DNA Binding Test, X-Ray Crystal Structure, Spectral Studies, TG-DTA, and Electrochemistry of [CoX2(dmdphphen)] (Dmdphphen Is 2,9-Dimethyl-4,7-diphenyl-1,10-phenanthroline, X = Cl, and NCS) Complexes

Author:

Al-Noaimi Mousa1,Suleiman Mohammed2,Darwish Hany W.34,Bakheit Ahmed H.3,Abdoh Muneer5,Saadeddin Iyad5,Shivalingegowda Naveen6,Lokanath Neartur Krishnappagowda7,Bsharat Odey2,Barakat Assem89,Warad Ismail2

Affiliation:

1. Department of Chemistry, Hashemite University, Zarqa 13115, Jordan

2. Department of Chemistry, Science College, An-Najah National University, P.O. Box 7, Nablus, Palestine

3. Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia

4. Department of Analytical Chemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo 11562, Egypt

5. Department of Physics, Science College, An-Najah National University, P.O. Box 7, Nablus, Palestine

6. Institution of Excellence, Vijnana Bhavan, University of Mysore, Manasagangotri, Mysore 570 006, India

7. Department of Studies in Physics, University of Mysore, Manasagangotri, Mysore 570 006, India

8. Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia

9. Department of Chemistry, Faculty of Science, Alexandria University, P.O. Box 426, Ibrahimia, Alexandria 21321, Egypt

Abstract

Two new neutral mixed-ligand cobalt(II) complexes, [CoCl2(dmdphphen)]1and [Co(NCS)2(dmdphphen)]  2, where dmdphphen is 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline, were synthesized and characterized by an elemental analysis, UV-Vis, IR, TG/DTA, cyclic voltammetry CV, and single X-ray diffraction. Complex2crystallized as monoclinic with a space group P21/c. Co(II) ions are located in a distorted tetrahedral environment. TG/DTA result shows that these complexes are very stable and decomposed through one-step reaction. The two complexes exhibit a quasireversible one-electron response at −550 and 580 mV versus Cp2Fe/Cp2Fe+, which has been assigned to Co(I)/Co(II) and Co(II)/Co(III) couples. Absorption spectral studies reveal that such complexes exhibit hypochromicity during their interaction with CT-DNA.

Funder

King Saud University

Publisher

Hindawi Limited

Subject

Inorganic Chemistry,Organic Chemistry,Biochemistry

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