Composite host lattices of 4, 4′‐sulfonyldibenzoate water/boric acid in two tetrapropylammonium inclusion compounds. Issue 9 (21st August 2018)

• Record Type: Journal Article
• Authors: Wu, Xiangxiang; Zeng, Huahui; Yang, Yunxia
• Is Part Of: Acta crystallographica. Volume 74:Issue 9(2018)
• Page Start: 1026
• Page End: 1031
• Publication Date: 2018-08-21
• Subjects: 4, 4′‐sulfonyldibenzoic acid -- inclusion compound -- crystal structure -- hydrogen bond -- ancillary small molecule -- boric acid; Crystallography -- Periodicals; Crystals -- Periodicals; 548.3
• DOI: 10.1107/S2053229618011580
• Languages: English
• ISSNs: 2053-2296

Abstract

Abstract : In two inclusion compounds of 4, 4′‐sulfonyldibenzoate and tetrapropylammonium with various small ancillary molecules, an isolated hydrogen‐bonded tetramer is constructed in one and a ribbon is constructed in the other. Although the host anion and guest cation are the same, the difference in the ancillary small molecules results in different structures, indicating the significance of ancillary molecules in the formation of crystal structures. Abstract : Two novel inclusion compounds of 4, 4′‐sulfonyldibenzoate anions and tetrapropylammonium cations with different ancillary molecules of water and boric acid, namely bis(tetrapropylammonium) 4, 4′‐sulfonyldibenzoate dihydrate, 2C12 H28 N + ·C14 H8 O6 S 2− ·H2 O (1 ), and bis(tetrapropylammonium) 4, 4′‐sulfonyldibenzoate bis(boric acid), 2C12 H28 N + ·C14 H8 O6 S 2− ·2H3 BO3 (2 ), were prepared and characterized using single‐crystal X‐ray diffraction. In the two salts, the host 4, 4′‐sulfonyldibenzoic acid molecules, which are converted to the corresponding anions under basic conditions, can be regarded as proton acceptors which link different proton donors of the ancillary molecules of water or boric acid. In this way, an isolated hydrogen‐bonded tetramer is constructed in salt1 and a ribbon is constructed in salt2 . The tetramers and ribbons are then packed in a repeating manner to generate various host frameworks, and the tetrapropylammonium guest counter‐ions are contained in the cavities of the host lattices to give the final stable crystal structures. In these two salts, although the host anion and guest cation are the same, the difference in the ancillary small molecules results in different structures, indicating the significance of ancillary molecules in the formation of crystal structures.