Synthesis and characterization of two novel pyridine-containing framework gallium ethylenediphosphonates

Yuan, Zhanhui; Clegg, William; Attfield, Martin P.

doi:10.1016/j.jssc.2006.03.002

Cited by 11 publications

(3 citation statements)

References 30 publications

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“…The sixth coordination site of the GaO 5 N octahedron, the nitrogen atom, is donated by a neutral pyridine molecule which was introduced into the synthetic system as a co-solvent. Similar coordination of pyridine to Ga 3+ cations has been observed in other gallium diphosphonate materials . The GaO 5 N octahedra are arranged within a Ga−P−O layer so that all the pyridine molecules protrude in one direction only, and within the structure the Ga−P−O layers are stacked so that the pyridine molecules of alternate layers are directed in opposite directions, as seen in Figure b.…”

Section: Resultssupporting

confidence: 63%

Structural Variety within Gallium Diphosphonates Affected by the Organic Linker Length

Attfield¹,

Yuan

Harvey

et al. 2010

Inorg. Chem.

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Three new gallium diphosphonates: Ga(3)(OH)(O(3)PC(3)H(6)PO(3))(2) (1), Ga(4)(O(3)PC(5)H(10)PO(3))(3)(C(5)H(5)N)(2) (2), and Ga(HO(3)PC(10)H(20)PO(3)) (3), in which the diphosphonate bridging ligands have 3, 5, and 10 methylene units, respectively, have been synthesized using solvothermal methods and their structures determined using single-crystal laboratory and synchrotron X-ray diffraction data. All three materials contain Ga-centered tetrahedra and octahedra linked together through the -PO(3) groups of the diphosphonate ligands to form two-dimensional pillared slab (1) and three-dimensional pillared (2 and 3) materials. Compound 1 contains bridging hydroxide anions that connect Ga-centered octahedra and tetrahedra, and contains pillared slabs in which one side of the Ga-P-O/OH/CH hybrid layers are connected by the propylenediphosphonate groups only. This slab also contains propylenediphosphonate groups arranged orthogonally to the pillaring direction in the outermost layer of the Ga-P-O/OH/CH hybrid layers. Compound 2 is a framework structure that contains framework pyridine molecules between alternate layers of diphosphonate-pillared Ga-P-O layers and is structurally stable to loss of 1 equiv of pyridine molecules from the structure. Compound 3 is a partially condensed pillared framework structure with one P-O-H bond per diphosphonate group remaining in the resulting material. The structural changes observed as the alkylene chain in the diphosphonate ligand is increased in these compounds is compared to other members of the gallium diphosphonate family synthesized in a similar manner, and other metal diphosphonate series, to gain some general oversight of the structural trends observed in series of metal diphosphonate materials in which the alkylene chain length is varied systematically.

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Section: Resultssupporting

confidence: 63%

Structural Variety within Gallium Diphosphonates Affected by the Organic Linker Length

Attfield¹,

Yuan

Harvey

et al. 2010

Inorg. Chem.

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“…Hybrid compounds are widely investigated due to their special relevance in fundamental sciences and in several applied fields such as biomolecular sciences, catalysis and nonlinear optics (Xiao et al, 2005, Yuan et al, 2006. These materials are generally rich in hydrogen bonds which are considered as the most effective tool for constructing sophisticated assemblies from discrete ionic or molecular building blocks due to its strength and directionality (Wang & Zhang, 2006).…”

Section: S1 Commentmentioning

confidence: 99%

2,6-Xylidinium nitrate

Abid¹,

Hemissi²,

Rzaigui³

2007

Acta Cryst E

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Key indicators: single-crystal X-ray study; T = 293 K; mean (C-C) = 0.003 Å; R factor = 0.037; wR factor = 0.112; data-to-parameter ratio = 12.9.The structure of the title organic-inorganic hybrid material, C 8 H 12 N + ÁNO 3 À , results mainly from electrostatic interactions and bifurcated N-HÁ Á ÁO and C-HÁ Á ÁO hydrogen bonds. Organic 2,6-xylidinium cations and inorganic nitrate anions interact to form a three-dimensional hydrogen-bond network.

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“…The Ga 4 F 2 derivative contains a 2D channel system showing both hydrophobic and hydrophilic portions. 202 203 A caesium hydroxygallophosphate, CsGa 2 (OH) 2 [(PO 4 )H(PO 4 )], was obtained by hydrothermal synthesis. The structure consists of {GaO 4 (OH) 2 } octahedra and {PO 4 } tetrahedra forming [Ga(OH)PO 4 ] N layers along the a-axis.…”

Section: Methodsmentioning

confidence: 99%