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Ni II tetrahedral complexes Characterization antimicrobial properties theoretical studies and a new family of charge transfer transitions     
Yazarlar
Nurşen Sarı
Gazi Üniversitesi, Türkiye
Songül Çiğdem Şahin
 Hatice ÖĞÜTCÜ Hatice ÖĞÜTCÜ
Ahi Evran Üniversitesi, Türkiye
Yavuz Dede
Gazi Üniversitesi, Türkiye
Yalçın Soydan
Aliye Altundaş
Gazi Üniversitesi, Türkiye
Kadir Doğanay
Özet
A new amine containing selenium and their five imine, (SeSchX)(X: -H, F, Cl, Br, CH3), and Ni (II) complexes, [Ni(SeSchnH(2)O)(2)]Cl/[Ni(SeSchCl)(H2O)Cl], were synthesized. The compounds were characterized by means of elemental analyses, C-13 and H-1 NMR (for imine), FT-IR, UV-Visible spectroscopy, TGA/DTA and elemental analyses. [Ni(SeSchCl)(H2O)Cl] complex from Ni(II) complexes changes color from yellow to orange in the range pH 5-7. [Ni(SeSchCl)(H2O)Cl] complex has ligand-to-metal charge-transfer (LMCT) transitions in the basic medium. Excitation characteristics and energetic of [Ni(SeSchCl)(H2O)Cl] complex, examined via TD-DFT calculations, reveals transitions of LMCT and pi -> pi* character that matches the experimental values. [Ni(SeSchCl)(H2O)Cl] complex showed the highest antibacterial activity when compared to other complexes reported in this work. (C) 2013 Elsevier B.V. All rights reserved.
Anahtar Kelimeler
Charge-transfer transitions | Cyclic seven-membered ring | DFT | Amine containing selenium | Antimicrobial properties
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
Dergi ISSN 1386-1425
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 04-2013
Cilt No 106
Sayfalar 60 / 67
Doi Numarası 10.1016/j.saa.2012.12.078
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S1386142512013133