نتایج جستجو برای: polynuclear complex
تعداد نتایج: 784632 فیلتر نتایج به سال:
This article studies the inhomogeneous geometric polynuclear growth model; distribution of which is related to Schur functions. We explain a method derive its functions in both space-like and time-like directions, focusing on two-time distribution. Asymptotics KPZ-scaling limit then considered, extending two times several single-time distributions KPZ universality class.
polynuclear Aromatic Bydromrbons As criteria for the presence of polynuclear aromatic hydrocarbons in tobacco smoke, the list of J. W. Cook (m) has been widely accepted by tobacco chemists. The Surgeon General’s 1964 Report and Cook’s paper are in agreement with respect to the presence of benzo(a)pyrene (3 : 4benzopyrene) , dibenz (a,h) -anthracene (12 : 5,6-dibenzanthrac) : benzo(c) phenanthre...
The simultaneous addition of phosphate with 2,4-D enhances the toxicity of the latter to A. vinelandii. This enhanced toxicity is related to the magnesium concentration of the environment. The microbiology of coal has received little attention by comparison with the large amount of research on petroleum. Coal is a much more complex organic material than petroleum and probably consists of conden...
The potential of fluorinated tetraolate as a ligand for the synthesis of polynuclear metal complexes has been demonstrated.
Copper complexes obtained from the reactions between 2-thiouracil and cupric hydroxide in different solvents have been investigated. Mononuclear or polynuclear complexes of Cu(I) have been obtained depending on the reaction conditions. Hydroxo complexes of copper(I) have been obtained at pH around 3.5. 2-Thiouracil acts as monoor bidentate ligand in complexes. [Cu(H2TU)2 OH], [Cu5(H2TU)6 (OH)5]...
The aqua ions of palladium(II) and platinum(II) undergo extremely slow hydrolysis in strongly acidic aqueous solution, resulting in polynuclear complexes. The size and structures of these species have been determined by EXAFS and small angle X-ray scattering, SAXS. For palladium(II), the EXAFS data show that the Pd-O and Pd···Pd distances are identical to those of crystalline palladium(II) oxid...
The metabolic activation of several chemical classes of procarcinogens is being studied in cultured human bronchi. Previous studies have shown that carcinogenic polynuclear aromatic hydrocarbons are metabolically activated by the bronchial epithelium. In the study reported here, dimethylnitrosamine and 1,2-dimethylhydrazine were also found to bind to both cellular DNA and protein. Bronchial DNA...
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