Mono- and Dinuclear triphos-Metal(II)-Complexes with Nitriles as Co-Ligands
Susanne Mann, Gottfried Huttner*, Laszlo Zsolnai
†, Katja Heinze, Volker Jacob, Björn Antelmann, Alexander Driess, and Berthold Schiemenz
Department of Inorganic Chemistry, University of Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
Reprint requests to Prof. Dr. G. Huttner. Fax: (internat.) +49(0)6221-545707.
E-mail: g.huttner@indi.aci.uni-heidelberg.de
Z. Naturforsch.55 b,638Ð650 (2000); received March 8, 2000 triphos-Metal-Templates, Cobalt, Iron
The triphosligand CH3C(CH2PPh2)3reacts with Co(BF4)2(aq) or Fe(BF4)2 (aq) in the presence of nitriles RCN to produce the pentacoordinate [triphosCo(NCR)2](BF4)2 (1) or the hexacoordinate [triphosFe(NCR)3](BF4)2 (2). With α,ω-dinitriles NC-X-CN dinuclear compounds [triphosFe(NC-X-CN)3Fetriphos](BF4)4(X = (CH2)3(3a) X =o-C6H4(3b) are formed. The compound [triphosFe((CH3)2C=C(CN)2)3Fetriphos](PF6)4(3c) is obtained from FeCl2by addition of thetriphosligand, the dinitrile and NaPF6.
All compounds are characterised by the usual analytical techniques including X-ray analy- ses. It is observed that the quadruply positively charged compounds3tend to associate the respective anions in pockets formed by the three segments of the Fe(NC-X-CN)3Fe bridg- ing units.
