Abstract
A weak intramolecular interaction has been found between anN,N-dimethylbarbituric acid ring and an aromatic system connected by an aliphatic chain, and has been studied by UV-VIS and NMR spectroscopy. ΔH and ΔS values have been determined from the temperature dependence of chemical shifts.
Zusammenfassung
Eine schwache intramolekulare Wechselwirkung zwischenN,N-Dimethylbarbitursäure und einem mit ihr über eine aliphatische Kette verbundenen aromatischen Ring wurde mittels UV-VIS- und NMR-Spektroskopie untersucht. Aus der Temperaturabhängigkeit der chemischen Verschiebung wurden die thermodynamischen Daten der Wechselwirkung bestimmt.
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Haslinger, E., Kalchhauser, H. & Wolschann, P. Intramolecular interactions II. Monatsh Chem 113, 633–640 (1982). https://doi.org/10.1007/BF00800269
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DOI: https://doi.org/10.1007/BF00800269