Synthesis and characterization of two novel pyridine-containing framework gallium ethylenediphosphonates
- School of Natural Sciences (Chemistry), Bedson Building, University of Newcastle upon Tyne, Newcastle upon Tyne, NE1 7RU (United Kingdom)
- Centre for Microporous Materials, School of Chemistry, Sackville Street, University of Manchester, PO Box 88, Manchester, M60 1QD (United Kingdom)
Two novel gallium diphosphonates, (C{sub 5}H{sub 5}N)Ga{sub 3}F(O{sub 3}PC{sub 2}H{sub 4}PO{sub 3}){sub 2} (I) (triclinic, P-1, a=8.2880(12) A, b=11.7197(16) A, c=11.7601(17) A, {alpha}=71.589(3){sup o}, {beta}=70.577(3){sup o}, {gamma}=77.313(3){sup o}, V=1013.7(2) A{sup 3}, Z=2, R {sub 1}=0.0352, wR {sub 2}=0.0980) and (C{sub 5}H{sub 5}NH){sub 2}[Ga{sub 4}F{sub 2}(O{sub 3}PC{sub 2}H{sub 4}PO{sub 3}){sub 3}] (II) (triclinic, P-1, a=8.670(4) A, b=9.742(3) A, c=10.406(2) A, {alpha}=81.44(3){sup o}, {beta}=65.83(5){sup o}, {gamma}=67.16(3){sup o}, V=739.0(4) A{sup 3}, Z=2, R {sub 1}=0.0600, wR {sub 2}=0.1495) have been synthesised by solvothermal methods in the presence of pyridine and their structures determined using single-crystal X-ray diffraction data. Both compounds I and II are composed of various Ga-centered polyhedra and ethylenediphosphonate groups that link together to form framework materials with one- and two-dimensional channel systems, respectively. The two structures are formed in the presence of structure-directing pyridine molecules that are directly bound to some of the Ga atoms in I, and are protonated as pyridinium cations in II. Compounds I has a charge-neutral framework, while compound II has an anionic framework. Both materials provide rare examples of organically structure-directed framework metal diphosphonate materials. - Graphical abstract: (C{sub 5}H{sub 5}N)Ga{sub 3}F(O{sub 3}PC{sub 2}H{sub 4}PO{sub 3}){sub 2} (I) and (C{sub 5}H{sub 5}NH){sub 2}[Ga{sub 4}F{sub 2}(O{sub 3}PC{sub 2}H{sub 4}PO{sub 3}){sub 3}] (II) are novel gallium diphosphonate materials composed of Ga-centered polyhedra and ethylenediphosphonate groups that link together to form framework materials with one- and two-dimensional channel systems, respectively. The two structures are formed in the presence of structure-directing pyridine molecules or pyridinium cations and are examples of organically structure-directed framework metal diphosphonates.
- OSTI ID:
- 20905306
- Journal Information:
- Journal of Solid State Chemistry, Vol. 179, Issue 6; Other Information: DOI: 10.1016/j.jssc.2006.03.002; PII: S0022-4596(06)00149-6; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
- Country of Publication:
- United States
- Language:
- English
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