NEAR-INFRARED-RAY ABSORBING MATERIAL CONTAINING CYANINE COMPOUND AND CYANINE COMPOUND

摘要

The near infrared ray absorbing material of the present invention contains a cyanine compound represented by the general formula (I) and has a steep light absorption in a wavelength region of 800 to 1000 nm and is excellent in light resistance. In the formula (I), R^One~ R⁴, Y^One And Y²Represents a hydrogen atom or a group of the formula (II) or (II '), and An^Q-Represents an anion of q, and at least R^OneIs a group of the formula (II) or (II '), or an^Q-Is an ion of the formula (III), R¹¹~ R¹³Represents a hydrogen atom, a hydroxyl group or the like, and Z^One And Z²Represents a C1-10 alkyl group or the like. In formula (II '), the bond between G' and T 'is a double bond or a conjugated double bond, G' represents a C atom, T 'represents a C atom or an N atom, and G' and T ' A 6-membered ring and the like, w 'represents 0 to 4, R^{01 '}Represents a hydrogen atom, a hydroxyl group, or the like. In the formula (III), R⁵ And R⁶Represents a C1-8 halogen-substituted alkyl group.