منابع مشابه
Electronic coupling mediated by stacked [Thymine-Hg-Thymine] base pairs.
Very recently it has been shown that stable metal-mediated base pairs [Thymine-Hg-Thymine] can form in DNA. To estimate the effect of such pairs on the efficiency of charge transfer through DNA, we carry out quantum mechanical calculations of double-stranded pi-stacks GXG, GXXG, and GXXXG, where X = [Thymine-Hg-Thymine] and stacks GT(n)G of canonical base pairs. The charge-transfer efficiency i...
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The intramolecular photocycloaddition of aryl aldehydes containing allene side chains is a versatile reaction as it provides a rapid and efficient access to original complex structures such as 1,3,4-tetrahydro-1,4-epoxy-5-alkylidene-2-benzoxepines 2 and substituted 2-oxa-tricyclo[5.2.2.0] (1,5)undeca-4,8,10-triene-9-carbaldehydes 3. Novel polycyclic structures are characterized, and optimized s...
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Photochemical processing of aqueous atmospheric brown carbon R. Zhao, A. K. Y. Lee, L. Huang, X. Li, F. Yang, and J. P. D. Abbatt Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, Canada Atmospheric Science and Technology Directorate/Science and Technology Branch, Environment Canada, Toronto, Canada School of Chemistry and Environment, Beihang University, Beijin...
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The classic text book in photochemistry is that of Noyes and Leighton, The Photochemistry of Gases published in 1941. In 1966, a comprehensive volume by Calvert and Pitts brought the field up to date, but it soon became obvious that the field of photochemistry was expanding too rapidly to be covered in a single comprehensive volume. In fact, in the latter part of the 20th century organic photoc...
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The photosensitivity of metal carbonyls has been known almost as long as the class of coordination compounds itself. Among no other group of inorganic compounds may one find so many light-sensitive materials. Hence photochemical reactions of metal carbonyls have found wide applications for synthetic purposes. However, whereas much research has been done to understand the thermal reactions," the...
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ژورنال
عنوان ژورنال: Nature
سال: 1963
ISSN: 0028-0836,1476-4687
DOI: 10.1038/197484a0