Synthesis of phosphonosulfonic acid building blocks as linkers for coordination polymers. (26th July 2017)

• Record Type: Journal Article
• Authors: Beyer, O.; Homburg, T.; Albat, M.; Stock, N.; Lüning, U.
• Is Part Of: New journal of chemistry. Volume 41:Number 17(2017)
• Page Start: 8870
• Page End: 8876
• Publication Date: 2017-07-26
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c7nj01697b
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Ten benzene based linkers containing sulfonic and phosphonic acids have been synthesized. One lanthanum MOF was isolated and characterized. Abstract : Ten aromatic building blocks (8–11, 23–28 ) containing phosphonic and sulfonic acid groups within one molecule were synthesized. Twofold nucleophilic substitution starting from 1, 2, 4, 5-tetrakis(bromomethyl)benzene (1 ) followed by hydrolysis gave building blocks8–11 . To obtain building blocks23–28, the respective bromobenzenesulfonic acids13, 16, 18–20 and22 had to be synthesized first. Palladium-catalysed cross coupling with triethylphosphite followed by hydrolysis gave the desired building blocks with phosphonic and sulfonic acid groups. Building block9 was successfully used as a linker for the synthesis of a new La-based CP with the composition [La2 (H2 L)1.5 (H2 O)4 ].