US 12,415,820 B2
Method for post-synthetic modification of metal-organic frameworks for enhancing hydrophilicity and water stability of metal-organic frameworks in water sorption
Tianyi Luo, Baltimore, MD (US); Michael Tsapatsis, Baltimore, MD (US); and Zhiyong Xia, Baltimore, MD (US)
Assigned to The Johns Hopkins University, Baltimore, MD (US)
Filed by The Johns Hopkins University, Baltimore, MD (US)
Filed on Nov. 14, 2022, as Appl. No. 18/054,956.
Claims priority of provisional application 63/279,400, filed on Nov. 15, 2021.
Prior Publication US 2023/0151031 A1, May 18, 2023
Int. Cl. C07F 7/00 (2006.01); C01G 25/00 (2006.01)
CPC C07F 7/003 (2013.01) 16 Claims
 
1. A modified metal-organic framework material, comprising a zirconium-based metal-organic framework compound having the formula Zr6(μ3-O)4(μ3-OH)4(benzene-1,3,5-tricarboxylic acid)2(L)x(HCOO)y(OH)6-x-y(H2O)6-x-y, wherein L is a ligand selected from the group consisting of at least one of a sulfonic acid group, a sulfonate group, and combinations thereof, 0<x≤6 and y=6−x, wherein the at least one sulfonic acid group, at least one sulfonate-containing group, or combinations thereof, are selected from:

OG Complex Work Unit Chemistry

OG Complex Work Unit Chemistry