A metal complex colorant represented by formula 1 may embody various colors and has improved fastness, such as light resistance, water resistance and the like:
wherein each of A
1
and A
2
is independently a moiety which includes a substituted or unsubstituted C
2
-C
30
alkenylene group having at least one double bond and is conjugated with an azo group; each of X
1
and X
2
is selected from the group consisting of a hydroxy group, a C
1
-C
4
alkoxy group, a carboxyl group, and a substituted or unsubstituted amino group;M is a polyvalent transition metal; L is a neutral or anionic ligand; n is an integer from 1 to 3; and J is a linker. The metal complex colorant may be used in various fields employing colors, such as fibers, foods, drugs, cosmetics, coatings, inks or ceramics.
式1所表示的
金属配合物
染料可以呈现出各种颜色,并具有改善的牢度,如耐光性、耐
水性等。其中,A1和A2各自是包括取代或未取代的具有至少一个双键的C2-C30烯基链的基团,并与偶氮基共轭;X1和X2分别选自羟基、C1-C4烷氧基、羧基和取代或未取代的
氨基组成的群;M是多价过渡
金属;L是中性或阴离子
配体;n是1到3的整数;J是连接剂。这种
金属配合物
染料可用于各种需要颜色的领域,如纤维、食品、药品、化妆品、涂料、油墨或陶瓷。