Six new crystalline clathrates of cyclotricatechylene (CTC) including two donor–acceptor complexes
Six new crystalline clathrates of cyclotricatechylene (CTC) including two donor–acceptor complexes
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六种新的环三儿茶烯 (CTC) 结晶包合物，包括两种供体-受体复合物
DOI：
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
M. Halcrow
中科院分区：
文献类型：
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作者：
Jonathan J. Loughrey;C. Kilner;M. Hardie;M. Halcrow
深蓝[CTC]2·(TCNE)·6THF和深绿[CTC]2·(TCNQ)·4THF都是排斥型络合物，氰基烯受体夹在两个环三环(CTC)主体分子的邻苯二酚环之间。CTC与四氰基乙烯(TCNE)或四氰基喹二甲烷(TCNQ)分子之间也存在广泛的氢键，这在含有这些氰基烯的晶体中是不寻常的。结晶学、IR和UV-Vis数据表明，这些化合物是典型的给体-受体络合物，CTC和氰基烯受体之间存在很强的电荷转移作用。这是第一个由环三藜芦烯(CTV)衍生的主体的供体-受体络合物，也是第一个具有结晶学特征的TCNE或TCNQ与有机空穴的加合物。溶剂型CTC·3.5THF·0.5H2O采用了一种新型的纳米孔晶格，该晶格由CTC分子的波状氢键片组成。相反，CTC·2EtOH、CTC·3DMA和CTC·5DMSO都采用与先前报道的CTC笼合物相关的结构，包含CTC分子的氢键双分子层或双单分子层。所有六种结构中的CTC分子都含有客体溶剂。这与CTV笼状晶体形成鲜明对比，CTV笼状晶体很少含有溶剂。
Dark blue [CTC]2·(TCNE)·6THF and dark green [CTC]2·(TCNQ)·4THF are both exclusion complexes, with the cyanoalkene acceptor being sandwiched between the catechol rings of two cyclotricatechylene (CTC) host molecules. There is also extensive hydrogen bonding between the CTC and tetracyanoethene (TCNE) or tetracyanoquinodimethane (TCNQ) molecules, which is unusual for crystals containing these cyanoalkenes. Crystallographic, IR and UV–vis data show that these are typical donor–acceptor complexes, with strong charge–transfer interactions between the CTC and cyanoalkene acceptors. These are the first donor–acceptor complexes of a cyclotriveratrylene (CTV)-derived host, and the first crystallographically characterised adducts between TCNE or TCNQ and an organic cavitand. The solvate CTC·3.5THF·0.5H2O adopts a novel nanoporous crystal lattice, composed of undulating hydrogen-bonded sheets of CTC molecules. In contrast, the clathrates CTC·2EtOH, CTC·3DMA and CTC·5DMSO all adopt structures that are related to previously reported clathrates of CTC, containing hydrogen-bonded bilayers or bis-monolayers of CTC molecules. The CTC molecules in all six structures contain included guest solvent. This contrasts with CTV clathrate crystals, which rarely contain included solvent.
影响因子：
4.6
作者：
Ronson, Tanya K.;Carruthers, Christopher;Hardie, Michaele J.
通讯作者：
Hardie, Michaele J.
影响因子：
4.6
作者：
M. A. Little;M. Halcrow;Lindsay P. Harding;M. Hardie
通讯作者：
M. A. Little;M. Halcrow;Lindsay P. Harding;M. Hardie
影响因子：
4.9
作者：
Henkelis, James J.;Ronson, Tanya K.;Hardie, Michaele J.
通讯作者：
Hardie, Michaele J.