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Synthesis and Characterization of Novel Titanium, Germanium, and Tin Silazane Complexes Bearing a Cyclohexasilazanetriido Ligand
Author(s) -
Lehnert Christian,
Wagler Jörg,
Kroke Edwin,
Roewer Gerhard
Publication year - 2007
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200601007
Subject(s) - chemistry , tin , titanium tetrachloride , germanium , titanium , ligand (biochemistry) , triethylamine , metal , tetrachloride , crystallography , crystal structure , nitrogen atom , polymer chemistry , inorganic chemistry , medicinal chemistry , ring (chemistry) , organic chemistry , biochemistry , receptor , silicon
Novel heterometallic silazane complexes were synthesized by the reaction of 1‐lithio‐2,2,4,4,6,6‐hexamethylcyclotrisilazane Li(HMCTS)H 2 with the tetrachloride salts of titanium and germanium as well as by the reaction of 1,1,3,3,5,5‐hexamethylcyclotrisilazane H 3 (HMCTS) with tin tetrachloride and excess triethylamine. The products [H 3 (DMCHS)TiCl] ( 1 ), [H 3 (DMCHS)GeCl] ( 2 ), and [H 3 (DMCHS)SnCl] ( 3 ) {H 3 (DMCHS) = 2,2,4,4,6,6,8,8,10,10,12,12‐dodecamethylcyclohexasilazane‐1,5,9‐triido} were characterized by 1 H‐, 13 C‐, 14 N‐, and 29 Si NMR spectroscopy, elemental analyses and single‐crystal X‐ray structure analyses. The complexes have a surprising and interesting structure, that of a new dodecamethylcyclohexasilazane system with the Ti, Ge, or Sn atom in the center. These metal atoms are coordinated by one chlorine atom and three nitrogen atoms. The metal centers are part of three six‐membered hetero‐silazane rings. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)