)A ˚ , c = 15.222(4) A ˚ , a = 86.276(5), b = 82.220(5), c = 82.396(5), V = 2332.9(15) A ˚ 3 with Z = 2. The crystallographic structure of the {[Re(salen)]2O3 [Y(hfac)3(H2O)]2}(CHCl3)2(CH2Cl2)2 tetranuclear complex is composed of two terminal Y(hfac)3(H2O) moieties bridged by the linear central {[ReO(salen)]2O} entity.