TY - JOUR
T1 - The X-ray crystal structures of the mononuclear silyllithium species Li(THF)3SiPh3 and Li(THF)3Si(SiMe3)3
AU - Dias, H. V.R.
AU - Olmstead, M. M.
AU - Ruhlandt-Senge, K.
AU - Power, P. P.
N1 - Funding Information:
We thank the National Science Foundation for nancial support.
PY - 1993/12/14
Y1 - 1993/12/14
N2 - The organosilyllithium tetrahydrofuranate complexes Li(THF)3SiPh3 (1) and Li(THF)3Si(SiMe3)2 (2) were crystallized and structurally characterized by X-ray crystallography. Both compounds possess monomeric structures with relatively long (ca. 2.67 Å) LiSi bonds. In addition, the lithium-bound silicons have distorted tetrahedral geometries with low CSiC and SiSiSi angles of 101.3° (av.) (1) and 102.6° (av.) (2). Compound 1, which has not been reported as an isolated species, has been characterized by 1H, 7Li, 29Si NMR and IR spectroscopy. These studies indicate that the LiSi bond remains intact in THF solution at -80°C.
AB - The organosilyllithium tetrahydrofuranate complexes Li(THF)3SiPh3 (1) and Li(THF)3Si(SiMe3)2 (2) were crystallized and structurally characterized by X-ray crystallography. Both compounds possess monomeric structures with relatively long (ca. 2.67 Å) LiSi bonds. In addition, the lithium-bound silicons have distorted tetrahedral geometries with low CSiC and SiSiSi angles of 101.3° (av.) (1) and 102.6° (av.) (2). Compound 1, which has not been reported as an isolated species, has been characterized by 1H, 7Li, 29Si NMR and IR spectroscopy. These studies indicate that the LiSi bond remains intact in THF solution at -80°C.
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U2 - 10.1016/0022-328X(93)83334-R
DO - 10.1016/0022-328X(93)83334-R
M3 - Article
AN - SCOPUS:0002977282
VL - 462
SP - 1
EP - 6
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
SN - 0022-328X
IS - 1-2
ER -