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Unusual conformational preference of an aromatic secondary urea: solvent-dependent open-closed conformational switching of N,N′-bis(porphyrinyl)urea

Corresponding authors
Department of Chemistry, Faculty of Science, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
E-mail: tanatani.aya@ocha.ac.jp
Fax: +81-3-5978-2716
Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan
E-mail: i-az@kph.bunri-u.ac.jp
Chemical Analysis Center, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
E-mail: masu@faculty.chiba-u.jp
Advanced Technology Support Division and Advanced Elements Chemistry Research Team, RIKEN-ASI, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
E-mail: atsuya-muranaka@riken.jp
Fax: +81-48-467-2869
Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
E-mail: kage.chem@tmd.ac.jp
Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
E-mail: uchiyama@mol.f.u-tokyo.ac.jp
Fax: +81-3-5841-0732
Chem. Commun., 2013,49, 2290-2292

DOI: 10.1039/C2CC37583D
Received 17 Oct 2012, Accepted 19 Nov 2012
First published online 19 Nov 2012
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