Construction and catalytic activities of polyoxometalate-based compound containing helical chains. Issue 3 (1st February 2017)

• Record Type: Journal Article
• Authors: Sha, Jing-Quan; Yang, Xi-Ya; Sun, Long-Jiang; Li, Shu-Xian; Sheng, Ning; Li, Ji-Shen
• Is Part Of: Journal of coordination chemistry. Volume 70:Issue 3(2017)
• Page Start: 392
• Page End: 403
• Publication Date: 2017-02-01
• Subjects: Polyoxometalates -- supramolecule -- helix -- acid-catalysis -- oxidation-catalysis; Coordination compounds -- Periodicals; 541.2242
• DOI: 10.1080/00958972.2016.1266619
• Languages: English
• ISSNs: 0095-8972

Abstract

Abstract: A polyoxometalate-based, inorganic–organic hybrid compound containing a helical structure along the a axis, [Ag(pyttz)2 ][H2 PW12 O40 ]·2H2 O ( p- pyttz = 3-(pyrid-4-yl)-5-(1H-1, 2, 4-triazol-3-yl)-1, 2, 4-triazolyl), has been isolated and structurally characterized. Single-crystal X-ray diffraction analysis reveals that the new compound possesses two helical channels constructed by the left- and right-handed helical chains, respectively, which are fused together through sharing POMs dimer fabricating a 3-D framework with {4 4 ·5 3 ·6 3 } {4 4 ·5 3 ·6 3 } topolopy. The new compound displays good acid-catalytic activity toward the synthesis of Aspirin and good oxidation-catalytic activity to the decomposition of Rhodamine B dye; the catalytic reaction kinetics are discussed. Abstract :