Organic antimony compound, process for producing the same, living radical polymerization initiator, process for producing polymer using the same, and polymer
An organic antimony compound represented by formula (1) wherein R<1> and R<2 >represent a C1- C8 alkyl group, an aryl group, a substituted aryl group, or an aromatic heterocyclic group
R<3> and R<4> represent a hydrogen atom or a C1-C8 alkyl group
and R<5> represents an aryl group, a substituted aryl group, an aromatic heterocyclic group, an oxycarbonyl group, or a cyano group. A process for producing a polymer using this organic antimony compound, and a polymer are also provided.