Organoantimony III Compounds

Gmelin Handbook of Inorganic Chemistry Organoantimony(III) Compounds, Parts 1 and 2 (1981) Organoantimony(V) Compounds, Part 3 (1982), Springer-Verlag, Berlin, 1981, 1982. 

Several organoantimony(III) compounds containing antimony(III)-transition metal bonds have been oxidized by elemental bromine and Ph2PCl to give the corresponding dihalides (equations 283 and 284 ). 

For the trivalent elements As, Sb, and Bi, all compounds with the composition X M(R2Dtc)3- (n = 0, 1,2 X = Cl, Br, I) have been obtained. Furthermore, organoantimony(III) derivatives of the type RSb(R2Dtc)2 and R2Sb(R 2Dtc) also have been reported (450a). 

The principal organoantimony(III) chalcogen derivatives of Sb(III) are compounds of the types (RSbE) , (R2Sb)2E,... 

II. PREPARATION OF ORGANOANTIMONY(lli) AND -BISMUTH(III) COMPOUNDS A. Preparation of Triorganoantimony(lil) and -bismuth(lll) Compounds... 

Organoantimony(III) and -bismuth(III) compounds containing electronegative atoms such as halogen, oxygen and so on show Lewis acidic character. Thus, tetracoordinate anions and even pentacoordinate dianions have been prepared from the corresponding halides or pseudohalides, and several of the compounds have recently been fully characterized by X-ray crystallography. Several examples are shown in equations 162 , 163 , 164 , 165 , 166 , 167 , 168 and 169 ... 

Syntheses of organoantimony and organobismuth compounds 789 III. PREPARATION OF ORGANOANTIMONY(V) AND -BISMUTH(V) COMPOUNDS... 

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