TY - JOUR
T1 - Reactions of sterically congested secondary silanes with iron carbonyls. Formation of μ-silylene complexes Fe2(CO)8(μ-SiR2) (R = mesityl and O(2,6-iPr2C6H3))
AU - Tobita, Hiromi
AU - Shinagawa, Isao
AU - Ohnuki, Setsuko
AU - Abe, Machiko
AU - Izumi, Hiroshi
AU - Ogino, Hiroshi
N1 - Funding Information:
This work was supported by a Grant-in-Aid for Special Project ResearchN o. 04241102fr om the Ministry of Education,S ciencea nd Culture, and a Grant-in
PY - 1994/6/28
Y1 - 1994/6/28
N2 - Reaction of dimesitylsilane with enneacarbonyldiiron in hot hexane yielded octacarbonyl(μ-dimesitylsilylene)diiron as thermally stable yellow crystals, for which the average bond lengths determined by X-ray crystallography are FeFe 2.721(2) and FeSi 2.404(2) Å, and the 29Si NMR chemical shift of the bridging silylene is 145.1 ppm. Similarly, the reaction of bis(2,6-diisopropylphenoxy)silane with dodecacarbonyltriiron in refluxing toluene afforded octacarbonyl{μ-bis(2,6-diisopropylphenoxy)silylene}di-iron, whereas a similar treatment of the slightly bulkier bis(2,6-di-tert-butylphenoxy)silane with enneacarbonyldiiron or dodecacarbonyltriiron did not give the corresponding μ-silylene complex.
AB - Reaction of dimesitylsilane with enneacarbonyldiiron in hot hexane yielded octacarbonyl(μ-dimesitylsilylene)diiron as thermally stable yellow crystals, for which the average bond lengths determined by X-ray crystallography are FeFe 2.721(2) and FeSi 2.404(2) Å, and the 29Si NMR chemical shift of the bridging silylene is 145.1 ppm. Similarly, the reaction of bis(2,6-diisopropylphenoxy)silane with dodecacarbonyltriiron in refluxing toluene afforded octacarbonyl{μ-bis(2,6-diisopropylphenoxy)silylene}di-iron, whereas a similar treatment of the slightly bulkier bis(2,6-di-tert-butylphenoxy)silane with enneacarbonyldiiron or dodecacarbonyltriiron did not give the corresponding μ-silylene complex.
KW - Carbonyl
KW - Iron
KW - Secondary silanes
KW - Silicon
KW - X-ray diffraction
KW - μ-Silylene
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U2 - 10.1016/0022-328X(94)80119-3
DO - 10.1016/0022-328X(94)80119-3
M3 - Article
AN - SCOPUS:0039697678
VL - 473
SP - 187
EP - 193
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
SN - 0022-328X
IS - 1-2
ER -