Iron coordination chemistry with tetra-, penta- and hexadentate bispidine-type ligands
作者:Heidi Börzel、Peter Comba、Karl S Hagen、Yaroslaw D Lampeka、Achim Lienke、Gerald Linti、Michael Merz、Hans Pritzkow、Lyudmyla V Tsymbal
DOI:10.1016/s0020-1693(02)01100-3
日期:2002.9
one or two co-ligands, and all structures with the tetradentate bispidine ligand are asymmetrical with respect to the two tertiary amine donors, with short FeN1 and long FeN2 bonds (N1: position 3, N2: position 7). This is the same structural type as found for the Jahn–Teller labile copper(II) compounds, the manganese(II) and chromium(III) complexes but different from copper(I), zinc(II) and some
描述了具有两个叔胺和两个,三个或四个附加供体(吡啶,酚盐或醇盐;联吡啶= 3,7-二氮杂双环[3.3.1]壬酮)的四齿,五齿和六齿联吡啶配体的合成2,6; 2,4,7; 2,3,4; 2,3,4,7)及其六配位铁(II)配合物。晶体结构分析表明,所有的配合物是六配位,用一个或两个共配体,并与四齿bispidine所有结构的配体是不对称的相对于所述两个叔胺供体,具有短FeN 1和长FeN 2个键(N 1:位置3,N 2:位置7)。该结构类型与Jahn-Teller不稳定的铜(II)化合物,锰(II)和铬(III)配合物相同,但不同于铜(I),锌(II)和某些钴(II)配合物与MN 1 ≥MN 2。N 2处的其他供体会改变结构,但不会导致其他结构类型的改变;在N个附加供体1引线与MN结构1 ~MN 2。溶液研究(NMR,UV-Vis,电化学,磁性)表明,共配体可能被溶剂取代,反式为N