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Unexpected Reactivity of CH(3,5-Me2Pz)2(CO)3WSnAr3 (Pz = pyrazol-1-yl; Ar = phenyl or p-tolyl) toward Hydrogen Halide

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journal contribution
posted on 29.08.2005, 00:00 by Liang-Fu Tang, Juan Hong, Zhen-Kang Wen
Reaction of CH(3,5-Me2Pz)2(CO)3WSnAr3 (Pz = pyrazol-1-yl; Ar = phenyl or p-tolyl) with hydrogen halide results in the formation of one Sn−Csp3 bond with the cleavage of one Sn−CAr bond as well as the W−Csp3 bond to give novel heterodinuclear complexes Ar2SnCH(3,5-Me2Pz)2(CO)3WX (X = Cl or Br), in which an intriguing κ3-[N,Sn,N] coordination mode as well as an unsymmetrically semibridging carbonyl between the W−Sn bond is observed.

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