Crystal structure of 9-amino-acridinium chloride N, N-di-methyl-formamide monosolvate

Igor O Fritsky; Valerii Y Sirenko; Sergiu Shova; Olesia I Kucheriv; Il'ya A Gural'skiy

doi:10.1107/S2056989021011816

Crystal structure of 9-amino-acridinium chloride N, N-di-methyl-formamide monosolvate

Acta Crystallogr E Crystallogr Commun. 2021 Nov 16;77(Pt 12):1303-1306. doi: 10.1107/S2056989021011816. eCollection 2021 Dec 1.

Authors

Igor O Fritsky¹, Valerii Y Sirenko¹, Sergiu Shova², Olesia I Kucheriv¹, Il'ya A Gural'skiy¹

Affiliations

¹ Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64, Kyiv 01601, Ukraine.
² Department of Inorganic Polymers, "Petru Poni" Institute of Macromolecular Chemistry, Romanian Academy of Science, Aleea Grigore Ghica Voda 41-A, Iasi, 700487, Romania.

Abstract

9-Amino-acridinium chloride N,N-di-methyl-formamide monosolvate, C₁₃H₁₁N₂ ⁺Cl^-·C₃H₇NO, crystallizes in the monoclinic space group P2₁/c. The salt was crystallized from N,N-di-methyl-formamide. The asymmetric unit consists of two C₁₃H₁₁N₂ ⁺Cl^- formula units. The 9-amino-acridinium (9-AA) mol-ecules are protonated with the proton on the N atom of the central ring. This N atom is connected to an N,N-di-methyl-formamide mol-ecule by a hydrogen bond. The H atoms of the amino groups create short contacts with two chloride ions. The 9-AA cations in adjacent layers are oriented in an anti-parallel manner. The mol-ecules are linked via a network of multidirectional π-π inter-actions between the 9-AA rings, and the whole lattice is additionally stabilized by electrostatic inter-actions between ions.

Keywords: 9-aminoacridinium; crystal structure; hydrogen bonds.

Grants and funding

This work was funded by Ministry of Education and Science of Ukraine grants 21BNN-06 for perspective development of a scientific direction "Mathematical sciences and natural sciences" at Taras Shevchenko National University of Kyiv and 19BF037-01M; Ministry of Research, Innovation and Digitization, CNCS/CCCDI – UEFISCDI grant PN-III-P4-ID-PCE-2020-2000, within PNCDI III.