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Showing 1 to 20 of 285 for “"Photochemistry"”.
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Photochemistry of metalloporphyrins
… has prompted our current investigations into the photochemistry of several metalloporphyrin oxoanion complexes. The use of photochemistry with model systems in the laboratory opens new avenues for the direct production of proposed active species in the biological systems.
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I. Solution Photochemistry of Camphor II. Synthesis and Solution Photochemistry of 2, 2-Dimethylcyclobutanone
<p>I. Solution Photochemistry of Camphor<br>Irradiation of camphor in solutions of 95% ethanol or n-heptane produces mainly α-campholenic aldehyde. In ethanol a bicyclic acetal is also formed, while in n-heptane a bicyclic enol ether is formed instead of the acetal. Deuterium labelling experiments …
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Elucidation of Reactions in Organic Photochemistry
Organic photochemistry is a unique discipline which allows for reactivity that is unavailable in the ground state. 1,2-Dialkoxy anthraquinones exhibit photochemistry which releases an alkane functional group from the 1-position and forms a dimer from the anthraquinone moiety. This reactivity is …
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Asymmetric induction in solid state photochemistry
… as well as in the solid state. In addition, the photochemistry of the methyl and ethyl esters of the carboxylic acids was also investigated. The photochemistry of some of these dibenzobarrelene derivatives was found to be medium-dependent. Possible structure-reactivity correlations for these …
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Electrochemistry and photochemistry of sulphonium salts
The cleavage in aqueous solution of the C-S+ bond in a series of related sulphonium salts having a benzyl ligand has been investigated: (i) electrochemically (ground state), (ii) photochemically (excited state). (i) Most of the sulphonium salts examined reduced in the same general manner: the …
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The aqueous photochemistry of 4-chlorophenol
The photochemistry of 4-chlorophenol has been studied in aqueous solution as a function of pH, 4-chiorophenol concentration and oxygen concentration. Solutions of 4-chlorophenol in the concentration range around 5 x 10-4 mol dm-3 have been photolysed by being subjected to a series of microsecond …
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Spectroscopy, Electrochemistry and Photochemistry of Phenylazonaphthalene Dyes
The spectroscopy, electrochemistry and photochemistry of seven 2-(4-R-phenylazo)naphthalene-4,8-disulfonate dyes (R-Span dyes), were studied to report on their structure and reactivity in water. The dyes differ in their structure by only the R substituent attached to the phenyl ring, representing a …
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Photochemistry and Photophysics of Octahedral Ruthenium Complexes
The photo-induced ligand loss of the complexes [Ru(tpy)(AN)<sub>3</sub>]<sup>2+</sup> and cis-[Ru(tpy)(AN)<sub>2</sub>Cl]<sup>+</sup> (tpy = 2,2`:6`2``-terpyridine) and [Ru(tpy)(5CNU)<sub>3</sub>]<sup>2+</sup> was studied in water and in CH<sub>2</sub>Cl<sub>2</sub> in the presence of chloride from …
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Solution photochemistry of derivatives of Michler's Ketone
A series of analogues of 4,4-bisdimethylaniinobenzophenone, Michler's ketone, in which the terminal dimethylamino-groups have been replaced by diethylamino, pyrrolidino, piperidino, N-methylpiperazino and morpholino moieties has been prepared utilising the reaction between an aryl-lithium and a …
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Mercury Sensitized Gas Phase Photochemistry of Norcamphor
Made available in DSpace on 2014-12-09T17:35:54Z (GMT). No. of bitstreams: 1 6808084.pdf: 2697534 bytes, checksum: 7ff430de975ce186757d7e591e6c4ecc (MD5) Previous issue date: 1967
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The photochemistry of 2,4- and 2,6-cyclo-octadienone
… The present investigation dealt with the photochemistry of 2,4-cyclooctadienone and 2,6-cyclooctadienone. Irradiation of 2,6-cyclooctadienone in inert solvents gave tricyclo [3.2.1.04,7] octan-8-one. This compound was conclusively identified by a cleavage reaction to …
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Photochemistry of ethylene with infrared and ultraviolet radiation
Abstract not available.
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IR laser photochemistry of alkanols and 3,3-dimethyloxetane
In this work, a pulsed CO₂ laser was used to excite methanol, ethanol, propan-2-ol, butan-2-ol, t-butanol, pentan-2-ol, hexan-2-ol, and 3,3-dimethyloxetane in order to study how these moleCUles absorb laser energy and decompose. The dependence of absorbed energy and fractional yield on laser …
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