Controllable Synthesis of Lindqvist Alkoxopolyoxovanadate Clusters as Heterogeneous Catalysts for Sulfoxidation of Sulfides
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https://figshare.com/articles/dataset/Controllable_Synthesis_of_Lindqvist_Alkoxopolyoxovanadate_Clusters_as_Heterogeneous_Catalysts_for_Sulfoxidation_of_Sulfides/4900472
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资源简介：
Six alkoxohexavanadate-based
Cu- or Co-POVs [Cu(dpa)(acac)(H2O)]2[V6O13(OMe)6] (1), [Cu(phen)(acac)(MeOH)]2[V6O13(OMe)6] (2), [Co(dpa)(acac)2]2[V6O13(OMe)6]·2MeOH (3), [Co(phen)(acac)2]2[V6O13(OMe)6] (4), [Cu(dpa)(acac)]2[VIV2VV4O12(OMe)7]
(5), and [Cu(dpa)(acac)(MeOH)]2[VIV2VV4O11(OMe)8] (6) (POV = polyoxovanadate; dpa = 2,2′-dipyridine
amine; phen = 1,10-phenanthroline; acac = acetylacetone anion) have
been synthesized by controlling the reaction conditions and characterized
by single-crystal X-ray diffraction and powder X-ray diffraction analyses,
FT-IR spectroscopy, element analyses, and X-ray photoelectron spectroscopy.
In compounds 1–4 and 6, Cu or Co complexes and alkoxohexavanadate anions are assembled
through electrostatic interactions. Differently, in compound 5, seven-methoxo-substituted Lindqvist-type [V6O12(OMe)7]2– are bridged
to Cu complex via terminal O atoms by coordination bonds. All compounds 1–6 exhibit excellent heterogeneous catalytic
performance in oxidative desulfurization and CEES ((2-chloroethyl)
ethyl sulfide, a sulfur mustard simulant) abatement with H2O2 as oxidant. Among them, the catalytic activity of 6 [conv. of DBT (dibenzothiophene) up to 100% in 6 h; conv.
of CEES reached 100% and selectivity of CEESO ((2-chloroethyl) ethyl
sulfoxide) up to 85% after 4 h] outperforms others and can be reused
without losing its activity.
创建时间：
2017-04-21
