Vibrational Spectroscopic Study of 6-Aminouracil Tetracyanonickelate Complexes

Year 2012, Volume: 40 Issue: 4, 419 - 426, 01.09.2012

Celal Bayrak

Abstract

The FT-IR, FT-Raman and far-IR spectra of two dimensional coordination polymer compounds, M 6AU 2Ni CN 4 where M = Mn, Co, Ni and Cd; 6AU = 6-aminouracil = 4-amino-2,6-dihydroxypyrimidine were reported for the first time. 6-aminouracil molecules are found to involve coordination through one of the pyrimidine ring nitrogen atoms. The spectral features suggest that the compounds are similar in structure to the Hofmann type two dimensional coordination polymer compounds, formed with Ni CN 42- ions bridged by M 6AU 22+ cations. Vibrational bands originated from both 6AU and Ni CN 4 group were assigned.

Keywords

6-aminouracil, far-IR, FT-IR, FT-Raman spectra, Hofmann type complexes

6-Aminouracil Tetracyanonickelate Komplekslerinin Titreşim Spektroskopisi ile İncelenmesi

Abstract

İ ki boyutlu kordinasyon polimer kompleksleri M 6AU 2Ni CN 4 burada M = Mn, Co, Ni ve Cd; 6AU = 6-aminouracil = 4-amino-2,6-dihydroxypyrimidine ilk kez elde edilmiş ve FT-IR, FT-Raman ve far-IR ile incelenmiştir. 6-aminouracil molekülleri pirimidin halkasının azot atomlarının biri ile kordinasyon yaptığı bulunmuştur. Ni CN 2- iyonları ile M 6AU 2+ katyonlarının kordinasyonu sonucu, Hofmann tipi iki boyutlu kordinasyon polimer bileşikleri oluşturduğu spektral özellikler ile desteklenmiştir. 6AU ve Ni CN 4 grubunun her ikisinden kaynaklanan titreşim bandları tanımlanmıştır

Keywords

6-aminouracil, far-IR, FT-IR, FT-Raman spektrum, Hofmann tipi kompleksler

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