ChemInform Abstract: Ring Structure Formation in Transition-Metal Nitrido Chlorides by Donor—Acceptor Formation.

✍ Scribed by W. W. SCHOELLER; A. SUNDERMANN

• Publisher: John Wiley and Sons
• Year: 2010
• Weight: 30 KB
• Volume: 29
• Category: Article
• ISSN: 0931-7597
• DOI: 10.1002/chin.199836001

✦ Synopsis

Ring Structure Formation in Transition-Metal Nitrido Chlorides by Donor-Acceptor Formation.

-According to quantum chemical calculations, nitrido chlorides constituted from d 6 transition metals form ring structures which are best described as weak donor-acceptor complexes between the lone pair at nitrogen and the empty d orbitals at the metal. The stabilities of the ring structures increase in the order Cr ¡ Mo ¡ W. A comparison of several homologous oligomers of NMoCl 3 shows maximum stability for the tetramer (I). The particular stability of this tetramer is due to a perfect alignment of the nitrogens between two metal centers. Various quantum chemical methods are used for the evaluation of the ring structures. -(SCHOELLER, W. W.;