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Croatica Chemica Acta, Vol. 87 No. 2, 2014.

Original scientific paper

https://doi.org/10.5562/cca2289

Supramolecular Interactions Involved in the Solid State Structure of N,N'-[bis(pyridin-2-yl)formylidene]ethane-1,2-diamine

Arab K. El-Qisairi orcid id orcid.org/0000-0001-9745-9253 ; Department of Chemistry, Faculty of Science, Mu’tah University, Mu’tah 61710, Jordan
Hanan A. Qaseer ; Department of Chemistry, Faculty of Science, Mu’tah University, Mu’tah 61710, Jordan
Solhe F. Alshahateet ; Department of Chemistry, Faculty of Science, Mu’tah University, Mu’tah 61710, Jordan
M. K. Hasan Qaseer ; Department of Physics, Faculty of Science, Jordan University of Science and Technology, P.O.Box 3030, Irbid, Jordan
Mukarram H. Zaghal ; Department of Chemistry, Faculty of Science, Yarmouk University, Irbid, Jordan
Wa'el Al-Btoush ; Department of Chemistry, Faculty of Science, Mu’tah University, Mu’tah 61710, Jordan
Louise N. Dawe ; Centre for Chemical Analysis, Research and Training, Memorial University of Newfoundland St. John’s, NL, A1B 3X7, Canada

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Abstract

The structure of the symmetrical Schiff base, N,N'-[bis(pyridin-2-yl)formylidene]ethane-1,2-diamine (bpfd) has been characterized by single crystal X-ray diffraction. The non-covalent supramolecular chemistry involved in the crystal structure of this ligand has been carefully investigated. The structure adopted different motifs of nitrogen-hydrogen interactions that led to the formation of centrosymmetric dimers. In addition, edge-edge and face-face nitrogen-nitrogen interactions were ob-served and reported. The Schiff base (bpfd) ligand crystallizes in a monoclinic space group C12/c1 with a = 19.128(2) Å; b = 5.8776(6) Å; c = 13.1403(15) Å; α = 90o; β = 121.970o(4); γ = 90o and z = 4. This structure is an example of compounds with many symmetry-independent molecules in the asymmetric unit cell (Z > 2).

Keywords

centrosymmetric dimer interactions; unit cell packing arrangement; spectral properties; high Z-value structure

Hrčak ID:

126965

URI

https://hrcak.srce.hr/126965

Publication date:

1.7.2014.

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