Asymmetrically decorated POM framework formed by a chiral polyanion. Issue 3 (1st February 2017)

• Record Type: Journal Article
• Authors: Wu, Qiong; Wu, Wei; Wang, Baoling; Qiao, Yongfeng; Ju, Hongping; Liu, Yuqiang; Wang, Hai
• Is Part Of: Journal of coordination chemistry. Volume 70:Issue 3(2017)
• Page Start: 381
• Page End: 391
• Publication Date: 2017-02-01
• Subjects: Polyanion -- asymmetrically decorating -- single molecular magnet -- photocatalysis; Coordination compounds -- Periodicals; 541.2242
• DOI: 10.1080/00958972.2016.1262539
• Languages: English
• ISSNs: 0095-8972

Abstract

Abstract: Reactions of NaH2 AsO4 with C-type polyanion precursor lead to a new compound, (NH4 )15 [As2 Fe6 Mo22 O85 AsO2 (OH)2 ]·31.5H2 O (1 ). Compound1 was characterized by elemental analysis, infrared spectra, thermogravimetric analysis, and single-crystal X-ray diffraction. Structural analysis reveals that AsO2 (OH) 2− asymmetrically decorated the POM framework, constituting the first inorganic anion asymmetrically decorating a POM. AC measurements of the frequency-dependent χ ′′ below 5 K indicated a slow magnetization relaxation in1, resembling typical single-molecule-magnet behavior. Photocatalytic experiments indicated that introduction of AsO2 (OH) 2− may offer new active sites and enhanced the overall photocatalytic activity compared with the C-type precursor. Abstract :