G. Albertin et al., PREPARATION OF DITHIOFORMATO, THIOFORMAMIDO AND FORMAMIDO DERIVATIVESOF IRON(II), Journal of the Chemical Society. Dalton transactions, (12), 1994, pp. 1769-1775
Dithioformato [Fe(S2CH)L4]BPh4 1, N-ethyl- and N-p-tolyl-thioformamido
[Fe(RN-CH-S)L4]BPh4 (R = Et or p-MeCH4) 2 and 3, and phenylformamido
[Fe(PhN-CH-O)L4]BPh4 4 derivatives [L = P(OEt)3 or PPh(OEt)2] were pre
pared by treating the hydrides [FeH(H2)L4]+ with the appropriate heter
oallenes CS2, RNCS and PhNCO. Substitution reactions with CO and isocy
anides were studied and the synthesis of [Fe(RN-CH-S)(CO)L3]BPh4 5 and
6, [Fe(RN-CH-S)(p-MeC6H4NC)L3]BPh4 7 and 8, [Fe(PhN-CH-O)(CO){P(OEt)3
}3]BPh4 9 and [Fe(p-MeC6H6NC)3L3][BPh4], 10 complexes achieved. Their
characterization and stereochemistry were established using infrared,
H-1, P-31 and C-13 NMR spectroscopy.