| abstract |
A triarylamine derivative is represented by the following Formula (I). In Formula (I): R 111 , R 112 , R 121 and R 122 each independently represent a hydrogen atom, an aliphatic group or an aromatic group, R 113 , R 114 , R 115 , R 116 , R 123 , R 124 , R 125 and R 126 each independently represent a hydrogen atom or a substituent, provided that at least one pair among R 111 and R 121 , R 112 and R 122 , R 113 and R 123 , R 114 and R 124 , R 115 and R 125 and R 116 and R 126 includes two different groups; at least one ring may be formed by mutual bonding in at least one pair among R 111 and R 112 , R 111 and R 114 , R 113 and R 114 , R 113 and R 123 , R 123 and R 124 , R 121 and R 124 , R 121 and R 122 , and two R 116 s which are respectively bound to different phenyl groups; X m− represents an m-valent anion; m and n represent 1 or 2; and a product of in and n is 2. |