New discoveries in chemical research and development in 2021. As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world. 85-61-0, Name is Coenzyme A, molecular formula is C21H36N7O16P3S. In an article, author is GLEITER, R,once mentioned of 85-61-0, Safety of Coenzyme A.
The six donor-acceptor spiro compounds spiro[1,3-dioxolane-2,2′-indan]-1′,3′-dione (8), spiro[indan-2,2′-[1,3]oxathiolane]-1,3-dione (9), spiro[1,3-dithiolane-2,2′-indan]-1′,3′-dione (10), spiro[1,3-benzodioxole-2,2′-indan]-1′,3′-dione (11), 5-methylspiro[1,3-benzodithiole-2,2′-indan]-1′,3′-dione (12), and spiro[indan-2,2′-naphtho[2,3-d]-1,3-dioxole]-1,3-dione (13) have been prepared. Their He(I) photoelectron spectra and their UV/Vis spectra have been investigated. A comparison between the first PE bands of the spiro compounds and the corresponding fragments indicates only a very weak interaction between both parts. The UV/Vis spectra of 11-13 show a moderate long-wavelength shift of the first band as compared to 1,3-indandione. This band is assigned to a transition from the HOMO(pi), localized at the donor fragment, to the LUMO(pi*) of the acceptor moiety (charge transfer). X-ray investigations of 8-10 and 13 show no interaction between the two perpendicularly arranged moieties.
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Reference:
1,3-Benzodioxole – Wikipedia,
,Dioxole | C3H4O2 – PubChem