Browsing by Author "Van Almsick T."

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    Synthesis, spectral properties and crystal structure of calcium and strontium complexes of 1,10-phenanthroline
    (2006-07-19) Neykov M.; Van Almsick T.; Dimitrov G.
    Three new complexes of 1,10-Phenanthroline (phen), [Ca(phen) 2(H2O)2(NO3)](NO3) (1), [Sr(phen)2(H2O)2(NO3)](NO 3) (2) and [Ca(phen)2(H2O)2(NO 3)][BF4] (3) were synthesized and characterized by UV, FT IR, Raman, and MS spectra. Their crystal structures were also determined. In 1 and 2 only one of the (NO3)- is coordinated to the central atom. The other (NO3)- is away from the metal ion and was replaced by [BF4]- under the conditions of a competitive reaction. The two phenanthroline molecules also occupy nonequivalent positions showing typical π - π interactions in their crystal packing. © 2006 WILEY-VCH Verlag GmbH & Co. KGaA.