CH··· Interaction for Rhenium-Based Rectangles: An Interaction That Is Rarely Designed into a Host-Guest Pair
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- 作者：Bala. Manimaran ; Liang-Jian Lai ; P. Thanasekaran ; Jing-Yun Wu ; Rong-Tang Liao ; Tien-Wen Tseng ; Yen-Hsiang Liu ; Gene-Hsiang Lee ; Shie-Ming Peng ; Kuang-Lieh Lu
- 刊名：Inorganic Chemistry
- 出版年：2006
- 出版时间：October 2, 2006
- 年：2006
- 卷：45
- 期：20
- 页码：8070 - 8077
- 全文大小：238K
- 年卷期：v.45,no.20(October 2, 2006)
- ISSN：1520-510X
文摘
Alkoxy- and thiolato-bridged ReI molecular rectangles [{(CO)3Re(
-ER)2Re(CO)3}2(-bpy)2] (ER = SC4H9, 1a;SC8H17, 1b; OC4H9, 2a; OC12H25, 2b; bpy = 4,4'-bipyridine) exhibit strong interactions with several planar aromaticmolecules. The nature of their binding was studied by spectral techniques and verified by X-ray diffraction analysis.Standard absorption and fluorescence titrations showed that a relatively strong 1:1 interaction occurs betweenaromatic guests such as pyrene and these rectangles. The results of a single-crystal X-ray diffraction analysisshow that the recognition of 1 with a pyrene molecule is mainly due to CH···
interactions and the face of theguest pyrene is located over the edges of the bpy linkers of 1. This is a fairly novel example of an interaction thatis rarely designed into a host-guest pair. Furthermore, the interaction of 1 with Ag+ results in the self-organizationof supramolecular arrays, as revealed by solid-state data.
-ER)2Re(CO)3}2(-bpy)2] (ER = SC4H9, 1a;SC8H17, 1b; OC4H9, 2a; OC12H25, 2b; bpy = 4,4'-bipyridine) exhibit strong interactions with several planar aromaticmolecules. The nature of their binding was studied by spectral techniques and verified by X-ray diffraction analysis.Standard absorption and fluorescence titrations showed that a relatively strong 1:1 interaction occurs betweenaromatic guests such as pyrene and these rectangles. The results of a single-crystal X-ray diffraction analysisshow that the recognition of 1 with a pyrene molecule is mainly due to CH··· interactions and the face of theguest pyrene is located over the edges of the bpy linkers of 1. This is a fairly novel example of an interaction thatis rarely designed into a host-guest pair. Furthermore, the interaction of 1 with Ag+ results in the self-organizationof supramolecular arrays, as revealed by solid-state data.