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

Mio Matsumura,Isao Azumaya,Masanobu Uchiyama,Atsuya Muranaka,Daisuke Hashizume,Hiroyuki Kagechika,Hyuma Masu,Aya Tanatani

doi:10.1039/c2cc37583d

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

Mio Matsumura, Isao Azumaya + Show 6 more

https://doi.org/10.1039/c2cc37583d

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Journal: Journal of the Chemical Society Chemical Communications	Publication Date: Jan 1, 2013
Citations: 30

Affiliation: Ochanomizu University, Otsuka (Japan), Tokushima Bunri University, The University of Tokyo, RIKEN Advanced Science Institute, Tokyo Medical and Dental University, Japan Chemical Analysis Center, Chiba University

#Electrochemical Stimulus #Conformational Switching + Show 7 more

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Abstract

N,N'-Bis(2,3,7,8,12,13,17,18-octaethylporphyrin-5-yl)urea (3) exhibits cis-trans conformational switching depending on the solvent properties, and can adopt the cofacial porphyrin dimer structure under certain conditions. The conformational preference can be switched by electrochemical stimulus.

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