Determining the pKa1 and pKa2 Values of 4,4′-Trimethylenedipiperidine (TMDP), a Diprotic Organic Base with Unknown pKa Values

Zaharani, Lia and Khaligh, Nader Ghaffari (2024) Determining the pKa1 and pKa2 Values of 4,4′-Trimethylenedipiperidine (TMDP), a Diprotic Organic Base with Unknown pKa Values. Journal of Solution Chemistry, 53 (6). pp. 832-840. ISSN 0095-9782, DOI https://doi.org/10.1007/s10953-023-01348-2.

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Official URL: https://doi.org/10.1007/s10953-023-01348-2

Abstract

The negative logarithm of the acid dissociation constant values (pK(a1) and pK(a2)) of 4,4 `-trimethylenedipiperidine (TMDP) was determined by a pH metric titration at 298 K. The experimentally determined pK(a) values were compared with the predicted pK(a) values by chem-bioinformatics software like ACD/Labs and ChemAxon. This experiment gave an excellent opportunity to deepen engagement with the Henderson-Hasselbalch equation, acid/base dissociation constant (K-a/K-b), and half equivalence point.

Item Type: Article
Funders: Ministry of Education, Malaysia, Universiti Malaya
Uncontrolled Keywords: 4,4'-Trimethylenedipiperidine (TMDP); Weak diprotic organic base; Dissociation constants; Half equivalent point
Subjects: Q Science > QD Chemistry
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 12 Nov 2024 05:40
Last Modified: 12 Nov 2024 05:40
URI: http://eprints.um.edu.my/id/eprint/45811

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