Тип публикации: статья из журнала
Год издания: 2016
Идентификатор DOI: 10.1134/S0022476616020049
Ключевые слова: density functional method, binuclear manganese and iron complexes, vinylidene complexes, triphenylphosphine, carbonyl
Аннотация: Structures and relative energies of binuclear iron-manganese complexes with the phosphine ligand L, which exist in vinylidene Cp(CO)(L)MnFe(mu-C=CHPh)(CO)(4) (2) and benzylidene ketene eta(4)-{C[Mn(CO)(L)Cp]a (TM) a (TM)(CO)CHPh}Fe(CO)(3) (3) forms are calculated by the B3LYP density functional method. Four isomers with different pПоказать полностьюositions of ligand L relative to the phenyl ring (conformers a and b) and the substituent Ph relative to the D=D bond (conformers E and Z) are considered for each form and their relative stability is determined. It is shown that all isomers of 2 have approximately the same energy (within 4 kcal/mol) whereas the energies of isomers of 3 differ within 21 kcal/mol. Isomer 3Ea in which the PPh3 ligand contacts with the phenyl substituent of the vinylidene group is most energetically favorable. It is found that with an increase in the L ligand size in the order PH3
Журнал: JOURNAL OF STRUCTURAL CHEMISTRY
Выпуск журнала: Vol. 57, Is. 2
Номера страниц: 267-274
ISSN журнала: 00224766
Место издания: NEW YORK
Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER