| 摘要 |
PROBLEM TO BE SOLVED: To provide a compound used as a colorless IR absorber having preferable fastness to light or preferable heat stability.SOLUTION: A novel dithiolene compound exhibited by formula I and/or formula II as a colorless IR absorber is provided. In the formulas, M is Ni, Pd, Pt, Au, Ir, Fe, Zn, W, Cu, Mo, In, Mn, Co, Mg, V, Cr or Ti, X, Xand Xare, respectively independently of others, sulfur or oxygen, and R, R, R, R, Rand Rare, respectively independently of others, hydrogen, non-substituted or substituted 1-18C alkyl, 1-18C alkyl in which alkylene chain is interrupted with oxygen, or the like. |
