Synthesis, Crystal Structure, Hirshfeld Surface Analysis, and Computational Study of a Novel Organic Salt Obtained from Benzylamine and an Acidic Component

Muhammad Ashfaq; Khurram Shahzad Munawar; Muhammad Nawaz Tahir; Necmi Dege; Mavise Yaman; Shabbir Muhammad; Saleh S Alarfaji; Hadi Kargar; Muhammad Umar Arshad

doi:10.1021/acsomega.1c03078

Synthesis, Crystal Structure, Hirshfeld Surface Analysis, and Computational Study of a Novel Organic Salt Obtained from Benzylamine and an Acidic Component

ACS Omega. 2021 Aug 18;6(34):22357-22366. doi: 10.1021/acsomega.1c03078. eCollection 2021 Aug 31.

Authors

Affiliations

¹ Department of Physics, University of Sargodha, Sargodha 40100, Pakistan.
² Department of Physics, University of Mianwali, Mianwali 42200, Pakistan.
³ Department of Chemistry, University of Sargodha, Sargodha 40100, Pakistan.
⁴ Department of Chemistry, University of Mianwali, Mianwali 42200, Pakistan.
⁵ Department of Physics, Faculty of Arts and Sciences, Ondokuz Mayis University, Kurupelit, Samsun 55139, Turkey.
⁶ Department of Physics, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia.
⁷ Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia.
⁸ Department of Chemical Engineering, Faculty of Engineering, Ardakan University, Ardakan 184, Iran.

Abstract

A novel Schiff base compound named as phenylmethanaminium (E)-4-((benzylimino)methyl)benzoate C₇H₁₀N⁺. C₁₅H₁₂NO₂ ^- (A) is synthesized by the chemical reaction of benzylamine and 4-carboxybenzaldehyde in ethanol, and the structure of the titled compound is verified using the single-crystal X-ray diffraction technique. Structural investigation inferred that the crystal packing is mainly stabilized by N-H···O and comparatively weak C-H···O bonding between the cation and anion and further stabilized by weak C-H···π and C-O···π interactions. Hirshfeld surface analysis is employed to explore the noncovalent interactions that are responsible for crystal packing quantitatively. Furthermore, we have used state-of-the-art quantum chemical calculations to get comprehensive insights into the structure-optoelectronic property relationship for the entitled compound. The molecular geometry of compound A is optimized at the M06/6-311G* level of theory. The linear polarizability, third-order nonlinear optical (NLO) polarizability, total and partial density of states, and UV-visible spectrum are calculated through quantum chemical calculations. We believe that compound A is not only a new addition to crystallographic data but also possesses good optical and NLO properties for its potential use in lasers and frequency-converting applications.