Acetylenic complexes are disclosed that are useful as environmental indicating materials whereby exposure thereof to environmental stimuli induces a color change. These complexes contain at least one effective complexing metal and at least one acetylenic compound of the general formula: [R--(C"C).sub.a --(CH.sub.2).sub.b --(C"C).sub.c ].sub.2.dHX Wherein a is 1 or 2, b is about 0-5; c is 0 or 1; with the proviso that when a is 1, b and c are 0, when a is 2, b is about 0-5 and c is 0 or 1; and R is --(CH.sub.2).sub.n -NHC(O)NHR'; wherein n is an integer of about 1 to 10; and R' is selected from the group consisting of: (a) hydrogen; (b) cycloalkyl; (c) alkenyl; (d) cycloalkenyl; (e) alkyl; (f) phenyl; (g) alkoxy; (h) alkoxy alkyl; and (i) alkoxycarbonylalkyl.
本发明揭示了
乙炔配合物,可用作环境指示材料,通过将其暴露于环境刺激下诱导颜色变化。这些配合物包含至少一种有效的配位
金属和至少一种
乙炔化合物,其一般式为:[R--(C"C).sub.a --(CH.sub.2).sub.b --(C"C).sub.c ].sub.2.dHX,其中a为1或2,b约为0-5;c为0或1;但当a为1时,b和c为0;当a为2时,b约为0-5,c为0或1;R为--(CH.sub.2).sub.n -NHC(O)NHR',其中n为约1到10的整数;R'选自以下组:(a)氢;(b)环烷基;(c)烯基;(d)环烯基;(e)烷基;(f)苯基;(g)烷氧基;(h)烷氧基烷基;(i)烷氧羰基烷基。