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Front Cover: Ultrathin Anionic Tungstophosphite Molecular Wire with Tunable Hydrophilicity and Catalytic Activity for Selective Epoxidation in Organic Media (Chem. Eur. J. 69/2017)
Author(s) -
Zhang Zhenxin,
Sadakane Masahiro,
Hara Michikazu,
Ueda Wataru
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201704763
Subject(s) - polyoxometalate , catalysis , octahedron , materials science , polymerization , molecular wire , olefin fiber , hydrothermal circulation , polymer chemistry , chemical engineering , nanotechnology , crystallography , molecule , chemistry , composite material , organic chemistry , polymer , crystal structure , engineering
Self‐assembly of a central HP III O 3 with six surrounding WO 6 octahedra forms tungstophosphite polyoxometalate units, [HP III W 6 O 21 ] 2− . The polyoxometalate units linearly polymerize under hydrothermal conditions, eventually forming 1D molecular wires with a diameter of 1.2 nm. Surface modification with organoammonium cation enables the molecular wires to disperse in organic solvents. The dispersed ultrathin molecular wire acts as an efficient catalyst for olefin epoxidation. More information can be found in the Full Paper by Z. Zhang, W. Ueda et al. on page 17497.