Redetermination of the crystal structure of bis(tri-2-pyridylamine)iron(II) bis(perchlorate), and a new refinement of the isotypic nickel(II) analogue: treatment of the perchlorate anion disorder
| Autor: | Zouaoui Setifi, R. El Ati, Fatima Setifi, Necmi Dege, Christopher Glidewell |
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| Přispěvatelé: | OMÜ, University of St Andrews. School of Chemistry |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
crystal structure
chemistry.chemical_element Crystal structure 010402 general chemistry 010403 inorganic & nuclear chemistry 01 natural sciences Supramolecular assembly Ion Research Communications Perchlorate chemistry.chemical_compound QD General Materials Science supramolecular assembly Crystallography Chemistry Hydrogen bond redetermination DAS Disorder model General Chemistry QD Chemistry Condensed Matter Physics hydrogen bonding 0104 chemical sciences Nickel polypyridyl complexes QD901-999 supramolecular assembly perchlorate anion disorder Amine gas treating |
| Zdroj: | Acta Crystallographica Section E: Crystallographic Communications, Vol 74, Iss 5, Pp 668-672 (2018) Acta Crystallographica Section E: Crystallographic Communications |
| ISSN: | 2056-9890 |
| Popis: | The crystal structure of bis(tri-2-pyridylamine)iron(II) bis(perchlorate) has been redetermined, and that of the isotypic bis(tri-2-pyridylamine)nickel(II) bis(perchlorate) complex has been rerefined. In each case, the perchlorate anion is disordered over four sets of atomic sites, and the ions are linked by C—H⋯O hydrogen bonds to form a supramolecular three-dimensional framework. The redetermination of the structure of the title compound, [Fe(C15H12N4)2](ClO4)2, (I), confirms the structure previously reported [Kucharski et al. (1978a ▸). Aust. J. Chem. 31, 53–56], but models the perchlorate over four sets of atomic sites, rather than using just one set of sites as in the original report. The supramolecular assembly, not reported previously, takes the form of a complex three-dimensional framework built from C—H⋯O hydrogen bonds. The isotypic nickel(II) analogue, [Ni(C15H12N4)2](ClO4)2, (III), has been refined using the original data set [Wang et al. (2011 ▸). Acta Cryst. E67, m78], again using a four-component disorder model for the anion, rather than a two-component model as in the original report, leading to more satisfactory Cl—O distances and O—Cl—O angles. |
| Databáze: | OpenAIRE |
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