Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
ISSN-L : 0366-7022
Volume 39 , Issue 8
Showing 1-47 articles out of 47 articles from the selected issue
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  • Yong Li, Haijun Yang
    2010 Volume 39 Issue 8 Pages 796-802
    Published: August 05, 2010
    Released: June 26, 2010
    JOURNALS RESTRICTED ACCESS
    Due to inclusion function and easy chemical modification of calixarenes, they should be able to form inclusion complexes with free radicals, spin labeled calixarenes, and polyradicals based on calixarene skeletons. It is therefore important not only to utilize radicals as spin probes to investigate inclusion function and conformational changes of calixarenes, but also to develop potentially new molecular magnetic devices and materials. Recent research advances, especially using ESR technique, in interdiscipline of calixarene and radical, are briefly reviewed.
    Radicals used as spin probes can provide important information on structures and conformational changes of calixarenes through inclusion complexes of radicals or spin labels. Multispin-labeled calixarenes and polyradicals based calixarene skeletons should provide chances to study magnetic interaction and develop potential applications. In the present review, recent progresses in chemistry of calixarene and free radicals are described. Fullsize Image
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  • Long Yin, Qingjun Wang, Jian Xue, Jianfu Ding, Qingmin Chen
    2010 Volume 39 Issue 8 Pages 816-817
    Published: August 05, 2010
    Released: June 26, 2010
    JOURNALS OPEN ACCESS
    We systematically evaluated water contact and sliding angles on the lotus leaf from −10 to 80 °C under either extremely low or high relative humidity. SEM images revealed changes of the hierarchical structures after thermal treatment at different temperatures. The wettability recovery test showed consistent results that a restorable loss of superhydrophobic behavior appeared under low temperature and high humidity due to water condensation, whereas structural destruction at high temperatures caused the lotus leaf to lose extraordinary water repellency permanently.
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