Encapsulation of Various Guests by an Anionic In-Metal鈥揙rganic Framework Containing Tritopic BTB Ligand: Crystal Structure of Reichardt鈥檚 Dye Captured in an In-Metal鈥揙rganic Framework

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• 作者：Eun-Young Cho ; Ja-Min Gu ; In-Hwan Choi ; Wan-Seok Kim ; Yong-Kyung Hwang ; Seong Huh ; Sung-Jin Kim ; Youngmee Kim
• 刊名：Crystal Growth & Design
• 出版年：2014
• 出版时间：October 1, 2014
• 年：2014
• 卷：14
• 期：10
• 页码：5026-5033
• 全文大小：513K
• ISSN：1528-7505

文摘

The reaction between 1,3,5-benzenetribenzoic acid (H₃BTB) and In(NO₃)₃ hydrate in diethylformamide yielded a new In^III-metal-organic framework, [(CH₃CH₂)₂NH₂]₃[In₃(BTB)₄]路10DEF路14H₂O (I). The countercation and solvent-free doubly interpenetrated I potentially contains 71.0% of solvent accessible void. Although the framework of I was not stable enough to maintain its original structure when the solvent molecules were removed, the as-prepared I was found to be a very good sorbent for acridine orange hydrochloride, a large Reichardt鈥檚 dye, and hydrophobic iodine molecule in solution. The as-prepared I exhibited increased uptake amount in the order of Reichardt鈥檚 dye > acridine orange hydrochloride > iodine. The largest uptake of the bulky Reichardt鈥檚 dye by I could be attributed to the optimized structural fitting of Reichardt鈥檚 dye into the large three-dimensional void space of I. The structure of Reichardt鈥檚 dye-encapsulated I_RD was unambiguously revealed by X-ray crystallography for the first time.