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Crystal structure of bis-(propane-1,3-di-ammonium) hexa-fluorido-aluminate fluoride trihydrate.

ABSTRACT: The title compound, (C3H10N2)2[AlF6]F·3H2O, was obtained using the solvothermal method with aluminium hydroxide, HF and propane-1,3-di-amine as precursors in ethanol as solvent. The structure consists of isolated [AlF6](3-) octa-hedra, diprotonated propane-1,3-di-amine cations [(H2dap)(2+)], free fluoride ions and water mol-ecules of solvation. The Al-F bond lengths in the octa-hedral [AlF6](3-) anions range from 1.7690?(19) to 1.8130?(19)?Å, with an average value of 1.794?Å. Each [AlF6](3-) anion is surrounded by three water mol-ecules and by six diprotonated amine cations. The 'free' fluoride ion is hydrogen bonded to four H atoms belonging to four dications and has a distorted tetra-hedral geometry. The three water mol-ecules are connected by hydrogen bonds, forming trimers that connect the AlF6 octa-hedra and dications into a three-dimensional framework.

SUBMITTER: Abdi I

PROVIDER: S-EPMC4186155 | biostudies-literature | 2014 Sep

REPOSITORIES: biostudies-literature

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Crystal structure of bis-(propane-1,3-di-ammonium) hexa-fluorido-aluminate fluoride trihydrate.

Abdi I I Al-Sadhan K A KA Ben Ali A A

Acta crystallographica. Section E, Structure reports online 20140830 Pt 9

The title compound, (C3H10N2)2[AlF6]F·3H2O, was obtained using the solvothermal method with aluminium hydroxide, HF and propane-1,3-di-amine as precursors in ethanol as solvent. The structure consists of isolated [AlF6](3-) octa-hedra, diprotonated propane-1,3-di-amine cations [(H2dap)(2+)], free fluoride ions and water mol-ecules of solvation. The Al-F bond lengths in the octa-hedral [AlF6](3-) anions range from 1.7690 (19) to 1.8130 (19) Å, with an average value of 1.794 Å. Each [AlF6](3-) ani ...[more]

PMID: 25309188

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