Single component electrochromic device having a tunable IR filter

A non-segregated one-component electrochromic device, comprising:

• an anodic surface and a cathodic surface;
• a chamber defined at least in part by the anodic surface and the cathodic surface;
• and
• an electrochromic medium disposed within the chamber, the electrochromic medium including an anodic material and a cathodic material comprising an electrochromic compound M that is reversibly oxidizable to at least one oxidized state and reversibly reducible to at least one reduced state, and
• wherein the electrochromic compound M comprises a compound of Formula (I):
• wherein:
• R1 and R2 are individually alkyl, aryl, alkoxy, or aryloxy;
• R3, R4, R5, R6, R7, R8 are individually H, alkyl, alkenyl, aryl, alkoxy, or aryloxy;
• R9 and R10 are individually H, alkyl, aryl, alkoxy, or aryloxy, or where R1 and R2 are alkyl, R9 and R10 are individually H, alkyl, alkoxy, or aryloxy;
• R11 and R12 are individually alkyl, (CH2CH2O)nOCH3, or (CH2)nN*(R20)3[X], wherein n is from 1 to 20;
• each R20 is individually alkyl;
• and
• X is an anion.

An electrochromic medium for use in an electrochromic device, comprising:

• an electrochromic compound of Formula (I):
• wherein the electrochromic compound of Formula (I) can be reversibly reduced to form a reduced species of Formula (II):
• and
• wherein the electrochromic compound of Formula (I) can be reversibly oxidized to form an oxidized species of Formula (III):
• wherein:
• R1 and R2 individually alkyl, aryl, alkoxy, or aryloxy;
• R3, R4, R5, R6, R7, R8 are individually H, alkyl, alkenyl, aryl, alkoxy, or aryloxy;
• R9 and R10 are individually H, alkyl, aryl, alkoxy, or aryloxy, or where R1 and R2 alkyl, R9 and R10 are individually H, alkyl, alkoxy, or aryloxy;
• R11 and R12 are individually alkyl, (CH2CH2O)nOCH3, or (CH2)nN+(R20)3[X], wherein n is from 1 to 20;
• each R20 is individually alkyl;
• and
• X is an anion.