Visualization of Ion Conductivity: Vapochromic Luminescence of an Ion-Conductive Ruthenium(II) Metalloligand-Based Porous Coordination Polymer

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• 作者：Ayako Watanabe ; Atsushi Kobayashi ; Erika Saitoh ; Yuki Nagao ; Masaki Yoshida ; Masako Kato
• 刊名：Inorganic Chemistry
• 出版年：2015
• 出版时间：December 7, 2015
• 年：2015
• 卷：54
• 期：23
• 页码：11058-11060
• 全文大小：287K
• ISSN：1520-510X

文摘

We synthesized a new porous coordination polymer {La_1.75(OH)_1.25[Ru(dcbpy)₃]路16H₂O} (La₇-[4Ru]₄; H₂dcbpy = 4,4鈥?dicarboxy-2,2鈥?bipyridine) composed of a luminescent ruthenium(II) metalloligand [Ru(4,4鈥?dcbpy)₃]^{4鈥?/sup> and La3+ cations. X-ray analysis for La₇-[4Ru]₄ revealed that the La3+ cations and [4Ru] metalloligands are crystallized in a molar ratio of 7:4 with OH鈥?/sup> counteranions and a void fraction of 鈭?5.5%. Interestingly, La₇-[4Ru]₄ shows a reversible structural transition triggered by water ad/desorption, which affects not only the triplet metal-to-ligand charge-transfer (3MLCT) emission energy but also the ion conductivity in the solid state. This correlation suggests that La₇-[4Ru]₄ is an interesting material that enables visualization of the ion conductivity via the 3MLCT emission energy.}