Proton spin-lattice relaxation on acetic acid was written by Hrynkiewicz, A. Z.;Krynicki, K.;Waluga, I.. And the article was included in Archives des Sciences in 1961.Recommanded Product: 3-Methoxypyridazine This article mentions the following:
By measuring the nuclear resonance absorption at a resonance frequency of 28 Mc., a non-exponential increase of magnetization of protons in liquid AcOH is observed with time of storage at temperatures of 20, 30, 50, and 80°. An explanation for these results is possible on the assumption of different spin-lattice relaxation times for the protons in the CH3 and in the COOH groups. In the experiment, the researchers used many compounds, for example, 3-Methoxypyridazine (cas: 19064-65-4Recommanded Product: 3-Methoxypyridazine).
3-Methoxypyridazine (cas: 19064-65-4) belongs to pyridazine derivatives. Pyridazines are rare in nature, possibly reflecting the scarcity of naturally occurring hydrazines, common building blocks for the synthesis of these heterocycles. The unsubstituted pyridazines are more resistant to eletrophilic substitution due to the nature of withdrawal of electron density from the ring by two heteroatoms, while the related electron deficiency of the ring makes pyridazine more easily attacked by nucleophiles.Recommanded Product: 3-Methoxypyridazine
Referemce:
Pyridazine – Wikipedia,
Pyridazine | C4H4N2 – PubChem