Syntheses and structures of the phenylbismuth/transition-metal carbonyl compounds [PPN][Ph2BiFe(CO)4], (Ph2Bi)2Fe(CO)4, [PhBiFe(CO)4]2 and Ph2BiMn(CO)5

Reactions of Terphenylbismuth Dihalides with KSi(SiMe3)3, K2Si2(SiMe3)4 and Na2[Fe(CO)]4: Reduction vs. Metathesis

“…The UV/Vis spectrum of 2 spectrum displays a maximum absorption at 526 nm which corresponds well to the absorptions at 505 nm and 518 nm observed previously for the related π-π* transitions in the diaryl dibismuthenes Ar # Bi= BiAr # and Ar*Bi=BiAr*. [11] Syntheses [28] In order to investigate the steric effects of a very bulky aryl substituent on such a transformation we reacted Na 2 [Fe(CO) 4 ] [29] and ArBiCl 2 (Ar = ArЈ and Ar # , Scheme 1, c) and obtained the complexes 3 and 4 as dark-red, crystalline solids in modest yields (15 % and 25 %). Both compounds were characterized by NMR, UV/Vis and IR spectroscopy.…”

Syntheses and crystal structures of [tBu3SbCr(CO)5], [tBu3BiM(CO)5] (M=Cr, W), and [tBu3BiMnCp′(CO)2] (Cp′=η5-C5H4CH3)

“…The complexes 1-4 consist of trigonal pyramidal t Bu 3 E (E = Sb, Bi) ligands coordinated to square pyramidal M(CO) 5 Bi-Mn bond in Ph 2 Bi-Mn(CO) 5 (2.842(2) Å ) [15] or the BiMn distances in {Cp 0 (CO) 2 Mn} 3 Bi 2 (2.897-2.950 Å ), a complex with side-on coordination of the Bi 2 unit [17,18]. The environment of the Sb or Bi centres in the complexes 1-4 is distorted tetrahedral with M-E-C (M = Cr, W, Mn; E = Sb, Bi) angles ranging between 111.4(2)°and 117.73(13)°and C-E-C angles between 103.8(3)°and 106.6(3)°.…”

Synthesis, structure and reactivity of complexes containing a transition metal–bismuth bond

“…Reactions between metal anions and haloarylbismuthines result in covalent bonded bismuth-transition metal compounds, whereby the bismuth retains two organic substituents [91]. An example of such a compound is [(CO) 5 Mn(BiPh 2 )] which was synthesised by Cassidy and Whitmire using BiPh 2 X (X = Cl, I) as the starting material.…”