Diiron propanedithiolate complex bearing the pyridyl-functionalized phosphine ligand axially coordinated to a photosensitizer zinc tetraphenylporphyrin

Synthesis and structural characterization of iron–sulfur complexes with hydrophilic nitrogen–phosphorus ligands

“…4, complex 1 is composed of a typical butterfly [Fe 2 S 2 ] cluster ligated by a dithiolate ligand bridging the di-iron core, together with five carbonyls and one monophosphine ligand. The P(1) atom of the Ph 2 P(NHC 6 H 4 Cl) ligand resides in the apical site in the square pyramidal coordination geometry of the Fe(2) core, which is consistent with those reported in other phosphinemonosubstituted di-iron dithiolate complexes [30][31][32][33][34][35][36].…”

Synthesis, structures, and electrocatalytic properties of phosphine‐monodentate, −chelate, and ‐bridge diiron 2,2‐dimethylpropanedithiolate complexes related to [FeFe]‐hydrogenases

“…For the phosphine‐monodentate complexes 1a / 1b and 2a / 2b , their FT‐IR spectra show four absorption bands in the range of 2046–1920 cm −1 for their terminal carbonyls (Table ), the first band of which is each observed at about 2045 cm −1 as reported in diiron monophosphine analogues of the type Fe 2 ( μ ‐dithiolate)(CO) 5 ( k 1 ‐monophosphine) . The average ν C ≡ O values of 1a / 1b and 2a / 2b exhibit the order of 1b ˃ 2a ˃ 1a ˃ 2b (Table ), apparently due to the fact that the electron‐donating abilities of these phosphines with the following order of P(C 6 H 4 Cl‐ p ) 3 ˂ Ph 2 P(NHPh) ˂ P(C 6 H 4 Me‐ p ) 3 ˂ dppm.…”

Dicarbonyl(pyrazine-1,3-dithiolato-κ2S,S′)bis(trimethylphosphane-κP)iron(II)

“…For general background to iron sulfides, see: Cody et al (2000); Georgakaki et al (2003); Capon et al (2005); Song (2005); Li et al (2005); Liu & Xiao (2011). For related structures and the synthesis, see: Durgaprasad et al (2011).…”