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1. (WO2014208775) ELECTROCHROMIC COMPOUND, ELECTROCHROMIC COMPOSITION, DISPLAY ELEMENT, AND DIMMING ELEMENT

Pub. No.:    WO/2014/208775    International Application No.:    PCT/JP2014/067725
Publication Date: Thu Jan 01 00:59:59 CET 2015 International Filing Date: Fri Jun 27 01:59:59 CEST 2014
IPC: C07F 9/6512
C09K 9/02
G02F 1/15
G09F 9/30
Applicants: RICOH COMPANY, LTD.
INOUE, Mamiko
SASAKI, Masaomi
YASHIRO, Tohru
YUTANI, Keiichiroh
OKADA, Yoshinori
KIM, Sukchan
TAKAHASHI, Hiroyuki
FUJIMURA, Koh
NAIJO, Yoshihisa
TSUJI, Kazuaki
HIRANO, Shigenobu
SAGISAKA, Toshiya
YAMAMOTO, Satoshi
GOTO, Daisuke
TAKAUJI, Keigo
Inventors: INOUE, Mamiko
SASAKI, Masaomi
YASHIRO, Tohru
YUTANI, Keiichiroh
OKADA, Yoshinori
KIM, Sukchan
TAKAHASHI, Hiroyuki
FUJIMURA, Koh
NAIJO, Yoshihisa
TSUJI, Kazuaki
HIRANO, Shigenobu
SAGISAKA, Toshiya
YAMAMOTO, Satoshi
GOTO, Daisuke
TAKAUJI, Keigo
Title: ELECTROCHROMIC COMPOUND, ELECTROCHROMIC COMPOSITION, DISPLAY ELEMENT, AND DIMMING ELEMENT
Abstract:
An electrochromic compound, represented by the following general formula (I): where X1 to X4 are each a substituent represented by the following general formula (II), an alkyl group that may contain a functional group, an aromatic hydrocarbon group that may contain a functional group, or a hydrogen atom, and at least two selected from X1 to X4 are the substituents represented by the general formula (II): where R1 to R8 are each independently a hydrogen atom, or a monovalent group that may contain a substituent; B is a substituted or unsubstituted monovalent group that may contain a functional group; A- is a monovalent anion; and m is any of 0 to 3, and R1 to R8, B, and m may each independently be different when a plurality of the substituents represented by the general formula (II) are present.