Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 20198-19-0, is researched, SMILESS is O=C1NC(N)=NC2=C1C=CC=C2, Molecular C8H7N3OJournal, Chemical Physics called Electronic spectra of some pterins and deazapterins, Author is Wormell, Paul; Gready, Jill E., the main research direction is electron spectra pterin deazapterin; tautomerism electron spectra pterin deazapterin; protonation electron spectra pterin deazapterin.COA of Formula: C8H7N3O.
The electronic absorption spectra of some derivatives of pterin and N5-deazapterin are analyzed using the CNDO/S-CI method, including allowance for solvent shifts. These calculations give good agreement with the spectra, which may be assigned to a group of π*←π transitions. There are some differences between calculated values for gas-phase and solution models but their general level of conformity with experiment is similar. Band shifts caused by Me substitution, protonation and replacement of ring nitrogens are investigated, and a number of structural and spectroscopic problems are addressed. The spectral predictions agree well with exptl. assignments for tautomeric forms and protonation sites for known compounds, and predictions are made for the spectra of N8-deazapterin and N5,N8-dideazapterin which have not been reported.
From this literature《Electronic spectra of some pterins and deazapterins》,we know some information about this compound(20198-19-0)COA of Formula: C8H7N3O, but this is not all information, there are many literatures related to this compound(20198-19-0).
Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis