TY - JOUR
T1 - Synthesis and photolysis of the five possible isomeric phenyl-hexamethyltrisilyl-(cyclopentadienyldicarbonyliron) complexes
T2 - (η5-C5H5) Fe(CO)2 Si3 Me6Ph
AU - Hernandez, Carlos
AU - Sharma, Hemant K.
AU - Pannell, Keith H.
PY - 1993/12/14
Y1 - 1993/12/14
N2 - Isomeric phenyl-hexamethyltrisilyliron complexes of the type (η5-C5H5)Fe(CO)2Si3Me6Ph, FpSi3Me6Ph (I-V) have been synthesized, characterized, and photolysed in an inert solvent. Separate photolyses of the linear Fp complexes, e.g. FpSiMe2SiMe2 SiMe2Ph (III), result in the transient formation of intermediate isomeric 2-substituted trisilyl Fp complexes, FpSiMe(SiMe3) (SiMe2 Ph) (IV) and FpSiPh(SiMe3)2 (V) which photodeoligomerize to FpSiMe3 and FpSiMe2Ph via the intermediacy of Fp disilyl complexes. The product distribution from the photolyses of the Fp complexes is in accord with a mechanism involving equilibrating silyl(silylene) iron complexes. The two branched silyl complexes, FpSiPh(SiMe3)2 and FpSiMe(SiMe3) (SiMe2Ph), isomerize prior to formation of the disilanes whereas the linear trisilanes and disilanes do not interconvert.
AB - Isomeric phenyl-hexamethyltrisilyliron complexes of the type (η5-C5H5)Fe(CO)2Si3Me6Ph, FpSi3Me6Ph (I-V) have been synthesized, characterized, and photolysed in an inert solvent. Separate photolyses of the linear Fp complexes, e.g. FpSiMe2SiMe2 SiMe2Ph (III), result in the transient formation of intermediate isomeric 2-substituted trisilyl Fp complexes, FpSiMe(SiMe3) (SiMe2 Ph) (IV) and FpSiPh(SiMe3)2 (V) which photodeoligomerize to FpSiMe3 and FpSiMe2Ph via the intermediacy of Fp disilyl complexes. The product distribution from the photolyses of the Fp complexes is in accord with a mechanism involving equilibrating silyl(silylene) iron complexes. The two branched silyl complexes, FpSiPh(SiMe3)2 and FpSiMe(SiMe3) (SiMe2Ph), isomerize prior to formation of the disilanes whereas the linear trisilanes and disilanes do not interconvert.
UR - http://www.scopus.com/inward/record.url?scp=0037847905&partnerID=8YFLogxK
U2 - 10.1016/0022-328X(93)83366-4
DO - 10.1016/0022-328X(93)83366-4
M3 - Artículo
AN - SCOPUS:0037847905
SN - 0022-328X
VL - 462
SP - 259
EP - 264
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
IS - 1-2
ER -