RT info:eu-repo/semantics/article
T1 New η-allyl η-cyclopentadienylcobalt cations
A1 Avilés, T.
A1 Barroso Parla, Francisca
A1 Royo Gracia, Pascual
K1 Cationic complexes
K1 Cobalt
K1 Ciencia
K1 Química inorgánica
K1 Science
K1 Chemistry, inorganic
AB [Co(R-η-C3H4)(η-C5H5)I] is a good precursor for the preparation of some new cationic complexes as the iodide can easily be replaced; thus addition of PEt3 to the iodo-complex (R  H) gives [Co(η-C3H5)(η-C5H5)(PEt3)]+. The reactions of [Co(R-η-C3H4)(η-C5H5))I] (R  H or 2-Me) with AgBF4 give solutions containing the coordinatively unsaturated species [Co(R-η-C3H4)(η-C5H5)+. The presence of traces of water leads to the formation of [Co(R-ηC3H4)-(η-C5H5)(H2O)]+. The addition of monodentate ligands L  PEt3 PPh3, AsPh3, SbPh3, CNCH3 and bidentate ligands LL  Ph2PCH2CH2PPh2(dppe) and o-C6H4(AsMe2)2(diars), gives, respectively mononuclear [Co(2-Me-ηC3H4)-(η-C5H5)L]+ and binuclear ligand-bridged [(2-Me-ηC3H4)(η-C5H5)CoLLCo(2-Me-ηC3H4)(η-C5H5))]2+ complexes. Crystals of [Co(2-Me-ηC3H4)(η-C5H5)-(H2O)]+[BF4]- are monoclinic, space group P21/c, with a 7.858(3), b 10.262(4), c 15.078(4) Å, β 98.36(1)°. The molecular structure contains the cobalt atom bonded to planar 2-Me-allyl and cyclopentadienyl substituents, which are almost parallel with the H2O molecule in a staggered conformation with respect to the 2-Me group.
PB Elsevier
SN 0022-328X
YR 1982
FD 1982
LK http://hdl.handle.net/10017/4809
UL http://hdl.handle.net/10017/4809
LA eng
NO Comisión Asesora de Investigación Científica y Técnica
DS MINDS@UW
RD 29-nov-2023