| 摘要 |
PROBLEM TO BE SOLVED: To provide a new top molecule having a rotor being aπelectron system, especially a top molecule in which parts except theπelectron system do not have light absorption characteristics in an ultraviolet visible part even in crystal and theπelectron system is freely rotatable uniaxially, and a method for producing the same. SOLUTION: The top molecule is represented by formula (I) (wherein E<SP>1</SP>represents group fourteenth atoms such as silicon atom; A is a divalent aromatic group such as phenylene; n is an integer of 6-12). COPYRIGHT: (C)2011,JPO&INPIT
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