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Silsesquioxane Chemistry. 12 [1] Preparation and Complexation of a Novel Silsesquioxanyl Phosphine Ligand
Author(s) -
Fei Zhaofu,
Schmutzler Reinhard,
Edelmann Frank T.
Publication year - 2003
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200390056
Subject(s) - phosphine , chemistry , norbornadiene , ligand (biochemistry) , silsesquioxane , silanol , derivative (finance) , medicinal chemistry , tris , disiloxane , yield (engineering) , stereochemistry , polymer chemistry , organic chemistry , catalysis , biochemistry , receptor , economics , financial economics , polymer , materials science , metallurgy
The reaction of the monofunctional closo ‐silsesquioxane silanol derivative Cy 7 Si 8 O 12 OH ( 3 , Cy = c ‐C 6 H 11 ) with tris(dimethylamino)phosphine afforded the novel silsesquioxanyl phosphine ligand Cy 7 Si 8 O 12 OP(NMe 2 ) 2 ( 4 ) in virtually quantitative yield. The complexes [Cy 7 Si 8 O 12 OP(NMe 2 ) 2 ] 2 PtCl 2 ( 5 ) and [Cy 7 Si 8 O 12 OP(NMe 2 ) 2 ] 2 Mo(CO) 4 ( 6 ) were obtained in excellent yields upon treatment of 4 with (COD)PtCl 2 (COD = 1, 5‐cyclooctadiene) and (NBD)Mo(CO) 4 (NBD = norbornadiene), respectively. An attempted preparation of the bis(silsesquioxanyl)phosphine (Cy 7 Si 8 O 12 O) 2 P(NMe 2 ) led to the formation of the known disiloxane derivative (Cy 7 Si 8 O 12 ) 2 O ( 7 ), instead.