Controlled Synthesis of Porous Coordination-Polymer Microcrystals with Definite Morphologies and Sizes under Mild Conditions
Herein, we report a facile and convenient method for the synthesis of the porous coordination polymer MOF‐14 [Cu3(BTB)2] (H3BTB=4,4′,4′′‐benzene‐1,3,5‐triyl‐tribenzoic acid) as microcrystals with definite shapes and crystal facets controlled by the reaction medium at room temperature. The amount of...
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Published in | Chemistry : a European journal Vol. 20; no. 45; pp. 14783 - 14789 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Weinheim
WILEY-VCH Verlag
03.11.2014
WILEY‐VCH Verlag Wiley Subscription Services, Inc |
Subjects | |
Online Access | Get full text |
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Summary: | Herein, we report a facile and convenient method for the synthesis of the porous coordination polymer MOF‐14 [Cu3(BTB)2] (H3BTB=4,4′,4′′‐benzene‐1,3,5‐triyl‐tribenzoic acid) as microcrystals with definite shapes and crystal facets controlled by the reaction medium at room temperature. The amount of sodium acetate added to the reaction system plays a crucial role in the shape evolution of MOF‐14 from rhombic dodecahedrons to truncated rhombic dodecahedrons and cubes with truncated edges and then to cubes. The addition of a base could accelerate the formation rate of crystal growth and increase the supersaturation of crystal growth, thus resulting in the formation of MOF‐14 cube crystals with high‐energy crystal facets. The morphological evolution was also observed for HKUST‐1 [Cu3(BTC)2] (H3BTC=1,3,5‐benzenetricarbocylic acid) from octahedrons to cubes, thus verifying the probable mechanism of the morphological transformation. The gas‐adsorption properties of MOF‐14 with different shapes were studied and reveal that the porous coordination‐polymer microcrystals display excellent and morphology‐dependent sorption properties.
Overall control: Facet design and morphological evolution of the porous coordination polymers MOF‐14 and HKUST‐1 can be achieved by using a facile and convenient synthetic strategy at room temperature. The crystal shape and size can be readily controlled through tuning the acid/base environment of the reaction system (see figure). |
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Bibliography: | ark:/67375/WNG-H0NHV8MM-0 National Basic Research Program of China - No. 2010CB923303 istex:94032AF44EC6947147867C5931C9D7FDCEE093CB ArticleID:CHEM201402923 National Natural Science Foundation of China - No. 21331002; No. 91122001 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0947-6539 1521-3765 |
DOI: | 10.1002/chem.201402923 |