Electrochromic compound, electrochromic composition, and display element

• Main Authors: Yutani, Keiichiroh, Horiuchi, Tamotsu, Sagisaka, Toshiya, Okada, Yoshinori, Tsuji, Kazuaki, Fujimura, Koh, Okada, Takashi, Hirano, Shigenobu, Inoue, Mamiko, Yashiro, Tohru, Takahashi, Hiroyuki, Naijo, Yoshihisa, Kim, Sukchan
• Format: Patent
• Language: English
• Published: 06.07.2021
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; ADHESIVES; CHEMISTRY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DYES; FREQUENCY-CHANGING; HETEROCYCLIC COMPOUNDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC CHEMISTRY; PAINTS; PHYSICS; POLISHES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

To provide an electrochromic compound, represented by the following general formula (I):where X1, X2, X3, X4, X5, X6, X7 and X8 are each independently a hydrogen atom or a monovalent substituent; R1 and R2 are each independently a monovalent substituent; A− and B− are each independently a monovalent anion; and Y is represented by the following general formula (II) or (III):where X9, X10, X11, X12, X13, X14, X15, X16, X17, and X18 are each independently a hydrogen atom or a monovalent substituent.