Oxidation of benzoin with anchored vanadyl and
... carried out in the absence of catalyst, was very slow and low yields of benzil were obtained even when the reaction was allowed to proceed for a longer time (up to 32 h). Experiments were carried out using (i) the organic polymer without ligand and metal complex and (ii) the organic polymer function ...
... carried out in the absence of catalyst, was very slow and low yields of benzil were obtained even when the reaction was allowed to proceed for a longer time (up to 32 h). Experiments were carried out using (i) the organic polymer without ligand and metal complex and (ii) the organic polymer function ...
A structural comparison of molybdenum cofactor
... families [17], namely the DMSO reductase, xanthine oxidase, sul¢te oxidase, and AOR families. Within each family, sequence similarities are obvious, while no signi¢cant homologies can be detected between members of di¡erent families. This classi¢cation represents a unifying approach in terms of the ...
... families [17], namely the DMSO reductase, xanthine oxidase, sul¢te oxidase, and AOR families. Within each family, sequence similarities are obvious, while no signi¢cant homologies can be detected between members of di¡erent families. This classi¢cation represents a unifying approach in terms of the ...
Nitrate Reductases: Structure, Functions, and Effect of Stress Factors
... been supposed recently that only high-potential clusters are able, for thermodynamic reasons, to transfer electrons, whereas the role of the other two clusters is still unknown. Subunit α (104-150 kD) coded by the narG gene contains the [4Fe-4S] cluster and molybdenum cofactor, just on which the nit ...
... been supposed recently that only high-potential clusters are able, for thermodynamic reasons, to transfer electrons, whereas the role of the other two clusters is still unknown. Subunit α (104-150 kD) coded by the narG gene contains the [4Fe-4S] cluster and molybdenum cofactor, just on which the nit ...
Substrate orientation and the origin of catalytic power in xanthine
... the reaction (in this case, through to formation of the LMoIVO(SH)(OR) intermediate) decreased by two orders of magnitude from 1.97 × 106 M-1s-1 to 1.34 × 104 M-1s-1. At face value, the effect on kred and Kd is such that the interaction between Glu 232 and substrate provides some 3 kcal/mol of free ...
... the reaction (in this case, through to formation of the LMoIVO(SH)(OR) intermediate) decreased by two orders of magnitude from 1.97 × 106 M-1s-1 to 1.34 × 104 M-1s-1. At face value, the effect on kred and Kd is such that the interaction between Glu 232 and substrate provides some 3 kcal/mol of free ...
Reaction of niobium with water
... procedure yields 98% pure niobium oxide in one phase and a 99.5% pure tantalum oxide in another. After conversion to the oxide, metallic tantalum can be made by reduction with sodium or carbon. Electrolysis of molten fluorides is also used. ...
... procedure yields 98% pure niobium oxide in one phase and a 99.5% pure tantalum oxide in another. After conversion to the oxide, metallic tantalum can be made by reduction with sodium or carbon. Electrolysis of molten fluorides is also used. ...
Molybdenum Complexes with Amino Acids as
... solution of Mo(V)chloride (0.2722 g, 1mmol), NaOH 0.1M was added to adjust the pH. The ligand solution of Glutamic acid then was added (3mmol). The resulting mixture was stirred under reflux for 1h and 80°C. The precipitate product was collected by Buchner filtration, washed with water, and dried in ...
... solution of Mo(V)chloride (0.2722 g, 1mmol), NaOH 0.1M was added to adjust the pH. The ligand solution of Glutamic acid then was added (3mmol). The resulting mixture was stirred under reflux for 1h and 80°C. The precipitate product was collected by Buchner filtration, washed with water, and dried in ...
File
... • At least 25 selenoproteins have been identified, but the metabolic functions have been identified for only about one-half of them ...
... • At least 25 selenoproteins have been identified, but the metabolic functions have been identified for only about one-half of them ...
Trace Minerals - Pure Encapsulations
... Cellular Function: Many minerals are important enzyme cofactors for numerous processes, including cellular energy production and the synthesis of hormones, neurotransmitters and DNA. This formula provides these trace minerals in a balanced combination, without macro minerals, to promote optimal bioa ...
... Cellular Function: Many minerals are important enzyme cofactors for numerous processes, including cellular energy production and the synthesis of hormones, neurotransmitters and DNA. This formula provides these trace minerals in a balanced combination, without macro minerals, to promote optimal bioa ...
Purine & Pyrimidine Disorders: Clinical Aspects
... • Crude form of enzyme replacement therapy ? Possible explanation: inflammatory reaction leading to up-regulation of HPRT gene expression and increase in ...
... • Crude form of enzyme replacement therapy ? Possible explanation: inflammatory reaction leading to up-regulation of HPRT gene expression and increase in ...
Molybdenum, Molybdenum in Drinking-water
... out by the International Programme on Chemical Safety, in its Environmental Health Criteria monographs and Concise International Chemical Assessment Documents, the International Agency for Research on Cancer, the Joint FAO/WHO Meetings on Pesticide Residues and the Joint FAO/WHO Expert Committee on ...
... out by the International Programme on Chemical Safety, in its Environmental Health Criteria monographs and Concise International Chemical Assessment Documents, the International Agency for Research on Cancer, the Joint FAO/WHO Meetings on Pesticide Residues and the Joint FAO/WHO Expert Committee on ...
Chem+174–Lecture+4b+..
... Catalytic experiments The Mo-compounds are tested as catalysts in the air oxidation ...
... Catalytic experiments The Mo-compounds are tested as catalysts in the air oxidation ...
A1981LW60900001
... marginal lands during the national ploughing-up campaign. I was told to produce effects of all possible nutritional disorders in any chosen crop using sand culture on an unprecedented scale. Being young, inexperienced, and unaware that my senior predecessor had departed at the prospect, I saw no pro ...
... marginal lands during the national ploughing-up campaign. I was told to produce effects of all possible nutritional disorders in any chosen crop using sand culture on an unprecedented scale. Being young, inexperienced, and unaware that my senior predecessor had departed at the prospect, I saw no pro ...