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Application research of Niobium chloride

2019-01-11
Niobium chloride, yellowish white monoclinic crystal.Soluble in alcohol and hydrochloric acid.It dissolves in water.Easy deliquescence.The breakdown of hydrogen chloride in moist air.By five niobium oxide hydrate dry, slowly add new distillation of thionyl chloride, reaction at room temperature, by centrifugal sedimentation, the undissolved hydration five niobium oxide and yellow crystalline compounds (six or niobium acid ammonium chloride) separation, at room temperature and under low vacuum consecutive hours make thionyl chloride vacuum evaporation segregation chloride niobium, necessary to products on the vacuum sublimation of about 150 ℃, further purification.
 
A simple and economical technique for the synthesis of quinoxalines derivatives has been developed. All the reactions were applied in presence of atomic number 41 (V) chloride at acetonitrile reflux conditions. the strategy is applicable to a range of diketones and one, 2-phenylenediamines to afford the corresponding derivatives in wonderful yields.

NbCl5 was studied with extended X-ray absorption spectrum line spectrometry (EXAFS) in acidic and basic metallic element chloride/1-ethyl-3-methyl imidazolium chloride (EMIC) ionic liquids. though anhydrous Nb2Cl10 is additional soluble within the basic soften than within the acidic soften, the EXAFS knowledge shows that the coordination shell round the atomic number 41 doesn't amendment within the completely different ionic liquids. each the acidic and basic melts show a coordination of 5 chlorides within the 1st shell. this means that during this series of ionic liquids, the Nb2Cl10 breaks up into 2 NbCl5 entities in each the acidic and also the basic melts.


Shaohua Shen and colleagues, Xi’an Jiaotong University, China, have created Nb-doped haematite photoanodes with improved performance. The team ready α-Fe2O3nanorod arrays employing a gentle resolution|solution} technique with atomic number 41 chloride (NbCl5) directly superimposed to the precursor solution, followed by high-temperature tempering.

 
Niobium pentachloride plays an important role in organic synthesis.Niobium chloride catalyzes large amounts of oxygen.Most of the reactions have mild conditions, short time, high yield, low amount of catalyst, simple operation, and have certain.Stereo and location selectivity.We believe that with the unremitting efforts of chemical workers and in-depth study of niobium chloride.It will be widely used in organic synthesis.