โ Scribed by Wayne M. Flicker; Oren A. Mosher; Aron Kuppermann
No coin nor oath required. For personal study only.
Low-l;ring triplet electronic states have been detected in furan, thiophenc, and pyrrole by the method of variable-angle, electron-impact spectroscopy. Singlet + triplet trnnsitions CCCU~ with maximum intensity at 3.99 eV and 5.22 eV in furan, 3.75 eV and 4.62 CV in thiophene, and 4.21 eV in pyrrole. A weak transition at 5.22 eV in pyrroIe is assiged as the loWeSt observed singlet + singlet excitation in that molecule.
๐ SIMILAR VOLUMES
Lcw-ertergy (0-3 V above threshold) electron-impact excitation specka and transmission spectra are present& for thiophene, furan and pyrrole. For each molecule two low-lying triptet states are reparted. An additional new transition รฑas been observed in ihiophene at 6.5 ev. Assignments are suggested
Nine heterocyclic oxamic acid derivatives were synthesized and tested in the rat passive cutaneous anaphylactic assay as potential antiallergy agents. Some compounds also were tested for their effects on cholesterol-lipoprotein levels and for diuretic, antidiabetic, and antifertility activities in r