Journal of Organometallic Chemistry p. 169 - 181 (1996)
Update date:2022-07-30
Topics:
Ascenso, Jose R.
Goncalves, Isabel S.
Herdtweck, Eberhardt
Romao, Carlos C.
Ring slippage of the indenyl occurs upon dissolution of the complexes [η5-IndM(CO)2L2]BF4 (M = Mo or W; L = NCMe or dimethylformamide) in an excess of L, to give [(η3-Ind)M(CO)2L3]BF4. Other ring-slipped complexes synthesized are [η3-Ind)Mo(CO)2L3]BF4 (L3 = HC(pz)3, [HB(pz)3]-, Me3tacn or {en(NCMe)}). Addition of NCMe or an excess of L failed to give ring slippage in [η5 IndMo(CO)2L2]BF4 (L2 = bipy, dppe, (PMe3)2, {P(OMe)3}2 or triphos). NMR and X-ray studies reveal a large folding of the η3-indenyl ring. The structure complex [η3-Ind)W(CO)2(NCMe)3]BF4 (5) was determined by X-ray analysis.
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