Sn Organotin Compounds

Bromostibine Complexes of Iron(II): Hypervalency and Reactivity

“…The mechanism by which [CpFe­(CO)­(Me 2 BrSb-μ-Br-SbBrMe 2 )] forms is not immediately evident, and it is clear that other products must be present. The closest analogue, the spectroscopically characterized [CpFe­(CO)­(SbPh 3 ) 2 ]­[BF 4 ], was formed via sequential displacement of the thioether ligands from [CpFe­(CO)­(SMe 2 ) 2 ]­[BF 4 ] and has an identical CO stretching band (1973 cm –1 ) in the solution infrared spectrum, demonstrating an approximate equivalence in the net bonding ability for the haloalkyl stibine and triaryl stibine ligands . However, the displacement of a CO group, which we have shown to be reproducible in this system, has not been observed in analogous reactions of the [CpFe­(CO) 2 ] + fragment with other stibine ligands, even potentially chelating alkyl-substituted distibines .…”

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

“…Me 3 NOÁ2H 2 O was commercially available and used as received. (l-PDT)Fe 2 (CO) 6 (A) [25], (Ph 2-P) 2 N(C 6 H 4 Cl-p) [26], and Ph 2 P(NHC 6 H 4 R-1,4) (R = NO 2 , CO 2 Et) [27] were prepared according to the literature. Preparative TLC was carried out on glass plates (25 cm 9 20 cm 9 0.25 cm) coated with silica gel G (10-40 mm).…”

Synthesis and structural characterization of the mono- and diphosphine-containing diiron propanedithiolate complexes related to [FeFe]-hydrogenases. Biomimetic H2 evolution catalyzed by (μ-PDT)Fe2(CO)4[(Ph2P)2N(n-Pr)]

“…Me 3 NOÁ2H 2 O, n-BuLi (2.5 M in hexane) and Ph 2 PC 2 H 4 PPh 2 were commercially available and used as received. (l-PDT)Fe 2 (CO) 6 (A) [20], Ph 2 PH [21], CpFe(CO) 2 I [22], Ph 2 PNH(t-Bu) [23] and (Ph 2 P) 2 NR(R = n-Pr,n-Bu) [24,25] were prepared according to literature methods. Preparative TLC was carried out on glass plates (26 Â 20 Â 0.25 cm) coated with silica gel G (10-40 lm).…”