Synthesis, thermal stability, and structure of bis(citrato)germanates: [Co(Phen) 3 ][Ge(HCit) 2 ] · 2H 2 O, [Fe(Phen) 3 ][Ge(HCit) 2 ] · 4H 2 O (H 4 Cit = citric acid, Phen = 1,10-phenanthroline)

I. I. Seifullina; E. E. Martsinko; E. A. Chebanenko; O. V. Pirozhok; V. V. Dyakonenko; S. V. Shihkina

doi:10.1134/S1070328417080061

Synthesis, thermal stability, and structure of bis(citrato)germanates: [Co(Phen)₃][Ge(HCit)₂] · 2H₂O, [Fe(Phen)₃][Ge(HCit)₂] · 4H₂O (H₄Cit = citric acid, Phen = 1,10-phenanthroline)

Authors: Seifullina I.I.¹, Martsinko E.E.¹, Chebanenko E.A.¹, Pirozhok O.V.¹, Dyakonenko V.V.², Shihkina S.V.²^,3
Affiliations:
1. Mechnikov Odessa National University
2. State Scientific Institution “Institute for Single Crystals”
3. Karazin Kharkiv National University
Issue: Vol 43, No 8 (2017)
Pages: 505-511
Section: Article
URL: https://journals.rcsi.science/1070-3284/article/view/214008
DOI: https://doi.org/10.1134/S1070328417080061
ID: 214008

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Abstract

Synthetic procedures were developed and the complexes [Fe(Phen)₃][Ge(HCit)₂] · 4H₂O (I) and [Co(Phen)₃][Ge(HCit)₂] · 2H₂O (II) (Phen is 1,10-phenanthroline, H₄Cit is citric acid) were obtained. The identity, composition, and thermal stability of the complexes were established by elemental analysis, thermogravimetry, and IR spectroscopy. According to X-ray diffraction data (CIF files CCDC nos. 1515837 (I) and 1515838 (II)), complexes I and II are different-metal cation–anion complexes with the same bis(citrato)germanate anion Ge(HCit)₂]^2–. The charge of the complex anions is counterbalanced by the octahedral complex cations, [Fe(Phen)₃]²⁺ (I) or [Co(Phen)₃]²⁺ (II).

Keywords

germanium dioxide, citric acid, 1,10-phenanthroline, iron(II), cobalt(II), coordination compounds, molecular structure, X-ray diffraction

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Synthesis, thermal stability, and structure of bis(citrato)germanates: [Co(Phen)3][Ge(HCit)2] · 2H2O, [Fe(Phen)3][Ge(HCit)2] · 4H2O (H4Cit = citric acid, Phen = 1,10-phenanthroline)

Full Text

Abstract

Keywords

About the authors

I. I. Seifullina

E. E. Martsinko

E. A. Chebanenko

O. V. Pirozhok

V. V. Dyakonenko

S. V. Shihkina

Supplementary files

Synthesis, thermal stability, and structure of bis(citrato)germanates: [Co(Phen)₃][Ge(HCit)₂] · 2H₂O, [Fe(Phen)₃][Ge(HCit)₂] · 4H₂O (H₄Cit = citric acid, Phen = 1,10-phenanthroline)