2-Amino-4-(4-meth-oxy-phen-yl)-5-oxo-4 H,5 H-pyrano[3,2- c]chromene-3-carbo-nitrile acetic acid monosolvate

Bimal Bhushan Chakraborty; Saurav Paul; Siddique Anwar; Sudip Choudhury

doi:10.1107/S2414314623005588

2-Amino-4-(4-meth-oxy-phen-yl)-5-oxo-4 H,5 H-pyrano[3,2- c]chromene-3-carbo-nitrile acetic acid monosolvate

IUCrdata. 2023 Jun 30;8(Pt 6):x230558. doi: 10.1107/S2414314623005588. eCollection 2023 Jun.

Authors

Bimal Bhushan Chakraborty¹, Saurav Paul¹, Siddique Anwar¹, Sudip Choudhury²

Affiliations

¹ Department of Chemistry, Assam University, Silchar 788011, India.
² Centre for Soft Matter, Department of Chemistry, Assam University, Silchar 788011, India.

Abstract

In the title co-crystal, C₂₀H₁₄N₂O₄·C₂H₄O₂, the expected proton transfer from acetic acid to amine has not occurred. In the crystal, the chromene mol-ecules are linked by N-H⋯O and N-H⋯N hydrogen bonds to generate [100] columns. The acetic acid mol-ecules form inversion dimers linked by pairwise O-H⋯O hydrogen bonds and occupy voids between the columns.

Keywords: acetic acid dimer; carbonitrile; chromene; co-crystal; crystal structure.

Grants and funding

Funding for this research was provided by: Department of Science and Technology, Ministry of Science and Technology, India (scholarship No. INSPIRE to Saurav Paul); University Grants Commission (scholarship to Bimal Bhushan Chakraborty); Department of Science and Technology, Ministry of Science and Technology, India, Science and Engineering Research Board (grant to Sudip Choudhury).