30224-53-4Relevant articles and documents
Matsumura,Okawara
, p. 113 (1971)
REACTIVITY OF MOLECULES CONTAINING ELEMENT-ELEMENT BONDS. PART III. REDUCTION OF HALO-ORGANOMETALLICS OF ANTIMONY(III) AND BISMUTH(III); CRYSTAL AND MOLECULAR STRUCTURE OF CoCp2
Calderazzo, Fausto,Marchetti, Fabio,Ungari, Fausto,Wieber, Markus
, p. 93 - 100 (2007/10/02)
Tetraphenyldibismuthine has been prepared by reducing BiPh2I with bis (cyclopentadienyl)-cobalt(II).CoCp2, the former being produced in situ in THF solution from BiPh3 and BiI3 (2:1 molar ratio) or from BiPh3 and I2; also, bis(pentamethylcyclopentadienyl)cobalt(II), CoCp2, reduces BiPh2Cl to Bi2Ph4 in THF solution.The bismuth(III) bromides Bi(p-tolyl)2Br or BiMe2Br have been reduced by CoCp2 to the corresponding dibismuthines, Bi2(p-tolyl)4 or Bi2Me4.Reduction by CoCp2 of the chloro derivatives of bismuth(III) and antimony(III), EPh2Cl produces E2Ph4 and the ionic CoCp2 complexes as by-products.The crystal and molecular structure of the antimony derivative CoCp2 was solved by X-ray diffraction methods.Crystal data: monoclinic, space group P21, a = 8.856(3), b = 16.245(5), c = 7.770(3) Angstroem, β = 109.67(5) deg, Z = 2, R = 0.0396.Similar to Bi2Ph4, Sb2Ph4 undergoes reactions across the element-element bond with p-benzoquinone and diazomethane to the corresponding insertion products (Ph2Sb)2O2C6H4 and (Ph2Sb)2CH2, respectively.