U fiirso qoraalka hoose ka dibna ka jawaab su'aasha kadib isla luqadda qoraalka:  Marinka: Muuqaalka nuugista indhaha ee pyridine ee hexane wuxuu ka kooban yahay saddex qaybood oo dhererka hirarka ah 195 nm (π → π * kala-guurka, nuugista molar ε = 7500 L·mol−1·cm−1), 251 nm (π → π * kala-guurka, ε = 2000 L·mol−1·cm−1) iyo 270 nm (n → π * kala-guurka, ε = 450 L·mol−1·cm−1). 1H magnetic resonance (NMR) ee pyridine wuxuu ka kooban yahay saddex calaamadood oo leh saamiga xoogga dhamaystiran ee 2: 1: 2 oo u dhiganta saddexda proton ee kiimikada kala duwan ee molecule. Calaamadahaasi waxay ka yimaadaan α-protons (booska 2 iyo 6, isbeddelka kiimikada 8.5 ppm), γ-proton (booska 4, 7.5 ppm) iyo β-protons (booska 3 iyo 5, 7.1 ppm). Kaarboonka ka soo baxa pyridine, benzene, wuxuu leeyahay hal proton signal oo ah 7.27 ppm. Isbeddellada kiimikada ee waaweyn ee α- iyo γ-protons marka la barbar dhigo benzene waxay ka dhalataa cufnaanta elektaroonigga ee hooseysa ee α- iyo γ-booska, taas oo laga soo saari karo dhismayaasha resonance. Xaaladdu waa mid la mid ah 13C NMR spectra ee pyridine iyo benzene: pyridine waxay muujineysaa saddex-geesoodka at δ(α-C) = 150 ppm, δ(β-C) = 124 ppm iyo δ(γ-C) = 136 ppm, halka benzene uu leeyahay hal xariiq at 129 ppm. Dhammaan shaqooyinka waxaa lagu sheegay walxaha aan lahayn dareeraha. Pyridine waxaa sida caadiga ah lagu ogaadaa gaaska chromatography iyo qaababka spectrometry mass.  Su'aal: imisa xariiq ayaa kujira habka loo yaqaano pyridine spectrum gudaha hexane?
saddex