Výsledky vyhledávání - "Roger S. Pilkington"

The preparation and X-ray crystal structures of 4-methyl-1,3,2-dithiazolium hexafluoroarsenate(V) and 5-methyl-1,3,2,4-dithiadiazolium hexafluoroarsenate(V) and their reduction to stable free radicals

Autor: Jack Passmore, Roger S. Pilkington, Leslie H. Sutcliffe, Donald Bethell, Gregory K. MacLean, Peter S. White, Melbourne J. Schriver

Publikováno v: Journal of the Chemical Society, Chemical Communications. :807

Acetonitrile, propyne, and acetylene react essentially quantitatively with S2NAsF6 to give the hexafluoroarsenate salts of 5-methyl-1,3,2,4-dithiadiazolium, 4-methyl-1,3,2-dithiazolium, and 1,3,2-dithiazolium respectively, the structures of the forme

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::69c0e616c4909a215dc29e62d78c4356
https://doi.org/10.1039/c39830000807

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Preparation of 1,3,2-dithiazolium hexafluoroarsenate(V), preparation and crystal structures of 5-methyl-1,3,2,4-dithiadiazolium and 4-methyl-1,3,2-dithiazolium hexafluoroarsenate(V) and the reduction of these salts to stable free radicals

Autor: Roger S. Pilkington, M. N. Sudheedra Rao, Gregory K. MacLean, Peter S. White, Jack Passmore, Donald Bethell, Melbourne J. Schriver, Leslie H. Sutcliffe

Publikováno v: Journal of the Chemical Society, Dalton Transactions. :1405

Crystalline CH3[graphic omitted] AsF6–, CH3[graphic omitted] AsF6–, and [graphic omitted] AsF6– were prepared in essentially quantitative yield by the reaction of S2NAsF6 with CH3CN, CH3CCH, and HCCH respectively, in sulphur dioxide solution. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a5b7882f0f210d3799f05ab75be43364
https://doi.org/10.1039/dt9850001405

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Rotational correlation times and radii of dithiazol-2-yl and dithiazolidin-2-yl free radicals

Autor: Roger S. Pilkington, Leslie H. Sutcliffe, Shirley A. Fairhurst

Publikováno v: Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases. 79:439

1,3,2-Dithiazol-2-yl and 1,3,2-dithiazolidin-2-yl radicals have been shown to be useful model compounds for detailed e.s.r. studies of rotational reorientation in liquid and frozen media. Consequently they are also potentially useful spin probes and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bb1dba9a5a07913098d06b80b3ea80f5
https://doi.org/10.1039/f19837900439

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Electron spin resonance investigation of sulphur-33 and nitrogen-15 substituted dithiazol-2-yl and dithiazolidin-2-yl free radicals

Autor: Shirley A. Fairhurst, Roger S. Pilkington, Leslie H. Sutcliffe

Publikováno v: Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases. 79:925

Thermal cyclo-addition reactions of tetrasulphur dinitride with certain alkynes generate a new series of stable free radicals possessing the 1,3,2-dithiazolyl ring. The radicals have simple e.s.r. spectra and are potentially useful spin probes or lab

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c57bbd0c02b69431e764c0c608d6c37c
https://doi.org/10.1039/f19837900925

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Electron spin resonance spectroscopy, stability and spin-probe properties of dithiazolyl, dithiadiazolyl, benzodithiazolyl and disulphenimidyl free radicals

Autor: Roger S. Pilkington, Leslie H. Sutcliffe, Stephen R. Harrison

Publikováno v: Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases. 80:669

A comparative investigation has been made of the e.s.r. spectra of 1,3,2-dithiazol-2-yl, 1,3,2,4-dithiadiazol-2-yl, 1,3,2-benzodithiazol-2-yl and dibenzenesulphenimidyl free radicals, both in solution and in rigid matrices. The powder spectra were an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::04b233c227b724dc7f3073b3db4eb03c
https://doi.org/10.1039/f19848000669

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