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Publikováno v:
Journal of the American Chemical Society. 133:5413-5424
This work was undertaken with the aim to obtain direct evidence for the interrelationships between hetarylnitrenes, their ring-expanded cyclic carbodiimide isomers, and ring-opened nitrile ylides. Tetrazolo[1,5-a]quinoxaline 11T and tetrazolo[5.1-c]q
Autor:
Jerome A. Berson, Helen S. M. Lu
Publikováno v:
Journal of the American Chemical Society. 119:1428-1438
Methods are described for the synthesis of bis-diazene precursors of catenated tetraradicals. Photodeazetation in a low-temperature matrix of the N-tosylpyrrole member of the series (13) gives mainly the monodeazetated biradical 34, which is characte
Publikováno v:
Journal of the American Chemical Society. 115:7363-7373
Intrastrand electron and energy transfer between pendant sites in a derivatized 1:1 copolymer of styrene and p-(chloromethyl)styrene have been studied by laser flash photolysis. The polymer [p-PS-Ru[sub 22][sup II]Os[sub 5][sup II]](PF[sub 6])[sub 54
Publikováno v:
Journal of the American Chemical Society. 128(16)
Photolysis of the tetrahedrane Fe2(CO)6(mu-S2) at 450 +/- 35 nm in a Nujol matrix at low temperatures gives an isomer characterized by its nu(CO) infrared frequencies. Comparison of these experimental frequencies with those calculated by density func
Publikováno v:
Journal of the American Chemical Society. 123(24)
The vapor of (chlorocarbonyl)sulfenyl bromide, ClC(O)SBr, was isolated in solid Ar, Kr, N(2), and Ar doped with 5% CO at 15 K, and the matrix was subsequently irradiated with broad-band UV--visible light (200or = lambdaor = 800 nm), the changes being
Autor:
Roger V. Lloyd, David E. Wood
Publikováno v:
Journal of the American Chemical Society. 97:5986-5992
The $beta$-halo-tert-butyl radicals were prepared by x-irradiation of the corresponding isobutyl halides in an adamantane matrix at 77$sup 0$K and their conformations were determined by analysis of their EPR spectra. The radicals are nonplanar at the