Crystal structure of bis[cis-diaquabis(phenanthroline)cobalt(II)] bis(citrato)germanate(IV) dinitrate
| Autor: | Elena Martsinko, Elena Chebanenko, Olha Buchko, Viktoriya V. Dyakonenko |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
bis(citrato)germanate
crystal structure Crystallography Chemistry Hydrogen bond Phenanthroline chemistry.chemical_element General Chemistry Crystal structure Condensed Matter Physics Chemical formula cobalt Research Communications Solvent Crystal chemistry.chemical_compound 3d metal salt QD901-999 bis(citrato)germanate General Materials Science Germanate Cobalt |
| Zdroj: | Acta Crystallographica Section E: Crystallographic Communications, Vol 77, Iss 9, Pp 950-954 (2021) Acta Crystallographica Section E: Crystallographic Communications |
| ISSN: | 2056-9890 |
| Popis: | The molecular and crystal structure of the [Co(H2O)2(phen)2]2[Ge(HCit)2](NO3)2 (H4Cit is citric acid, phen is 1,10-phenanthroline) compound was studied using X-ray diffraction analysis. The asymmetric unit of the title compound, [Co(C12H8N2)2(H2O)2]2[Ge(C6H5O7)2](NO3)2, features two complex [(C12H8N2)2(H2O)2Co]2+ cations, two NO3 − anions as well as one centrosymmetric [(C6H5O7)2Ge]2− anion. Two HCit ligands (Cit = citrate, C6H4O7) each coordinate via three different oxygen atoms (hydroxylate, α-carboxylate, β-carboxylate) to the Ge atom, forming a slightly distorted octahedron. The coordination polyhedron of the Co atom is also octahedral, formed by coordination of four nitrogen atoms from two phenanthroline molecules and two water oxygen atoms. In the crystal, the cations and anions are linked by hydrogen bonds and form layers parallel to the bc plane. The structure exhibits disorder of the NO3 − anion [disorder ratio 0.688 (9) to 0.312 (9)]. There are also highly disordered solvent molecules (presumably water and/or ethanol) in the crystal structure; explicit refinement of these molecules was not possible, and the content of the voids was instead taken into account using reverse Fourier transform methods [SQUEEZE procedure in PLATON; Spek (2015 ▸). Acta Cryst. C71, 9–18]. The given chemical formula and other crystal data do not take into account the unknown solvent molecule(s). |
| Databáze: | OpenAIRE |
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