Coordination compound and light absorber comprising same

A coordination compound, wherein the coordination compound is represented by An-, wherein A is represented by Chemical Formula A, and n is 1 or 2:

• wherein in Chemical Formula A,
• M is a Cr ion or a Co ion;
• X is O or O—C═O;
• Rw1 and Rw2 are the same as or different from each other, and each independently is a substituted or unsubstituted alkyl group;
• a substituted or unsubstituted alkenyl group;
• a substituted or unsubstituted cycloalkyl group;
• a substituted or unsubstituted aryl group;
• or a substituted or unsubstituted heteroaryl group;
• Ar1 and Ar2 are the same as or different from each other, and each independently is a substituted or unsubstituted arylene group;
• or a substituted or unsubstituted heteroarylene group;
• R6 and R16 are the same as or different from each other, and each independently is hydrogen;
• deuterium;
• a nitrile group;
• a nitro group;
• a hydroxyl group;
• —COOH;
• a halogen group;
• an imide group;
• a substituted or unsubstituted alkyl group;
• a substituted or unsubstituted cycloalkyl group;
• a substituted or unsubstituted heterocyclic group;
• a substituted or unsubstituted aryl group;
• a substituted or unsubstituted heteroaryl group;
• a substituted or unsubstituted alkylthioxy group;
• a substituted or unsubstituted arylthioxy group;
• a substituted or unsubstituted alkylsulfoxy group;
• a substituted or unsubstituted arylsulfoxy group;
• a substituted or unsubstituted alkenyl group;
• a substituted or unsubstituted silyl group;
• a substituted or unsubstituted boron group;
• a substituted or unsubstituted arylphosphine group;
• a substituted or unsubstituted phosphine oxide group;
• a substituted or unsubstituted styryl group;
• —OR100;
• —CO2R101;
• —COR102;
• —OCOR103;
• —CONR104R105;
• or —SO2R106;
• and
• R100 to R106 are the same as or different from each other, and each independently is hydrogen;
• a substituted or unsubstituted alkyl group;
• a substituted or unsubstituted cycloalkyl group;
• a substituted or unsubstituted aryl group;
• a substituted or unsubstituted heteroaryl group;
• or a substituted or unsubstituted amine group.