Beat over the old ground with new strategy: engineering As···As interaction in arsenite-based Dawson cluster β-[W18O54(AsO3)2(6-.
By reaction of [As2W19O67(H2O)](14-), NiCl2·6H2O, and phen under hydrothermal conditions, a new organic-inorganic tungstoarsenate hybrid [Ni(phen)3]4[As2W18O60]{[Ni(phen)2][H2As2W18O60]}·12H2O (where phen = 1,10-phenanthroline) (1) was obtained via self-assembly and characterized by elemental analysis, infrared (IR) spectroscopy, solid UV-vis absorption spectrum, and single-crystal X-ray diffraction (XRD). An unprecedented 18-tungstoarsenate Dawson cluster, β-[W18O54(AsO3)2](6-), encapsulating two pyramidal arsenite AsO3(3-) anions as templates and exhibiting interesting intramolecular As···As interaction is first achieved. 1 displays a one-dimensional (1D) chain architecture constructed by alternating β-[W18O54(AsO3)2](6-) and nickel(II) complexes [Ni(phen)2)](2+). The resulting hybrid can act as a photocatalyst to prompt the degradation of Rhodamine B (RhB) with excellent efficiency.
Institute of Molecular and Crystal Engineering, School of Chemistry and Chemical Engineering, Henan University , Kaifeng 475004, People's Republic of China.
Qiuxia
Q
Han
Xueping
X
Sun
Jie
J
Li
Pengtao
P
Ma
Jingyang
J
Niu