hrcak mascot   Srce   HID

Izvorni znanstveni članak

A Discussion of the Absorption Spectra of Substituted 4-Pyridones and Their 4-Thio Analogues

K. Blažević ; Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia
N. Trinajstić ; Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia

Puni tekst: engleski, pdf (5 MB) str. 25-28 preuzimanja: 42* citiraj
APA 6th Edition
Blažević, K. i Trinajstić, N. (1967). A Discussion of the Absorption Spectra of Substituted 4-Pyridones and Their 4-Thio Analogues. Croatica Chemica Acta, 39 (1), 25-28. Preuzeto s https://hrcak.srce.hr/208104
MLA 8th Edition
Blažević, K. i N. Trinajstić. "A Discussion of the Absorption Spectra of Substituted 4-Pyridones and Their 4-Thio Analogues." Croatica Chemica Acta, vol. 39, br. 1, 1967, str. 25-28. https://hrcak.srce.hr/208104. Citirano 01.03.2021.
Chicago 17th Edition
Blažević, K. i N. Trinajstić. "A Discussion of the Absorption Spectra of Substituted 4-Pyridones and Their 4-Thio Analogues." Croatica Chemica Acta 39, br. 1 (1967): 25-28. https://hrcak.srce.hr/208104
Harvard
Blažević, K., i Trinajstić, N. (1967). 'A Discussion of the Absorption Spectra of Substituted 4-Pyridones and Their 4-Thio Analogues', Croatica Chemica Acta, 39(1), str. 25-28. Preuzeto s: https://hrcak.srce.hr/208104 (Datum pristupa: 01.03.2021.)
Vancouver
Blažević K, Trinajstić N. A Discussion of the Absorption Spectra of Substituted 4-Pyridones and Their 4-Thio Analogues. Croatica Chemica Acta [Internet]. 1967 [pristupljeno 01.03.2021.];39(1):25-28. Dostupno na: https://hrcak.srce.hr/208104
IEEE
K. Blažević i N. Trinajstić, "A Discussion of the Absorption Spectra of Substituted 4-Pyridones and Their 4-Thio Analogues", Croatica Chemica Acta, vol.39, br. 1, str. 25-28, 1967. [Online]. Dostupno na: https://hrcak.srce.hr/208104. [Citirano: 01.03.2021.]

Sažetak
The absorption spectra of 3-hydroxy-1-aryl-4-pyridones, 2-carbethoxy-
5-hydroxy-1-aryl-4-pyridones and their 4-thio analogues are
reported . The thio compounds exhibit a red shift in the characteristic
long wavelength maximum, which can be explained with the help
of the inductive effect when oxygen is replaced by sulphur. Similarly,
with the help of the first-order inductive effect, a red shift
in the bands is discussed . This shift is produced by the substitution
of a carbethoxy group at position 2 of the pyridone ring (the charge
distributions in the ring are calculated from Hilckel molecular
orbitals). Finally, a red shift produced by substitution onto the
nitrogen in the ring is examined with the help of the mesomeric
effect.

Hrčak ID: 208104

URI
https://hrcak.srce.hr/208104

Posjeta: 96 *