Abstract
The title compound, C13H12N4O, crystallizes with two independent molecules in the asymmetric unit. The compound crystallizes as the ZE isomer, where Z and E refer to the configuration around the C=N and N—C bonds, respectively, with an N—H⋯Npy (py is pyridine) intramolecular hydrogen bond. The dihedral angles between the least-squares planes through the semicarbazone group and the pyridyl ring are 22.70 (9) and 27.26 (9)° for the two molecules. There are intermolecular N—H⋯O hydrogen bonds.
Highlights
The title compound, C13H12N4O, crystallizes with two independent molecules in the asymmetric unit
The compound crystallizes as the ZE isomer, where Z and E refer to the configuration around the C N and N—C bonds, respectively, with an N—H Npy intramolecular hydrogen bond
The dihedral angles between the least-squares planes through the semicarbazone group and the pyridyl ring are
Summary
Ellenaa and Heloisa Beraldob a Instituto de Fısica de São Carlos-USP, Cx Postal 369, 13560-970 São Carlos, SP, Brazil, and bDepartamento de Quımica (ICEX), Universidade Federal de Minas. R factor = 0.047; wR factor = 0.150; data-to-parameter ratio = 14.1. The title compound, C13H12N4O, crystallizes with two independent molecules in the asymmetric unit. The compound crystallizes as the ZE isomer, where Z and E refer to the configuration around the C N and N—C bonds, respectively, with an N—H Npy (py is pyridine) intramolecular hydrogen bond. The dihedral angles between the least-squares planes through the semicarbazone group and the pyridyl ring are. 22.70 (9) and 27.26 (9) for the two molecules. There are intermolecular N—H O hydrogen bonds
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