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Synthesis and Characterizations of p ‐Xylyl Bridged Dinuclear Complexes of Molybdenum and Tungsten. The Crystal Structure of μ‐ p ‐xylyl‐bis(1‐Me‐3‐SiMe3‐cyclopentadienyltricarbonylmolybdenum)
Author(s) -
Lin See,
Chen YenHsien
Publication year - 1998
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.199800012
Subject(s) - chemistry , monoclinic crystal system , molybdenum , tungsten , crystallography , crystal structure , stereochemistry , medicinal chemistry , inorganic chemistry , organic chemistry
The reactions of R 1 R 2 CpM(CO) 3 − Li + (M = Mo, W) with α, α′‐dichloro‐ p ‐xylene yielded p ‐xylyl bridged dinuclear complexes of R 1 R 2 CpM(CO) 3 in high yields. All of such new complexes are very stable to air and water. Some of them are stable even in dilute acids and dilute bases. Complex 4 crystallizes in the monoclinic system, space group P 2 1 /n, with a = 6.847(5) Å, b = 9.838(2) Å, c = 25.140(10) Å, β = 96.56(5)°, Z = 2, R F =0.077, R w = 0.105 and V = 1682.4(14) Å 3 .