The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Effect of isotopic composition on electrical resistance of lithium》. Authors are Leffler, R. G.; Montgomery, D. J..The article about the compound:1,3,5,7-Tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantanecas:97739-46-3,SMILESS:CC1(C2)OC(C3)(C)OC2(C)OC3(C)P1C4=CC=CC=C4).SDS of cas: 97739-46-3. Through the article, more information about this compound (cas:97739-46-3) is conveyed.
The elec. resistance of solid metallic Li containing varying proportions of Li6 and Li7 was measured at 4.2-295°K. For the isotopically pure substances, the main features of the behavior agree with the predictions of the Bloch-Grueneisen law, the characteristic temperature is inversely proportional to the square root of the mass. For the isotopically impure substances, the behavior of the resistance as a function of temperature can be described just as that of an isotopically pure substance with a mass dependent on the isotopic composition In fact, the temperature dependence of resistance for all compositions, including the pure isotopes, can be represented as a universal curve by use of appropriate scaling factors depending on average isotopic mass. From the present data the arithmetic mean cannot be preferred over the harmonic mean isotopic mass, and hence one cannot decide between certain theoretical proposals concerned with the effect of isotopic impurities on lattice vibration spectra. No need exists to invoke a scattering mechanism that looks upon isotopes as introducing imperfections in the lattice; rather, their presence merely modifies the lattice vibration spectrum. The effect of the martensitic transition at low temperatures is barely, if at all, discernible.
In some applications, this compound(97739-46-3)SDS of cas: 97739-46-3 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.
Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics