World Journal of Chemical Education
ISSN (Print): 2375-1665 ISSN (Online): 2375-1657 Website: Editor-in-chief: Prof. V. Jagannadham
Open Access
Journal Browser
World Journal of Chemical Education. 2018, 6(3), 107-112
DOI: 10.12691/wjce-6-3-1
Open AccessArticle

Lone Pair of Electrons Discriminate Hybridization with Aromaticity in the Heterocyclic Compounds - Innovative Mnemonics

Arijit Das1,

1Department of Chemistry, Ramthakur College, Agartala -799003, Tripura West, Tripura, India

Pub. Date: April 28, 2018

Cite this paper:
Arijit Das. Lone Pair of Electrons Discriminate Hybridization with Aromaticity in the Heterocyclic Compounds - Innovative Mnemonics. World Journal of Chemical Education. 2018; 6(3):107-112. doi: 10.12691/wjce-6-3-1


In this approach, formulae based mnemonics by counting lone pair of electrons (localized or delocalized) have been highlighted by innovative and time economic way to enhance interest of students’ who belong to paranoia zone of chemistry for the prediction of aromatic behavior and hybridization state of heterocyclic compounds. In order to ameliorate the field of chemical education, I have taken an enterprise to hub two economic mnemonics including two different formulae. This article encourages students to solve multiple choice type questions (MCQs) at different competitive examinations for a time being in an economic ground for the prediction of aromaticity and hybridization state of heterocyclic compounds containing two or more hetero-atoms. Educators can use these mnemonics in their teaching style in the classroom lectures after discussing conventional methods to make chemistry intriguing because the use of mnemonics in classroom lectures is an essential tool to become a distinguished educator.

high school under graduate student graduate student post graduate student chemical education research heterocyclic compound DLP LLP aromaticity and hybridization

Creative CommonsThis work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit


[1]  L. Pauling, The Nature Chemical Bond. Application of Results Obtained from the Quantum Mechanics and from a Theory of Paramagnetic Susceptibility to the Structure of Molecules, J.Am.Chem.Soc., 53(4), 1931, pp. 1367-1400,
[2]  Erich Hückel , Quantentheoretische Beiträge zum Benzolproblem I. Die Elektronenkonfiguration des Benzols und verwandter Verbindungen. Z.Phys. 70 (3-4), 1931, 204-86;
[3]  I.L. Finar, Organic Chemistry, Vol-2, 5th ed., Pearson, 2002, pp. 619-620.
[4]  R.T. Morrison and R.N. Boyd, 6th ed., Organic Chemistry, 6th ed., 1992, pp. 1059-1061.
[5]  T.W.Graham Solomons and C.B. Fryhle, Organic Chemistry, 9th ed., Wiley: India, 2012, pp. 655-658.
[6]  J.G. Smith, Organic Chemistry, 2nd ed., 2008, pp. 616-619.
[7]  Jerry March, Advanced Organic Chemistry: Reaction, Mechanisms and Structure, 4th ed. A Willy-Interscience Publication, JOHN WILEY & SONS, New York, 2005, p. 45, ISBN: 0-471-85472-7.
[8]  A.Bahl & B.S.Bahl, A Text Book of Organic Chemistry, 22nd ed., S.Chand & Company Pvt.Ltd., New Delhi, India, 2016, pp. 900-920.