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Solvent‐Vapor‐Induced Reversible Single‐Crystal‐to‐Single‐Crystal Transformation of a Triphosphaazatriangulene‐Based Metal–Organic Framework
Author(s) -
Nakatsuka Soichiro,
Watanabe Yusuke,
Kamakura Yoshinobu,
Horike Satoshi,
Tanaka Daisuke,
Hatakeyama Takuji
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201912195
Subject(s) - intramolecular force , single crystal , proton , sorption , solvent , phosphinate , conjugated system , chemistry , metal organic framework , crystallography , materials science , polymer chemistry , organic chemistry , polymer , adsorption , physics , quantum mechanics , fire retardant
A triphosphaazatriangulene (H 3 L) was synthesized through an intramolecular triple phospha‐Friedel–Crafts reaction. The H 3 L triangulene contains three phosphinate groups and an extended π‐conjugated framework, which enables the stimuli‐responsive reversible transformation of [Cu(HL)(DMSO)⋅(MeOH)] n , a 3D‐MOF that exhibits reversible sorption characteristics, into (H 3 L⋅0.5 [Cu 2 (OH) 4 ⋅6 H 2 O] ⋅4 H 2 O), a 1D‐columnar assembled proton‐conducting material. The hydrophilic nature of the latter resulted in a proton conductivity of 5.5×10 −3 S cm −1 at 95 % relative humidity and 60 °C.