Protonation of 6aλ 4 Thia1,6diazapentalenes
نویسندگان
چکیده
منابع مشابه
Protonation Thermochemistry of Gaseous 2 , 2 ' - , 4 , 4 ' - and 2 , 4 ' - Bipyridines and 1 , 10 - phenanthroline †
Quantum chemical composite methods G3MP2B3, G3B3, G4MP2 and G4 have been used to calculate enthalpies of formation and gas phase basicities of the title compounds. Comparison of the results with the available experimental heats of formation values reveals correct agreement (to within ≈ 2 kJ/mol) with G3B3 and G4 methods. Systematic errors on the heats of formation of these aromatic molecules ar...
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Light changes the structure of chloroplasts. This effect was investigated by high resolution electron microscopy, photometric methods, and chemical modification. (a) A reversible contraction of chloroplast membrane occurs upon illumination, dark titration with H(+), or increasing osmolarity. These gross structural changes arise from a flattening of the thylakoids, with a corresponding decrease ...
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ژورنال
عنوان ژورنال: Molecules
سال: 1997
ISSN: 1420-3049
DOI: 10.1007/s007830050028