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Porous Lanthanide–Organic Open Frameworks with Helical Tubes Constructed from Interweaving Triple‐Helical and Double‐Helical Chains
Author(s) -
Sun YanQiong,
Zhang Jie,
Chen YongMei,
Yang GuoYu
Publication year - 2005
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.200500453
Subject(s) - lanthanide , crystallography , triple helix , hydrothermal circulation , metal organic framework , materials science , hydrothermal synthesis , porosity , coordination polymer , polymer , chemistry , stereochemistry , chemical engineering , crystal structure , ion , organic chemistry , composite material , adsorption , engineering
Achiral channels as well as left‐ and right‐handed helical tubes are present in novel lanthanide‐organic frameworks prepared under hydrothermal conditions from lanthanide oxides. In the three‐dimensional coordination polymers, the Ln atoms (Ln=Eu, Dy, Y, Pr, Nd, Sm, Gd, Tb, Er) are linked by 4,5‐imidazoledicarboxylic acid ligands with skew coordination orientation (see picture).