Crystal Engineering of Vapochromic Porous Crystals Composed of Pt(II)-Diimine Luminophores for Vapor-History Sensors
Crystal Engineering of Vapochromic Porous Crystals Composed of Pt(II)-Diimine Luminophores for Vapor-History Sensors
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DOI：
10.1021/acs.cgd.8b00130
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发表时间：
2018-05
影响因子：
3.8
通讯作者：
Y. Shigeta;A. Kobayashi;Masaki Yoshida;Masako Kato
中科院分区：
文献类型：
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作者：
Y. Shigeta;A. Kobayashi;Masaki Yoshida;Masako Kato
合成了一种新型 Pt(II) 二亚胺配合物 [Pt(CN)2(H2dpcpbpy)] (1, H2dpcpbpy = 4,4′-二(对羧基苯基)-2,2′-联吡啶)，并研究了其气色行为。黄色无定形形式的 1, 1-Ya 在暴露于乙醇蒸气后转化为多孔橙色结晶形式 1-Oc。这种行为类似于之前报道的复合物 [Pt(CN)2(H2dcphen)] (2, H2dcphen = 4,7-二羧基-1,10-菲咯啉)。 X 射线衍射研究表明，与红色晶型 2, 2-Rc (6.4 × 6.8 A) 相比，1-Oc 具有相似但更大的多孔通道 (14.3 × 8.6 A)。虽然2-Rc的多孔结构在蒸气解吸后保留，但1-Oc的多孔结构塌陷形成橙色无定形固体1-Oa。然而，在此过程中橙色没有改变。通过研磨 1-Oa 和 2-Rc 恢复初始颜色。这些蒸汽写入和研磨擦除功能可应用于原位蒸汽传感和蒸汽历史传感，即可以记忆的传感器...
A novel Pt(II) diimine complex, [Pt(CN)2(H2dpcpbpy)] (1, H2dpcpbpy = 4,4′-di(p-carboxyphenyl)-2,2′-bipyridine), was synthesized, and its vapochromic behavior was investigated. The yellow amorphous form of 1, 1-Ya, transformed into the porous orange crystalline form, 1-Oc, upon exposure to ethanol vapor. This behavior is similar to that of the previously reported complex, [Pt(CN)2(H2dcphen)] (2, H2dcphen = 4,7-dicarboxy-1,10-phenanthroline). X-ray diffraction study showed that 1-Oc possessed similar but larger porous channels (14.3 × 8.6 A) compared to the red crystalline form of 2, 2-Rc (6.4 × 6.8 A). Although the porous structure of 2-Rc was retained after vapor desorption, that of 1-Oc collapsed to form the orange amorphous solid, 1-Oa. However, the orange color was unchanged in this process. The initial color was recovered by grinding 1-Oa and 2-Rc. These vapor-writing and grinding-erasing functions can be applied to both in situ vapor sensing and vapor-history sensing, i.e., sensors that can memorize ...