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Full-Text Articles in Physical Sciences and Mathematics
2-(3-Nitrophenoxy)Quinoxaline, Hairul Anuar Bin Tajuddin
2-(3-Nitrophenoxy)Quinoxaline, Hairul Anuar Bin Tajuddin
Hairul Anuar Bin Tajuddin
In the title molecule, C(14)H(9)N(3)O(3), the dihedral angle between the quinoxaline and benzene rings is 77.13 (9)degrees. The molecule is twisted about the ether-benzene O-C bond, with a C-O-C-C torsion angle of -102.8 (2)degrees. In the crystal, molecules are linked by C-H center dot center dot center dot O hydrogen bonds, forming layers in the ab plane, with one nitro O atom accepting two such interactions. The layers stack along the c-axis direction via weak C-H center dot center dot center dot pi interactions.
Quinoxalin-2-Yl M-Tolyl Ether, Hairul Anuar Bin Tajuddin
Quinoxalin-2-Yl M-Tolyl Ether, Hairul Anuar Bin Tajuddin
Hairul Anuar Bin Tajuddin
The dihedral angle between the two aromatic ring systems in the title compound, C(15)H(12)N(2)O, is 79.4 (1)degrees. The angle at the O atom is widened to 116.93 (9)degrees.
2,2 '- Nonane-1,9-Diylbis(Nitrilomethylidyne) Diphenol, Hairul Anuar Bin Tajuddin
2,2 '- Nonane-1,9-Diylbis(Nitrilomethylidyne) Diphenol, Hairul Anuar Bin Tajuddin
Hairul Anuar Bin Tajuddin
In the title Schiff base compound, C(23)H(30)N(2)O(2), the complete molecule is generated by crystallographic twofold symmetry, with one C atom lying on the rotation axis. The nonane chain adopts a linear conformation and the hydroxy group forms an intramolecular O-H center dot center dot center dot N hydrogen bond to the imine group.
Quinoxalin-2-Yl O-Tolyl Ether, Hairul Anuar Bin Tajuddin
Quinoxalin-2-Yl O-Tolyl Ether, Hairul Anuar Bin Tajuddin
Hairul Anuar Bin Tajuddin
The dihedral angle between the two aromatic ring systems in the title compound, C(15)H(12)N(2)O, is 85.9 (1)degrees; The angle at the O atom is widened to 118.2 (2)degrees. The quinoxalinyloxy part of the molecule lies on a mirror plane and the tolyl group is disordered over two positions about the mirror plane.
Quinoxalin-2-Yl P-Tolyl Ether, Hairul Anuar Bin Tajuddin
Quinoxalin-2-Yl P-Tolyl Ether, Hairul Anuar Bin Tajuddin
Hairul Anuar Bin Tajuddin
The dihedral angle between the two aromatic ring systems in the title compound, C(15)H(12)N(2)O, is 42.6 (1)degrees. The angle at the O atom is widened to 117.7 (1)degrees.