Conformation of hydrogen peroxide

Structures A B and C represent different conformations of hydrogen peroxide Conformations are different spatial arrangements of a molecule that are generated by rotation about single bonds Although we can t tell from simply looking at these struc tures we now know from experimental studies that C is the most stable conformation... 

In this paper, the effect of the pseudopotential term, arising from the quantum mechanical correction to classical mechanism (V ), on the torsional levels of hydrogen peroxide and deuterium peroxide is evaluated. The V operator, depends on the first and second derivatives with respect to the torsional coordinate of the determinant of the g inertia matrix and on the first derivatives of the B kinetic energy parameter of the vihrational Hamiltonian. V has heen determined for each nuclear conformation from the optimized coordinates obtained using MP2/AUG-cc-pVTZ ah initio calculations. 

Acid-catalyzed condensation of bicyclic ozonides with aldehydes and ketones, in the presence of hydrogen peroxide, leads to the formation of bicyclic peroxide analogs of acetals in low yields, as shown in equation 91 for the condensation of the ozonide of 1-phenylcyclopentene (266) with benzaldehyde. The structure of compound 267, with the preferred ring conformation as shown, was determined by XRD analysis . The same method served to demonstrate that the condensation compound 16c is unique, with structure 254 . 

Problem 4.5 (a) Which of the following compounds can exist in different conformations (1) hydrogen peroxide, HOOH (2) ammonia, NH, (3) hydroxylamine, HjNOH (4) methyl alcohol. H,COH. (b) Draw two structural formulas for each compound in (a) possessing conformations. ... 

Ferraro and coll, used canonical transformation of the Hamiltonian to resolve the average optical rotatory power of a molecule into atomic contributions, based on the acceleration gauge for the electric dipole, and/or the torque formalism [151], This method has been applied to the study of the conformational profile of the optical rotatory poser of hydrogen peroxide and hydrazine [152]. 

Berkessel A, Adrio JA (2004) Kinetic studies of olefin epoxidation with hydrogen peroxide in l,l,l,3,3,3-hexafluoro-2-propanol reveal a crucial catalytic role for solvent clusters. Adv Synth Catal 346 275-280 Berkessel A, Adrio JA (2006) Dramatic acceleration of olefin epoxidation in fluorinated alcohols activation of hydrogen peroxide by multiple H-bond networks. J Am Chem Soc 128 13412-13420 Berkessel A, Adrio JA, Huttenhain D, Neudorfl JM (2006a) Unveiling the booster effect of fluorinated alcohol solvents aggregation-induced conformational changes, and cooperatively enhanced H-bonding. J Am Chem Soc 128 8421-8426... 

Although reactions such as these which involve radicals would conform to the pattern of hydrogen peroxide reactions in other oxidizing and reducing systems, they fall short in certain respects. Thus consider the... 

The catalytic decomposition of hydrogen peroxide on solid and colloidally dispersed metals has been studied particularly by Bredig et al. (20). These reactions have been treated by Weiss (21) from the point of view of the radical mechanism. On the basis of the electron theory the metal can be considered both as a source and as a sink of electrons. In conformity with the electron transfer processes outlined above, the reactions at the surface of the metal catalyst can be considered to be represented by processes of the type ... 

The oxidations of hydrogen peroxide and hydroxylamine by pentacyano-cobaltate(ii) have been examined. The reactions conform to the stoi-cheiometry... 

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