Cyclohexane oxidation continues to be a challenge
... conditions, while the H2 O2 conversion remained constant. Thus, the oxidation occurs not only with H2 O2 as an oxidizing agent, but also with O2 formed in situ, resulting in turnovers and conversions considerably higher than those reported for TS-1 [29,30]. A concentration of 2.5 mol l−1 of cyclohex ...
... conditions, while the H2 O2 conversion remained constant. Thus, the oxidation occurs not only with H2 O2 as an oxidizing agent, but also with O2 formed in situ, resulting in turnovers and conversions considerably higher than those reported for TS-1 [29,30]. A concentration of 2.5 mol l−1 of cyclohex ...
Acid-Base Biochemistry
... acids and bases are related to the concentration of hydrogen ions present. Acids increase the concentration of hydrogen ions, while bases decrease the concentration of hydrogen ions (by accepting them). The acidity or basicity of something therefore can be measured by its hydrogen ion concentration. ...
... acids and bases are related to the concentration of hydrogen ions present. Acids increase the concentration of hydrogen ions, while bases decrease the concentration of hydrogen ions (by accepting them). The acidity or basicity of something therefore can be measured by its hydrogen ion concentration. ...
The Nomenclature of Polyoxometalates: How To Connect a Name
... does not provide easy solutions if any. A recent example is given by fullerenes. Who could understand at its base what such a name means, except for maybe some architects, who are, by the way, not so much interested in chemistry except in its applications. Another origin of trivial names resulted in ...
... does not provide easy solutions if any. A recent example is given by fullerenes. Who could understand at its base what such a name means, except for maybe some architects, who are, by the way, not so much interested in chemistry except in its applications. Another origin of trivial names resulted in ...
Bonding Capabilities of Transition Metal
... clusions we reached for M(CO)n fragments would hold for other ligands as well. It will be seen later that, while the methodology is the same, the results for an MLn fragment with L = K donor can be quite different from our carbonyl case. The fragment geometries we explored are derived from the octah ...
... clusions we reached for M(CO)n fragments would hold for other ligands as well. It will be seen later that, while the methodology is the same, the results for an MLn fragment with L = K donor can be quite different from our carbonyl case. The fragment geometries we explored are derived from the octah ...
Leaching and recovery of platinum group metals from UG-2
... were obtained with the oxidative roast in the case of chloride leaching (6M HCl/chlorine, 90°C)1: Pt (94–98 per cent), Pd (92–99 per cent), Rh (69–95 per cent). Improved leaching was attributed to formation of native metals and alloys such as Pt-Fe, Pd-Cu-Fe, Pt-Pd-Fe, Pt-Rh-Fe-Ni and Pd-Pb from PGM ...
... were obtained with the oxidative roast in the case of chloride leaching (6M HCl/chlorine, 90°C)1: Pt (94–98 per cent), Pd (92–99 per cent), Rh (69–95 per cent). Improved leaching was attributed to formation of native metals and alloys such as Pt-Fe, Pd-Cu-Fe, Pt-Pd-Fe, Pt-Rh-Fe-Ni and Pd-Pb from PGM ...
Ans:- (i) Gluconic acid - Kendriya Vidyalaya No.2, Kribhco, Surat
... Ans: Negative type of deviation is present. In the negative deviation the solute-solution (A-A) interaction and solvent-solvent (B-B) interaction will be weaker than solute-solvent(A-B ) interaction. Since the new forces are stronger therefore heat is evolved and solution becomes warm. Q13. Which ty ...
... Ans: Negative type of deviation is present. In the negative deviation the solute-solution (A-A) interaction and solvent-solvent (B-B) interaction will be weaker than solute-solvent(A-B ) interaction. Since the new forces are stronger therefore heat is evolved and solution becomes warm. Q13. Which ty ...
Old Clusters with New Function: Oxidation Catalysis by High
... In the context of Mn oxidation state, the high-symmetry Mn12 molecule contains two types of high-oxidation Mn ions: the four inner Mn4+ ions (Mn1 in Figure 1) and the eight outer Mn3+ ions that separate into two groups of four by S4 symmetry (Mn2 and Mn3). Any or all of these three groups of Mn ions ...
... In the context of Mn oxidation state, the high-symmetry Mn12 molecule contains two types of high-oxidation Mn ions: the four inner Mn4+ ions (Mn1 in Figure 1) and the eight outer Mn3+ ions that separate into two groups of four by S4 symmetry (Mn2 and Mn3). Any or all of these three groups of Mn ions ...
Chapter 21 Transition Metals and Coordination Chemistry
... Copyright ©2017 Cengage Learning. All Rights Reserved. ...
... Copyright ©2017 Cengage Learning. All Rights Reserved. ...
The separation of zirconium and hafnium from (NH4) 3Zr (Hf) F7
... No significant extraction was attained when using either Alamine 336 (where emulsion formation was observed above 6 mol/dm3) or Uniquat 2280 when extracting mixed salts compared to the >90% extraction achieved when using single salts. The differences in extractions for the various extractants could ...
... No significant extraction was attained when using either Alamine 336 (where emulsion formation was observed above 6 mol/dm3) or Uniquat 2280 when extracting mixed salts compared to the >90% extraction achieved when using single salts. The differences in extractions for the various extractants could ...
Metal Ion-Promoted Leaving Group Assistance in the Solvolysis of
... 1.8.1 – Metal ion-promoted LGA in the solvolysis of specially-designed phosphate esters in aqueous and alcohol solvents ...................................................... 51 1.8.2 – Metal ion-promoted LGA in the solvolysis of specially-designed tertiary benzamides in alcohol solvents .......... ...
... 1.8.1 – Metal ion-promoted LGA in the solvolysis of specially-designed phosphate esters in aqueous and alcohol solvents ...................................................... 51 1.8.2 – Metal ion-promoted LGA in the solvolysis of specially-designed tertiary benzamides in alcohol solvents .......... ...
