STRUCTURE OF bis(CITRATO)GERMANATES WITH DIFFERENT TYPES OF CATIONS: (Hphen)2[Ge(HCit)2x3H2O], [CuCl(phen)2]2[Ge(HCit)2x6H2O], WHERE H4Cit IS CITRIC ACID, PHEN IS 1,10-PHENANTHROLINE
I. I. Seifullina1, E. E. Martsinko1, E. A. Chebanenko1, O. V. Pirozhok1, V. V. Dyakonenko2, S. V. Shishkina2,3
1Mechnikov Odessa National University, Odessa, Ukraine
2Scientific and Technological Complex "Institute for Single Crystals", National Academy of Sciences, Kharkov, Ukraine
3Karazin Kharkov National University, Kharkov, Ukraine
Keywords: диоксид германия, лимонная кислота, 1,10-фенантролин, хлорид меди(II), координационные соединения, молекулярная структура, рентгеноструктурный анализ, germanium dioxide, citric acid, 1,10-phenanthroline, copper(II) chloride, coordination compounds, molecular structure, single crystal X-ray diffraction analysis
Abstract
The procedures are developed and the complexation products are preparatively isolated from GeO2-H4Cit-phen-CH3CN-H2O (I) and GeO2-H4Cit-CuCl2-phen-C2H5OH-H2O (II) systems (phen is 1,10-phenanthroline, H4Cit is citric acid). The (Hphen)2[Ge(HCit)2]x3H2O (I) and [Cu(phen)2Cl]2[Ge(HCit)2]x6H2O (II) complexes are characterized by elemental analysis, IR spectroscopy, and single crystal X-ray diffraction. The compounds are formed from centrosymmetric octahedral [Ge(HCit)2]2- anions, Hphen+ (I) and [Cu(phen)2Cl]+ (II) cations, and crystallization water molecules. The structural units in the crystals are linked via a system of hydrogen bonds.
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