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Experimental And Theoretical Vibrational Spectroscopic Investigation Of Zn(II) Halide Complexes Of 3-Aminopyridine And 3-Chloropyridine

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Author
Akalın, Elif
Akyüz, Sevim
Type
Article
Date
2011-05-03
Language
en_US
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Abstract
The aim of this study is to analyse the influence of the formation of metal-ligand bond through the ring nitrogen on the vibrational wavenumbers of pyridine derivatives, depending on the electron releasing (NH2) or electron withdrawing (CI) substituent, in the same position. As pyridine derivatives, 3-aminopyridine (3apy) and 3-chloropyridine (3Clpy) were used. Moreover, determination of the wavenumbers of metal-ligand bond vibrations has a separate interest. In order to investigate the influence of the counter ligand, halide, on pyridine derivative vibrations, calculations were carried out on both Zn(L)(2)Cl(2)and Zn(L)(2)Br-2 (where L = 3-aminopyridine or 3-chloropyridine) compounds. Full assignment of the spectra is proposed and the analysis of the experimental data are supported by DFT calculations performed with B3LYP functional and the 6-311++G(d,p) basis set. The FT-IR (400-4000 cm(-1)) and Raman (100-3200 cm(-1)) spectra of compounds are recorded and are compared with that of the calculated spectra. Anharmonic corrections to the harmonic wavenumbers are done with the same method and level of theory. The coordination effects on vibrational wavenumbers of 3apy and 3Clpy were discussed by comparing the spectra of free and coordinated molecules. (C) 2011 Elsevier B.V. All rights reserved.
Subject
3-aminopyridine
3-chloropyridine
density functional theory
infrared spectrum
Raman spectrum
Zn halide complexes
crystal-structure
spectra
yoğunluk fonksiyonu teorisi
kızıl ötesi spektrum
Raman tayfı
Zn-halojenür-kompleksleri
kristal yapı
spektrumlar
URI
http://hdl.handle.net/11413/1413
Collections
  • Makaleler / Articles [293]
  • Scopus Publications [724]
  • WoS Publications [1016]

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Hakkında |Politika | Kütüphane | İletişim | Send Feedback | Admin

Istanbul Kültür University, Ataköy Campus E5 Karayolu Üzeri Bakırköy 34158, İstanbul / TURKEY
Copyright © İstanbul Kültür University

Creative Commons Lisansı
IKU Institutional Repository, Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.

Designed by  UNIREPOS