查询词典 vanadyl

It is a original work in the world that using these ligands to coordinate with vanadyl cation to form complexes and the study of the structures along with the anti-diabetic properties, thus provide us opportunity to obtain vanadium drug with the properties of lowering blood sugar significantly and low toxicity, the research will benefit the large number of diabeticpatients, the economic and social benefit will be obvious.

上述配体与氧钒离子形成配合物及结构和抗糖尿病功能的研究在世界上属首创工作，使我们有望制备出具有显著降血糖功能且低毒性的钒类药物，为广大糖尿病患者带来福音，产生明显的经济效益和社会效益。

The axial interaction of vanadyl meso-tetraphenylporphyrin and nickel meso-tetraphenylporphyrin with different Lewis basic solvents was investigated by using an ultraviolet-visible spectrophotometric method.

应用紫外可见分光光度法研究了氧钒对四苯基卟啉和镍对四苯基卟啉与Lewis碱性溶剂的轴向配位作用。

Keywords vanadyl pyrophosphate;catalyst;additives;selective oxidation;maleic anhydride

氧钒基焦磷酸盐；催化剂；添加剂；选择性氧化；顺酐

The CSD process was improved by using vanadium inorganic salt instead of the original vanadyl acetylacetonate.It has successfully solved the problem that the metal alkoxides are pricey and difficult to keep.

主要研究结果如下：(1)采用化学溶液沉积法，分别在LaNiO3/Si(100)、Pt/TiO2/SiO2/Si(100)衬底上制备了c轴取向的高质量BVO薄膜。

In theabsorption spectra, the wavelength of Q band of vanadyl phthalocyaninesis longer than that of copper phthalocyanines; and it will bebathochromic shift when the substituent is in 1 or 4-position other than 2 or3-position or when eletron-donor substituents are introduced into the rings of Pcs.

此外，在溶液中，2或3位取代的长链烷酰胺基氧钒酞菁和铅酞菁主要以聚集体形式存在，而其它酞菁化合物则以单体形式为主，上述长链酞菁均能通过旋涂法制成纯化合物的薄膜。

Absorption spectra of soluble vanadyl phthalocyanine .

可溶性钒氧酞菁在不同介质中的吸收光谱研究。

Vanadyl phthalocyanine ; transient photovoltage ; organic dye film ; sandwich cell

钒氧酞菁；光电压；有机染料膜；夹心电池

According to Johnson's Rule and IR spectra, their possible structures are suggested. The bonding parameters of those complexes are calculated by ESR parameters. And the crystal field parameters are calculated by using electronic spectral data. It can be seen that the vanadyl complexes in the solution are ionic complexes and that the α〓 values of those complexes decrease following the increasing of the N donor replacing the O donor of water on the equatorial plane in those complexes. This means that the covalent bonding between vanadium and ligand increases as Ser, Phen or Bipy replace water ligands. The results show the competitive coordinate law that the coordination reactivity of Phen and Bipy is much stronger than that of Ser. The simulation program of ESR is compiled by the theory of ESR in the present work.

测定了VO-丝氨酸二元体系、VO-丝氨酸-邻菲咯啉三元体系和VO-丝氨酸联吡啶三元体系在不同酸度下（pH=1.0～14.0）的乙二醇／水（V／V=1：1）溶液低温ESR谱，发现不同pH下，溶液中具有不同组成的配合物，根据不同pH下ESR谱的变化，利用Johnson的加合规则并结合红外光谱，推测了它们在溶液中的可能结构；利用波谱参数计算了配合物键参数；利用电子光谱数据计算了配合物的晶体场参数，讨沦了它们的成配特性，结果表明：VO配合物属离子型配合物，随取代水分子的配体（Ser、Phen或Bipy）数目增加，键参数减小，配合物共价性增强，同时得出这些体系中，生物配体竞争配位规律：Phen和Bipy与VO的配位能力比Ser强。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。