Among the various thermochromic materials, liquid thermochromic materials are comparatively rare. To produce functional thermochromic liquids, we have designed ionic liquids based on cationicnickelcomplexes with ether side chains, [Ni(acac)(Me2NC2H4NR1R2)]Tf2N ([1]Tf2N: R1=C3H6OEt, R2=Me; [2]Tf2N: R1=C3H6OMe, R2=Me; [3]Tf2N: R1=R2=C3H6OMe), where acac=acetylacetonate and Tf2N=(F3CSO2)2N−. The side
在各种热致变色材料中,液体热致变色材料相对较少。为了生产功能性热致变色液体,我们设计了基于带有醚侧链的阳离子镍配合物的离子液体,[Ni(acac)(Me 2 NC 2 H 4 NR 1 R 2)] Tf 2 N([ 1 ] Tf 2 N: R 1= C 3 H 6 OEt,R 2= Me; [ 2 ] Tf 2 N:R 1= C 3 H 6 OMe,R 2= Me; [ 3 ] Tf 2N: - [R 1 = R 2 = C 3 H ^ 6 OME),其中ACAC =乙酰和TF 2 N =(F 3 CSO 2)2 Ñ - 。侧链(R 1,R 2)可以适度地与金属中心配位,从而在液态下实现与温度有关的配位平衡。[ 1 ] Tf 2 N在室温下为液体。以固体形式获得[ 2 ] Tf 2 N(T m = 352.7 K),但在熔化后在室温下保持液态。[ 3 ] Tf 2N是具有高熔点的固体(T m=