301237-94-5Relevant academic research and scientific papers
Synthesis and photochemistry of the three isomeric Si2C2 diiron complexes (see abstract)
Zhang, Yongqiang,Cervantes-Lee, Francisco,Pannell, Keith H.
, p. 5859 - 5867 (2002)
Photolysis of FpCH2SiMe2SiMe2CH2Fp (1; Fp = (η5-C5H5)Fe(CO)2) for 4 h resulted in the quantitative formation of 1,3-tetramethyldisilacyclobutane (9) and Fp2. Similar irradiation of meso-FpCH2SiMePhSiMePhCH2Fp (2a) led to trans-1,3-dimethyl-1,3-diphenyl-1,3-disila-cyclobutane (10t), while photolysis of the racemic isomer (2b) afforded only cis-1,3-disilacyclobutane (10c) and Fp2. Photolysis of a mixture of 1 and 2a proved that the process was intramolecular. Irradiation for 35 h of FpCH2SiMe2CH2SiMe2Fp (3), an isomer of 1, led to clean conversion to 9 and Fp2 and irradiation of FpCH2SiMePhCH2SiMePhFp, a 1:1 mixture of the two diastereomers 6a and 6b, afforded a mixture of 10t and 10c (1:1). The third isomer of 1, FpSiMe2CH2CH2SiMe2Fp (7), is photochemically inert. Photolysis of the tungsten analogue of 1, WpCH2SiMe2SiMe2CH2Wp (8; Wp = (η5-C5H5)W(CO)3), produced a complex mixture of products.
