Permetalloplumbanes: Preparation of [Pb{Co(CO)3(L)}4] and [Pb{Fe(CO)2(NO)(L)}4].: Complexes containing four transition metal to lead bonds (L = tertiary arsine,phosphine or phosphite). |
| |
| Authors: | Paul Hackett AR Manning |
| |
| Institution: | Department of Chemistry, University College, Belfield, Dublin 4, Ireland |
| |
| Abstract: | The sole and unexpected products from the reactions of a variety of lead (II) and lead (IV) compounds with Co2(CO)6(L)2] complexes (L = tertiary arsine, phosphine, or phosphite) in refluxing benzene solution are the blue, air-stable percobaltoplumbanes Pb{Co(CO)3(L)}4]. These have also been obtained from the reaction of NaCo(CO)3(L)] (L PBu3n) with lead (II) acetate which with NaFe(CO)2(NO)(L)] forms the isoelectronic Pb{Fe(CO)2(NO)(L)}4] L P(OPh)3]. The IR spectra of the complexes in the v(CO) and v(NO) regions are consistent with tetrahedral PbCo4 or PbFe4 fragments, trigonal bipyramidal coordination about the cobalt or iron atoms and linear PbCoAs, PbCoP, or PbFeP systems. Unlike Pb{Co(CO)4}4], our complexes do not dissociate to Co(CO)3(L)]? or Fe(CO)2(NO)(L)]? ions when dissolved in donor solvents. |
| |
| Keywords: | Author to whom correspondence should be addressed |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
