共查询到20条相似文献,搜索用时 15 毫秒
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Water Structure Recovery in Chaotropic Anion Recognition: High‐Affinity Binding of Dodecaborate Clusters to γ‐Cyclodextrin 下载免费PDF全文
Khaleel I. Assaf Merve S. Ural Dr. Fangfang Pan Tony Georgiev Prof. Svetlana Simova Prof. Kari Rissanen Prof. Detlef Gabel Prof. Werner M. Nau 《Angewandte Chemie (International ed. in English)》2015,54(23):6852-6856
Dodecaborate anions of the type B12X122? and B12X11Y2? (X=H, Cl, Br, I and Y=OH, SH, NH3+, NR3+) form strong (Ka up to 106 L mol?1, for B12Br122?) inclusion complexes with γ‐cyclodextrin (γ‐CD). The micromolar affinities reached are the highest known for this native CD. The complexation exhibits highly negative enthalpies (up to ?25 kcal mol?1) and entropies (TΔS up to ?18.4 kcal mol?1, both for B12I122?), which position these guests at the bottom end of the well‐known enthalpy‐entropy correlation for CDs. The high driving force can be traced back to a chaotropic effect, according to which chaotropic anions have an intrinsic affinity to hydrophobic cavities in aqueous solution. In line with this argument, salting‐in effects revealed dodecaborates as superchaotropic dianions. 相似文献
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Inside Back Cover: Designed Enclosure Enables Guest Binding Within the 4200 Å3 Cavity of a Self‐Assembled Cube (Angew. Chem. Int. Ed. 19/2015) 下载免费PDF全文
William J. Ramsay Filip T. Szczypiński Dr. Haim Weissman Dr. Tanya K. Ronson Dr. Maarten M. J. Smulders Prof. Boris Rybtchinski Prof. Jonathan R. Nitschke 《Angewandte Chemie (International ed. in English)》2015,54(19):5793-5793
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Back Cover: Ultrasound‐Driven Secondary Self‐Assembly of Amphiphilic β‐Cyclodextrin Dimers (Chem. Eur. J. 13/2015) 下载免费PDF全文
Hai‐tao Zhang Prof. Dr. Xiao‐dong Fan Prof. Dr. Wei Tian Rong‐tian Suo Zhen Yang Yang Bai Wan‐bin Zhang 《Chemistry (Weinheim an der Bergstrasse, Germany)》2015,21(13):5256-5256
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Inside Cover: Regulating Molecular Recognition with C‐Shaped Strips Attained by Chirality‐Assisted Synthesis (Angew. Chem. Int. Ed. 43/2015) 下载免费PDF全文
Dr. Xiaoxi Liu Zackariah J. Weinert Mona Sharafi Dr. Chenyi Liao Prof. Jianing Li Prof. Severin T. Schneebeli 《Angewandte Chemie (International ed. in English)》2015,54(43):12518-12518
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Inside Back Cover: Programmable Polymer‐Based Supramolecular Temperature Sensor with a Memory Function (Angew. Chem. Int. Ed. 20/2014) 下载免费PDF全文
Léna Sambe Victor R. de La Rosa Khaled Belal Dr. François Stoffelbach Dr. Joel Lyskawa Dr. François Delattre Marc Bria Prof. Graeme Cooke Prof. Richard Hoogenboom Prof. Patrice Woisel 《Angewandte Chemie (International ed. in English)》2014,53(20):5215-5215
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Inside Cover: Unusual Inversion Phenomenon of β‐Cyclodextrin Dimers in Water (Chem. Eur. J. 14/2011)
Dr. Stéphane Menuel Prof. Dr. Nathalie Azaroual Prof. Dr. David Landy Natacha Six Prof. Dr. Frédéric Hapiot Prof. Dr. Eric Monflier 《Chemistry (Weinheim an der Bergstrasse, Germany)》2011,17(14):3794-3794
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Back Cover: Self‐Templating and In Situ Assembly of a Cubic Cluster‐of‐Clusters Architecture Based on a {Mo24Fe12} Inorganic Macrocycle (Angew. Chem. Int. Ed. 41/2016) 下载免费PDF全文
Dr. Weimin Xuan Dr. Andrew J. Surman Qi Zheng Dr. De‐Liang Long Prof. Dr. Leroy Cronin 《Angewandte Chemie (International ed. in English)》2016,55(41):12914-12914
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Jorge Bordello Belén Reija Dr. Wajih Al‐Soufi Prof. Dr. Mercedes Novo Prof. Dr. 《Chemphyschem》2009,10(6):931-939
Buckle up! The dimerization of small fluorescent guests is strongly enhanced in presence of a cyclodextrin host. The host cavity acts like a belt to assist the self‐assembly of guests (see picture). Small variations in the guest structure have significant influence on the stability and geometry of the aggregates.