z-logo
Premium
Direct Observation of Molecular‐Level Template Action Leading to Self‐Assembly of a Porous Framework
Author(s) -
Bajpe Sneha R.,
Kirschhock Christine E. A.,
Aerts Alexander,
Breynaert Eric,
Absillis Gregory,
ParacVogt Tatja.,
Giebeler Lars,
Martens Johan A.
Publication year - 2010
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200903239
Subject(s) - nanoporous , aqueous solution , molecule , nanoscopic scale , keggin structure , spectroscopy , ion , metal organic framework , materials science , porosity , scattering , metal ions in aqueous solution , crystallography , chemistry , chemical engineering , nanotechnology , adsorption , organic chemistry , physics , optics , quantum mechanics , engineering , composite material
The molecular steps involved in the self‐assembly of Cu 3 (BTC) 2 (BTC=1,3,5‐benzenetricarboxylic acid) metal–organic frameworks that enclose Keggin‐type H 3 PW 12 O 40 heteropolyacid molecules were unraveled by using solution 17 O, 31 P, and 183 W NMR spectroscopy, small‐angle X‐ray scattering, near‐IR spectroscopy, and dynamic light scattering. In aqueous solution, complexation of Cu 2+ ions with Keggin‐type heteropolyacids was observed. Cu 2+ ions are arranged around the Keggin structure so that linking through benzenetricarboxylate groups results in the formation of the Cu 3 (BTC) 2 MOF structure HKUST‐1. This is a unique instance in which a templating mechanism that relies on specific molecular‐level matching and leads to explicit nanoscale building units can be observed in situ during formation of the synthetic nanoporous material.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here