Chiral dinuclear complexes with tetradentate ligands derived from (R)-(+)-1,1 '-binaphthyl-2,2 '-diamine

摘要

Novel chiral dinuclear complexes of Delta,Delta-[Ni-2(II)((R)-Hsalbn)((R)-salbn)(MeCN)(2)](ClO4) center dot 2MeCN (1) and Delta,Delta-[Fe-2(III)((R)-salbn)(2)(OMe)(2)] center dot Et2O center dot H2O (2) ((R)-H(2)salbn = N,N'-disalicylidene-(R)-1,1'-binaphthyl-2,2'-diaminate) were prepared. X-ray crystal structure analyses revealed that both complexes crystallized in chiral space groups of P2(1)2(1)2(1) and P4(1)2(1)2, respectively. In 1, two Ni(II) ions with Delta configuration are bridged by phenoxo groups of (R)-salbn, while in 2 mu(2)-methoxo ions bridge two Fe(III) ions leading to the Delta absolute configuration. Dc magnetic susceptibility measurements suggested antiferromagnetic interactions operative in 1 and 2.