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  • Electrical conductivity through π–π stacking in a two‐dimensional porous gallium catecholate metal–organic framework
Title: Electrical conductivity through π–π stacking in a two‐dimensional porous gallium catecholate metal–organic framework
Abstract Metal–organic frameworks (MOFs) are hybrid materials known for their nanoscale pores, which give them high surface areas but generally lead to poor electrical conductivity. Recently, MOFs with high electrical conductivity were established as promising materials for a variety of applications in energy storage and catalysis. Many recent reports investigating the fundamentals of charge transport in these materials focus on the role of the organic ligands. Less consideration, however, is given to the metal ion forming the MOF, which is almost exclusively a late first‐row transition metal. Here, we report a moderately conductive porous MOF based on trivalent gallium and 2,3,6,7,10,11‐hexahydroxytriphenylene. Gallium, a metal that has not been featured in electrically conductive MOFs so far, has a closed‐shell electronic configuration and is present in its trivalent state—in contrast to most conductive MOFs, which are formed by open‐shell, divalent transition metals. Our material, made without using any harmful solvents, displays conductivities on the level of 3 mS/cm and a surface area of 196 m2/g, comparable to transition metal analogs.  more » « less
Award ID(s):
2105495 1956403
PAR ID:
10443475
Author(s) / Creator(s):
 ;  ;  ;  ;  ;  
Publisher / Repository:
Wiley-Blackwell
Date Published:
Journal Name:
Annals of the New York Academy of Sciences
Volume:
1518
Issue:
1
ISSN:
0077-8923
Page Range / eLocation ID:
p. 226-230
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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