prov:value
| - The catalyst as claimed in claim 5, wherein the compound (d) is represented by the following formula: ##STR9## wherein n is an integer of 2???n???10, R1 to R26 are each independently a substituent having at least one element selected from the group consisting of carbon, hydrogen, oxygen, halogen, nitrogen, sulfur, phosphorous, boron and silicon, any two members of R1 to R26 may form together a rin
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