Published in
Elsevier, Journal of Organometallic Chemistry, 1(689), p. 25-34
DOI: 10.1016/j.jorganchem.2003.09.022
Links
Tools
The photochemical and thermal reactions of a triosmium cluster carrying a γ-pyrone ligand with alkynes
Full text: Download
Abstract
The reaction of the cluster Os-3(CO)(10)(mu-H)(mu-gamma-C5H3O2) (1) with a number of alkynes under thermal or visible light irradiation conditions, afforded in most cases the dinuclear complexes Os-2 (CO)(6)(mu-gamma-C5H3O2)(mu-LH) (L = PhCCPh, (BuCCH)-Bu-l, (BuCCMe)-Bu-l or EtCCEt) (2) or the trinuclear chain complexes Os-3(CO)(9)(mu-H)(mu-gamma-C5H3O2)(mu-RCCHC6H4) (R = H, Ph) (3). In the case of PhCCPh, a new isomer of Os-3(CO)(8)(PhCCPh)(2), viz., Os-3(CO)(8)(mu-PhCCPh)(mu-PhCCHC6H4) (7) has been isolated and characterised.