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Iron and Ruthenium Fragment Substituted Disilanes C 5 R 5 (OC) 2 M–Si 2 X 5 (R = H, Me; M = Fe, Ru; × = Cl, H): Synthesis, Structural and Raman Spectroscopic Characterisation, DFT Calculation
Author(s) -
Malisch Wolfgang,
Jehle Heinrich,
Möller Stephan,
Thum Gerhard,
Reising Joachim,
Gbureck Axel,
Nagel Volker,
Fickert Claudia,
Kiefer Wolfgang,
Nieger Martin
Publication year - 1999
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/(sici)1099-0682(199909)1999:9<1597::aid-ejic1597>3.0.co;2-0
Subject(s) - chemistry , ruthenium , raman spectroscopy , transition metal , metal , medicinal chemistry , stereochemistry , catalysis , organic chemistry , physics , optics
Reaction of the sodium metalates Na[M(CO) 2 C 5 R 5 ] [M = Fe, R = H ( 1a ), Me ( 1b ); M = Ru, R = H ( 1c ), Me ( 1d )] with an equimolar amount of hexachlorodisilane yields the metallo‐pentachlorodisilanes C 5 R 5 (OC) 2 M–SiCl 2 –SiCl 3 ( 2a–d ), which can be converted into the pentahydrido analogues C 5 R 5 (OC) 2 M–SiH 2 –SiH 3 ( 3a–c ) via Cl/H exchange with LiAlH 4 . Due to the activating effect of the transition metal fragment chlorination of 3a–c with CCl 4 or HCCl 3 occurs at the α‐silicon to give C 5 R 5 (OC) 2 M–SiCl 2 –SiH 3 ( 4a–c ). The metallo‐disilanes were characterised by 1 H‐, 13 C‐, 29 Si‐NMR, IR and especially Raman spectroscopy. The structures of C 5 H 5 (OC) 2 Fe–Si 2 Cl 5 ( 2a ) andC 5 Me 5 (OC) 2 Fe–Si 2 H 5 ( 3b ) have been determined by X‐ray analysis; 2a,b , 3a,b were theoretically described by DFT calculations.