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oai:munzur-rdlopen.rawdatalibrary.net:munzur/38932026-10-28T15:47:40Zopenairecom_munzur_1col_munzur_2com_munzur_8col_munzur_154com_munzur_11col_munzur_162

The examination of a variety of different ions added to the crown ether derivatives with high field NMR spectrometerAşkin, MuzafferZengin, BilginKorunur, SibelKor, HarunKöylü, M. Zaferbinding constantschemical shiftscrown ethersNMRT₁ relaxation timeThe current study involves the measurements of T1 relaxation time of complexes three different crown ethers (4-aminobenzo-15-Crown-5, 1-Aza-18-Crown-6, 1-Aza-15-Crown-5) and two different ions sodium perchlorate (NaClO4), lithium perchlorate (LiClO4) by a 400 MHz NMR spectrometer. The association constants (Ka) of the complexes were determined on the basis of the evaluation of these measurements using the Benesi-Hildebrand method that we have modified. These association constants were consistent with those obtained from 1H NMR titration technique. As a result, it can be speculated that binding constants could be measured using T1 relaxation time when chemical shifts are very small or cannot be observed.Maik Nauka Publishing / Springer SBM2017Articlehttps://rdlopen.rawdatalibrary.net/r/munzur/3893https://doi.org/10.1134/s19907931170301621990-7931enRussian Journal of Physical Chemistry Binfo:eu-repo/semantics/closedAccessinfo:eu-repo/semantics/articlehttps://munzur-rdlopen.rawdatalibrary.net/tr/items/munzur/3893