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Guest‐induced Assembly of Bis(thiosemicarbazonato) Zinc(II) Coordination Nanotubes
Author(s) -
Paterson Brett M.,
White Keith F.,
White Jonathan M.,
Abrahams Brendan F.,
Donnelly Paul S.
Publication year - 2017
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201701596
Subject(s) - deprotonation , chemistry , molecule , glyoxal , coordination complex , sorption , ligand (biochemistry) , crystallography , semicarbazone , enthalpy , inorganic chemistry , stereochemistry , ion , organic chemistry , metal , biochemistry , receptor , adsorption , physics , quantum mechanics
A Zn II complex of the dianionic tetradentate ligand formed by deprotonation of glyoxal‐bis(4‐phenyl‐3‐thiosemicarbazone) (H 2 gtsp) is a [3+3] trinuclear triangular prism. Recrystallization of this complex in the presence of either CO 2 , CS 2 , or CH 3 CN leads to the formation of [4+4] open‐ended charge‐neutral tetranuclear coordination nanotubes, approximately 2 nm in length and with internal dimensions large enough to accommodate linear guest molecules, which serve to template their formation. Upon removal of the templating molecules the nanotubes demonstrated reversible sorption of CO 2 with an isosteric enthalpy of sorption of 28 kJ mol −1 at low loading.