Work

Crystal structure of 1-phenyl-1 H -pyrazolo[3,4- d ]pyrimidin-4(5 H )-one

Year: 2025

Type: article

Abstract: Heating of 5-amino-1-phenyl-1 H -pyrazole-4-carbonitrile in the presence of formic acid yielded the title compound, C 11 H 8 N 4 O. The pyrazolo[3,4- d ]pyrimidine ring system forms a dihedral angle of 34.72 (6)° with the phenyl ring. In the crystal, classical N—H...O and non-classical C—H...O and C—H...N intermolecular interactions result in the formation of supramolecular bands extending parallel to the a axis. Additional π...π interactions between pyrimidine and pyrazole rings, and C—H...π interactions between neighboring phenyl rings consolidate the packing.

Source: Acta Crystallographica Section E Crystallographic Communications

DOI: 10.1107/s205698902500934x

Authors: Nilufar Akhmedova, Ilkhom Ortikov, Nilufar Khasanova, Kosim Zokhidov, Kambarali Turgunov, Burkhon Elmuradov

Institutions: Yunusov Institute of the Chemistry of Plant Substances, Alfraganus University, Samarkand State University named after Sharof Rashidov, Turin Polytechnic University

Language: English

Topic: Crystal structures of chemical compounds

Subfield: Inorganic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $500

Funder: Academy of Sciences Republic of Uzbekistan