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Distorted tetrahedral geometry.

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(2,9-Dimethyl-1,10-Phenanthroline-π 2N,N')Diiodidocadmium

Wed, 2013-03-13 16:42 — Ismail Warad
Journal Title, Volume, Page: 
Acta Cryst. (2011), Volume 67,Part 12, Page m1650 [doi:10.1107/S1600536811044667]
Year of Publication: 
2011
Link: 
http://journals.iucr.org/e/issues/2011/12/00/pk2353/index.html
Authors: 
Ismail Warad
Department of Chemistry, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
Current Affiliation: 
Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine
[email protected]
Ahmed Boshaala
Department of Chemistry, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
Saud I. Al-Resayes
Department of Chemistry, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
Salem S. Al-Deyab
Petrochemical Research Chair, College of Science, King Saud, University, Riyadh, Saudi Arabia
Mohamed Rzaiguic
Laboratoire de Chimie des Matériaux, Faculté des Sciences de Bizerte, 7021 Zarzouna Bizerte, Tunisia
[email protected]
Preferred Abstract (Original): 
In the title compound, [CdI2(C14H12N2)], the molecule sits on a crystallographic twofold axis. The coordination sphere of the CdII atom is built of two symmetry-equivalent N atoms of one 2,9-dimethyl-1,10-phenanthroline (dmphen) ligand and two symmetry-equivalent I atoms, thus forming a distorted tetrahedral geometry. Inversion-related molecules interact along the c-axis direction by π -π stacking interactions between the phenanthroline ring systems, with centroid-centroid distances of 3.707 (9) and 3.597 (10) Å.
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Dichlorido(2,9-Dimethyl-1,10-Phenanthroline- 2N,N')Mercury(II)

Wed, 2013-03-13 16:24 — Ismail Warad
Journal Title, Volume, Page: 
Acta Crystallographica Section E, Volume 69, Part 2, Page m109, February 2013
Year of Publication: 
2013
Link: 
http://journals.iucr.org/e/issues/2013/02/00/br2220/index.html
Authors: 
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
[email protected]
Mousa Al-Noaimi
Department of Chemistry, Hashemite University, Zarqa 13115, Jordan
Salim F. Haddad
Department of Chemistry, The University of Jordan, Amman
Rema Othmand
Language Centre, Hashemite University, Zarqa 13115, Jordan
[email protected]
Preferred Abstract (Original): 
The title compound, [HgCl2(C14H12N2)], consists of one 2,9-dimethyl-1,10-phenanthroline (dmphen) ligand chelating the HgII ion and two chloride ligands coordinating to the HgII ion, forming a distorted tetrahedral environment. The dmphen ligand is nearly planar (r.m.s. deviation = 0.0225 Å). The dihedral angle between the normal to the plane defined by the HgII atom and the two Cl atoms and the normal to the plane of the dmphen ring is 81.8 (1)°.
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