Frontispiece: Proton Order–Disorder Phenomena in a Hydrogen‐Bonded Rhodium–η5‐Semiquinone Complex: A Possible Dielectric Response Mechanism. Issue 27 (26th June 2015)

• Record Type: Journal Article
• Authors: Mitsumi, Minoru; Ezaki, Kazunari; Komatsu, Yuuki; Toriumi, Koshiro; Miyatou, Tatsuya; Mizuno, Motohiro; Azuma, Nobuaki; Miyazaki, Yuji; Nakano, Motohiro; Kitagawa, Yasutaka; Hanashima, Takayasu; Kiyanagi, Ryoji; Ohhara, Takashi; Nakasuji, Kazuhiro
• Is Part Of: Chemistry. Volume 21:Issue 27(2015)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2015-06-26
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201582762
• Languages: English
• ISSNs: 0947-6539

Abstract

<abstract abstract-type="graphical" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>Proton Dynamics</bold> In their Full Paper on <ext-link ext-link-type="doi" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink">page 9682 ff.</ext-link>, M. Mitsumi et al. report a hydrogen‐bonded rhodium(II)–η⁵‐semiquinone complex that exhibits a paraelectric–antiferroelectric second‐order phase transition at 237.1 K. Dielectric and ¹³C CP/MAS NMR measurements revealed for the first time the relationship between the very first dielectric response of the hydrogen‐bonded proton and proton exchange rates. The dielectric response can be attributed to the rapid migration of the protonic solitons composed of η⁶‐hydroquinone and η⁴‐benzoquinone complexes, which would be generated in the hydrogen‐bonded chain.<graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgj12qccg1f" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></p> </abstract>