Characterisation of four new two-dimensional lithium beryllofluoro-layered compounds
Characterisation of four new two-dimensional lithium beryllofluoro-layered compounds
Four new amine-templated materials, containing two-dimensional lithium beryllofluoride sheets of the stoichiometry [LiBeF4](-), have been synthesised under hydrothermal and ambient pressure conditions. [LiBeF4][C6H4(CH3)CH2NH3] (1), [LiBeF4] [C6H4CH2NH3Cl (2), [LiBeF4](2)- [NH3CH2CH2CH2NH3] (3), and [LiBeF4][C6H5CH2CH2CH2NH3] (4) all contain well-separated anionic sheets containing two different topologies with the 'inter-layer' regions comprising of organoamine templating species. Use of the different organoamine templating agents results in compounds possessing very different relative arrangements of the lithium beryllofluoride sheets. The materials crystallise in P-centred orthorhombic and monoclinic cells; for 1 (templating agent: 3-methylbenzylamine) Pca2(1); for 2 (4-chlorobenzylamine) Pbca; for 3 (1,3-diamminopropane) Pccn, and for 4 (3-phenyl-1-propylamine) P2(1)/c. Hydrogen bonding exists between ions situated on the protonated amine groups on the templating species and electronegative fluoride ions, on MF4 tetrahedra (where M = Li and Be).
beryllium, hydrothermal synthesis, layered compounds, lithium, template
synthesis, aluminum phosphate, crystal-structure, molecular-sieves, aluminophosphate, dimensionality, solids
4936-4942
Gerrard, Lee A.
7ece498c-3d15-42f8-8c77-013242423752
Weller, Mark T.
36a60b56-049f-466c-a1d7-39d6b0d85ff4
17 October 2003
Gerrard, Lee A.
7ece498c-3d15-42f8-8c77-013242423752
Weller, Mark T.
36a60b56-049f-466c-a1d7-39d6b0d85ff4
Gerrard, Lee A. and Weller, Mark T.
(2003)
Characterisation of four new two-dimensional lithium beryllofluoro-layered compounds.
Chemistry - A European Journal, 9 (20), .
(doi:10.1002/chem.200304991).
Abstract
Four new amine-templated materials, containing two-dimensional lithium beryllofluoride sheets of the stoichiometry [LiBeF4](-), have been synthesised under hydrothermal and ambient pressure conditions. [LiBeF4][C6H4(CH3)CH2NH3] (1), [LiBeF4] [C6H4CH2NH3Cl (2), [LiBeF4](2)- [NH3CH2CH2CH2NH3] (3), and [LiBeF4][C6H5CH2CH2CH2NH3] (4) all contain well-separated anionic sheets containing two different topologies with the 'inter-layer' regions comprising of organoamine templating species. Use of the different organoamine templating agents results in compounds possessing very different relative arrangements of the lithium beryllofluoride sheets. The materials crystallise in P-centred orthorhombic and monoclinic cells; for 1 (templating agent: 3-methylbenzylamine) Pca2(1); for 2 (4-chlorobenzylamine) Pbca; for 3 (1,3-diamminopropane) Pccn, and for 4 (3-phenyl-1-propylamine) P2(1)/c. Hydrogen bonding exists between ions situated on the protonated amine groups on the templating species and electronegative fluoride ions, on MF4 tetrahedra (where M = Li and Be).
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Published date: 17 October 2003
Keywords:
beryllium, hydrothermal synthesis, layered compounds, lithium, template
synthesis, aluminum phosphate, crystal-structure, molecular-sieves, aluminophosphate, dimensionality, solids
Identifiers
Local EPrints ID: 19962
URI: http://eprints.soton.ac.uk/id/eprint/19962
ISSN: 0947-6539
PURE UUID: e98f7bfa-12a0-4ce1-8f79-1e998ffb4066
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Date deposited: 24 Feb 2006
Last modified: 15 Mar 2024 06:20
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Author:
Lee A. Gerrard
Author:
Mark T. Weller
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