dihedral angle

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2-Phenoxyethyl Benzoate

Journal Title, Volume, Page: 
Acta Crystallographica Section E, Volume 69, Part 5, Page o789, May 2013
Year of Publication: 
2013
Authors: 
Mousa Al-Noaimi
Department of Chemistry, Hashemite University, Zarqa 13115, Jordan
Ismail Warad
Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine
Current Affiliation: 
Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine
Salim F. Haddad
Department of Chemistry, The University of Jordan, Amman 11942, Jordan
Ahmad Husein
Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine
Rami Shareiah
Department of Basic Science, Allied Medical Science College, Applied Science Private University, PO Box 166, Amman 11931, Jordan
Preferred Abstract (Original): 
In the title compound, C15H14O3, the dihedral angle between the benzene rings is 75.85 (7)°. In the crystal, centrosymmetrically related molecules are weakly associated through pairs of interactions between a benzene ring and an O atom of the ester group [ring centroid O = 3.952 (7) Å], and through pairs of interactions between the other benzene ring and an O atom of the phenoxy group [ring centroid O = 3.912 (7) Å], giving chains extending along [110].
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5,5-Dimethyl-2,2-Bis(Pyridin-2-Yl)-1,3-Diazinane

Journal Title, Volume, Page: 
Acta Crystallographica Section E, Volume 68, Part 6, Page o1786, June 2012
Year of Publication: 
2012
Authors: 
Ismail Warad
Department of Chemistry, College of Science, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
Current Affiliation: 
Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine
Afaf Alruwaili
Department of Chemistry, College of Science, University of Hail, PO Box 2440, Hail, Saudi Arabia
Saud I. Al-Resayes
Department of Chemistry, College of Science, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
M. Iqbal Choudhary
H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
Sammer Yousuf
H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
Preferred Abstract (Original): 
In the molecule of the title compound, C16H20N4, the 1,3-diazinane ring adopts a chair conformation and the dihedral angle formed by the pyridine rings is 78.64 (8)°. The molecular conformation is stabilized by an intramolecular C-H N hydrogen bond, forming an S(6) ring motif. In the crystal, centrosymmetrically related molecules are linked into dimers by pairs of N-H N hydrogen bonds, generating rings of R22(10) graph-set motif.
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