oms, shown by R1 in the above-described general formula [2] are substituted by a halogen atom (e.g. a fluorine atom, a chlorine atom, a bromine atom and an iodine atom), and includes one having preferably 3 to 8 carbon atoms, which is specifically exemplified by the same as examples of one having 3 to 12 carbon atoms among the haloalkyl groups having 1 to 12 carbon atoms, shown by R1 in the above-