Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo, Hokkaido, 060-0810, Japan.
Department of Physics, Faculty of Science, Hokkaido University, North-10 West-8,Kita-ku, Sapporo, Hokkaido, 060-0810, Japan.
Angew Chem Int Ed Engl. 2017 Feb 20;56(9):2345-2349. doi: 10.1002/anie.201611085. Epub 2017 Jan 23.
A highly methanol-selective vapochromic response has been realized in a Ni -quinonoid complex, [Ni(HL ) ] (H L =4-methylamino-6-methyliminio-3-oxocyclohexa-1,4-dien-1-olate) which exhibits a reversible structural transformation including a coordination geometrical change between the square-planar and octahedral structure by the selective uptake of methanol vapor. This was accompanied by a remarkable color change between purple and orange, as well as temperature-robust spin-state switching in the solid state under ambient conditions. It is remarkable that the properties are derived by the fine structural modification of the quinonoid ligand such as methyl or ethyl analogues. Such a system has high potential for applications in memory devices as well as chemical sensors and smart responsive materials.
在 Ni-醌型配合物[Ni(HL)]（HL=4-甲氨基-6-亚氨基-3-氧代环己-1,4-二烯-1-醇）中实现了对甲醇的高选择性蒸气致变色响应，该配合物通过选择性吸收甲醇蒸气，表现出可逆的结构转变，包括平面四方和八面体结构之间的配位几何变化。这伴随着显著的颜色变化，从紫色变为橙色，以及在环境条件下固态中温度稳定的自旋态切换。值得注意的是，这些性质是通过醌型配体的精细结构修饰（如甲基或乙基类似物）得到的。这样的系统在记忆器件以及化学传感器和智能响应材料方面具有很高的应用潜力。
