Which of the following metal complexes are responsible for the reduction of molecular oxygen? Group of answer choices Fe(III)-Cu(II) complex Fe(III)-Cu(I) complex Fe(II)-Cu(II) complex Fe(II)-Cu(I) complex None of these
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Which of the following metal complexes are responsible for the reduction of molecular oxygen?
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- The decomposition of various substituted benzyl azoxyarenesulfonates in trifluoroethanol was studied. The overall reaction is shown below F3C OH CF3 HO,S + N20 The decomposition of various substituted benzyl azoxyarenesulfonates in trifluoroethanol was studied. The overall reaction is shown below F,C OH HO,S + N,0 Y kobs (S ') 3-CI CH3 3.1 x 10-7 4-CI CH3 2.3 х 10-6 3-CH3 4-CH3 4-OCH3 CH3 CHs 4.7х 10-6 CH3 7.6х 10-6 CH3 6.0 x 10-5 1.7 x 10-3 4-CH OCH3 4.24 x 10-5 4-CH3 4-CH3 4-CH3 CH3 Br 6.0 x 10-5 1.91 x 10-4 CN 4.65 x 10-4 a. Using the data provided, prepare Hammett plots to quantify the effects of the substituents X and Y on the reaction's rate. Attach them to your problem set. b. Based on your Hammett analysis, propose a complete, curved-arrow mechanism for this reaction. Use a sentence or two to explain how your Hammett analyses support your proposed mechanism.Dehalogenase enzymes catalyze the clevage of C-X bonds. One such dehalogenase catalyzes the following reaction. An active site aspartate is thought to carry out the initial nucleophilic attack that expels the chloride. Select the most likely intermediate in the reaction. (Note the stereochemistry. Refer to P11.19 in the textbook if needed.) O O A C D OE -CH₂ H H₂C™ CO₂ H B CO₂ CI N H₂O Cr CO₂ H CO₂ нотум CH3 D CO₂ five N E CH₂Propose a reasonable mechanism, using curved arrow notation, for the reaction performed in this experiment. Your answer should include the following:(1) Decomposition of the 3-sulfolene(2) cycloaddition of 1,3-butadiene with maleic anhydride including the HOMO-LUMO interactions(3) hydrolysis of the anhydride under BASE hydrolysis with NaOH in H2O (consider how this differs from what was done in the experiment)Check attached image.
- The Keq for the reaction of water with water is called Kw H2O + H2O ⇔ H3O+1 + OH-1 [H3O+1][OH-1] Kw = ––––––––––––– = [H3O+1][OH-1] = (1 x 10-7)2 = 1 x 10-14 [H2O]2Psilocybin is a natural product of psychotropic "magic" mushrooms and has the Following structure: HO HO O=0 Psilocybin The pK a Of the first phosphate oxygen is 1.3, the pK. Of the second phosphate oxygen is 6.2, And the pKa Of the tertiary amine is 10.4. What is the average charge of psilocybin when Dissolved in your carbonic acid buffer of pH=6?Give 5 examples of molybdenum complexes. State their physical and chemical properties and their importance or applications. Additional question, what are the oxidation numbers of molybdenum
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- What disulfides would you obtain from oxidation of the following thiols?(a) CH3CH2CH2SH (b) 3-Methylbutane-1-thiol (skunk scent)Identify any combination reactions. (Select all that apply.) C4H10 + O2 → CO2 + H2O S8 + O2 → SO3 NaNO3 → NaNO2 + O2 HgO → Hg + O2 Ga + H2SO4 → Ga2(SO4)3 + H2 AgCl2 + H2 → Ag + HCl none of the above Identify any decomposition reactions. (Select all that apply.) C4H10 + O2 → CO2 + H2O S8 + O2 → SO3 NaNO3 → NaNO2 + O2 HgO → Hg + O2 Ga + H2SO4 → Ga2(SO4)3 + H2 AgCl2 + H2 → Ag + HCl none of the aboveA decapeptide has the following acid composition; Al2,Arg,Cys,Glu,Leu,Phe,Val Partial hydrolysis yield the following tripeptides; Cys-Glu-Leu+Gly-Arg-Cys+Leu-Ala-Ala+Lys-Val-Phe-Gly Reaction of the decapeptide with 2,4-dinitrofluorobenzene yields 2,4-dinitrophenylysine. From the experimental data, deduce the primary structure of the decapeptide. Suggest a scheme you will follow to synthesize the dipeptide Ala-Gly.