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Full-Text Articles in Physical Sciences and Mathematics

Quinoxalin-2-Yl M-Tolyl Ether, Hairul Anuar Bin Tajuddin Jan 2008

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 Jan 2008

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 Jan 2008

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 Jan 2008

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.