| abstract |
A novel compound represented by the general formula (I) or (II) below: n[in the formula, each of R 1 and R 2 independently represent a C 1¼12 hydrocarbon group, and Si(R 3 ) 3 is optionally substituted for a hydrogen atom in the hydrocarbon group; however, R 1 and R 2 are different groups; R 3 represents a methyl or ethyl group; M represents a metal atom or silicon atom; and n is an integer from 1 to 4]. |