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The complete structure of [2]benzopyrano[3,4-b]quinoxalin-5-one 1, also named isochromeno[3,4-b]quinoxalin-5-one, was established unequivocally by a single crystal X-ray analysis. Its process of formation probably included the autoxidation of the isoindole moiety of 6-chloro-isoindolo[2,1-a]quinoxaline 2 followed by a deshydratation and oxidation leading to a non isolated acid. Then a subsequent rearrangement...
The explorative lanthanide coordination chemistry of 4′,5′-bis-(propylthio)tetrathiafulvenyl[i]dipyrido[3,2-a:2′,3′-c]phenazine (TTF-dppz) is described. Thereby, four new Ln(III) complexes, [Ln(NO 3 ) 3 (TTF-dppz) 2 ] with Ln(III)=Nd (1), Eu (2), Gd (3), Tb (4), have been prepared and characterized. An X-ray crystallographic study of [Gd(NO 3 ) 3 (TTF-dppz)...
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