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Emission of substituted pyrylium and thiapyrylium salts: Phosphorescence and delayed fluorescence emission in polymeric matrices

Autor: Joseph Pouliquen, J.C. Doty, Jean Kossanyi, J.L.R. Williams, Véronique Wintgens

Publikováno v: Polymer Photochemistry. 6:1-20

Pyrylium and thiapyrylium salts show interesting emission properties when incorporated in a rigid PMMA matrix. In addition to a strong prompt fluorescence emission, the 18 compounds studied show a delayed fluorescence which cannot be observed in solu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4ada42fbbe02b7675905eecf258c71ec
https://doi.org/10.1016/0144-2880(85)90002-8

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Boron photochemistry IV. A stable triarylborane from the photolysis of potassium dimesityldiphenylborate

Autor: T.H. Regan, B.E. Babb, Jack L R Williams, J.C. Doty, P.J. Grisdale, D.P. Maier

Publikováno v: Journal of Organometallic Chemistry. 14:63-72

We have photolyzed potassium dimesityldiphenylborate in 1,2-dimethoxy ethane/water solution with light in the region of 2537 A in the presence of air. The products were phenol (VI), 2-hydroxymesitylene (VII), 2,4,6-trimethylbiphenyl (VIII), and (2,4,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::42b7d2beedde29811c4060284f6fbea5
https://doi.org/10.1016/s0022-328x(00)92639-1

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Boron photochemistry

Autor: J.C. Doty, B.E. Babb, M.E. Glogowski, P.J. Grisdale, Jack L R Williams

Publikováno v: Journal of Organometallic Chemistry. 38:229-236

A series of p -substituted phenyldimesitylboranes has been synthesized by reaction of dimesitylboron fluoride with appropriately substituted phenyllithium derivatives. The quantum yields of fluorescence in cyclohexane vary with the nature of the p -s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ec49e3cba51bcb0f72bf88acddfd626e
https://doi.org/10.1016/s0022-328x(00)83321-5

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Boron photochemistry III. Photolysis of some naphthalene-substituted borate complexes

Autor: M.E. Glogowski, P.J. Grisdale, J.C. Doty, D.P. Maier, Jack L R Williams, B.E. Babb

Publikováno v: Journal of Organometallic Chemistry. 14:53-62

The photolysis of two naphthalene-substituted “ate” complexes, lithium tetra-2-naphthylborate and lithium phenyltri-1-naphthylborate, has been carried out in the presence and absence of air. In both cases in the absence of air, the products are d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cbc781d96bcb6f3420d2c1f2d3607cbb
https://doi.org/10.1016/s0022-328x(00)92638-x

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Base strengths of substituted 2- and 4-styrylpyridines in the ground and excited states

Autor: P. J. Grisdale, J.C. Doty, Jack L R Williams

Publikováno v: Canadian Journal of Chemistry. 47:2355-2359

The base strengths of various 2- and 4-styrylpyridines in the ground state and first-excited-singlet state have been determined. The base strengths are found to conform to the Hammett equation if the proper σ values are chosen.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::74b426e7cd71c36fc44807a8f0cddd7c
https://doi.org/10.1139/v69-386

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