Bismuth ligands bonding

Phosphorus, arsenic, antimony and bismuth multiply bonded systems with low coordination number — their role as complex ligands. O. J. Scherer, Angew. Chem., Int. Ed. Engl., 1984, 24, 924 (85). 

Bismuth ligands, 2,989-1061 bonding, 2,1030-1041 7i bonding, 2, 1033-1039 trigonal bipyramidal complexes, 2,1036 Bismuth line, 3,294 Bismuthotungstates, 3, 1042 Bismuth pentafluoride, 3, 292 Bismuth tribromide, 3, 291 Bismuth trichloride, 3, 290 Bismuth trifiuoride, 3, 290 Bismuth triiodide, 3,292 Bismuth trioxide, 3,284 2,2 -Bisphenol metal complexes color photography, 6,109 Bis(trimethylene)triamine metal complexes, 2, 49 4,4 -Bi-l, 2,4-triazolyl metal complexes, 2, 89 polymers... 

Phosphorus, arsenic, antimony, and bismuth ligands have been discussed in CCC (1987).153 Complexes containing bonds between scandium, yttrium, and phosphorus or arsenic have been reviewed,154 as have complexes with neutral phosphorus ligands.155 Many of the complexes described in these reviews contain organic substituents such as cyclopentadienyl or alkyl groups. 

Oxabismoles refer to a type of bismuth alkoxide in which the bismuth-oxygen bond is incorporated into the bismole ring system. Most known oxabismoles are benzoxabismoles as reported by Akiba et al., the unique ring system being stabilized by the Martin ligand. The general synthetic pathway to benzoxabismoles and their derivatives is shown below [930M1857]. 

Phosphorus, Arsenic, Antimony and Bismuth Ligands Table 20 (f -RP=CRJ Complexes, Bond Lengths and Angles... 

MeCN)][SbCl6]3 (106) have also been isolated. The dication has bismuth encompassed by the crown ether and bonded to all ether oxygen atoms, and the chlorine atom [Bi-Cl 2.479(6) A] and the pair of acetonitrile nitrogen atoms [Bi-N 2.82(2) and 2.86(3) A] are bound from the opposite side to the crown ether. The trication adopts a sandwich structure in which bismuth is bound to all four oxygen atoms of each crown ether [Bi-0 2.436(5) and 2.545(5) A]. The acetonitrile nitrogen atom occupies a position between the two ligands [Bi-N 2.650(9) A],... 

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