Spectroscopic investigation of a new hybrid glass formed by the interaction between croconate ion and calcium polyphosphate.

作者: Carlos Ivan R. de Oliveira , Luiz Fernando C. de Oliveira , Francisco A. Dias Filho , Younes Messaddeq , Sidney J.L. Ribeiro

DOI: 10.1016/J.SAA.2004.01.036

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摘要: Abstract In this work, a new organic–inorganic hybrid material has been synthesized by the incorporation of croconate ion into calcium polyphosphate coacervate. The so obtained was characterized means electronic and vibrational spectroscopies. is homogeneous mixture described structural model, which includes helical chains ions, where occupies internal vacancies structure. appears to be occupying regions outside polymeric structure, surrounded several water molecules. spectrum incorporated shows broad band peaking at same wavelength region (363 nm) observed for aqueous solution ion, manifesting Jahn-Teller effect as evidenced doublet structure band. infrared widely dominated absorption bands appearance carbonyl stretching ca. 1550 cm −1 indicates presence in Raman related oxocarbon moiety; most them are shifted comparison with free ion. These shifts can understood terms strong hydrogen bonding interactions between molecules moiety. low temperature methodology proposed here well used preparation phosphate glasses containing organic moieties opening route an entirely class glasses.

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