| abstract |
(57) [Summary] [Structure] A novel copper methacrylic acid complex represented by the following general formula. Cu 2 (μ-MAA) 4 L 2 (wherein Cu is copper metal, μ-MAA is crosslinked carboxylate carboxylate anion, L is water, pyridine, It represents a monodentate ligand such as methacrylic acid. [Effects] The present invention provides an infrared absorbing dye having a high copper content and a polymerizable property, which is capable of reacting copper metal with methacrylic acid to form a special complex, and which is soluble in an organic solvent. By carrying out the present invention, it is possible to provide an inexpensive infrared absorbing material having excellent heat resistance and fastness. |