Startseite Naturwissenschaften Microporous, noncentrosymmetric, octahedral/tetrahedral-framework phases: K2/3Li1/3Nb2PO8, K2/3Li1/3Ta2PO8 and K2/3Ag1/3Nb2PO8
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Microporous, noncentrosymmetric, octahedral/tetrahedral-framework phases: K2/3Li1/3Nb2PO8, K2/3Li1/3Ta2PO8 and K2/3Ag1/3Nb2PO8

Veröffentlicht/Copyright: 28. Juli 2010
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Zeitschrift für Kristallographie - Crystalline Materials
Aus der Zeitschrift Zeitschrift für Kristallographie - Crystalline Materials Band 209 Heft 10

Abstract

The syntheses, crystal structures and some properties of K2/3Li1/3Nb2PO8, K2/3Li1/3Ta2PO8 and K2/3Ag1/3Nb2PO8 are reported. They consist of an octahedral (MO6: M = Nb, Ta)/tetrahedral (PO4) framework, built up from M–O–P and M–O–M bonds, surrounding cavities and channels occupied by the Ag+/Li+ and K+ cations. The degree of distortion of the NbO6 and TaO6 octahedra are similar for all these phases. The extraframework cations occupy different, distinct sites, depending primarily on their ionic radii, with a concomitant effect on physical properties of the crystals. The degree of “underbonding” of these guest species is similar to that found for the same cations in aluminosilicate zeolite materials.

Crystal data: K2/3Li1/3Nb2PO8, Mr = 373.22, rhombohedral, space group R32 (No. 155), a = 8.3918(2) Å, α = 104.148(1)°, V = 525.79(3) Å3, Z = 3, Rp = 4.88%, Rwp = 7.61% and χ2 = 1.19 for 117 parameters and 21505 observations (time-of-flight powder neutron diffraction data; 0.6 < d < 4.0 Å). K2/3Li1/3Ta2PO8, Mr = 549.24, rhombohedral, R32 (No. 155), a = 8.3791(2) Å, α = 104.141(1)°, V = 523.46(3) Å3, Z = 3, Rp = 4.06%, Rwp = 6.23%, χ2 = 1.15, 113 parameters, 21505 observations, 0.6 < d < 4.0 Å. K2/3Ag1/3Nb2PO8, Mr = 406.80, rhombohedral, R32 (No. 155), a = 8.5215(2) Å, α = 104.698(1)°, V = 544.42(8) Å3, Z = 3, Rp = 5.47%, Rwp = 6.95%, χ2 = 1.75 (constant-wavelength powder neutron diffraction data), 51 parameters, 3395 observations.

Published Online: 2010-7-28
Published in Print: 1994-10-1

© 2015 Oldenbourg Wissenschaftsverlag GmbH, Rosenheimer Str. 145, 81671 München

Artikel in diesem Heft

  1. Microporous, noncentrosymmetric, octahedral/tetrahedral-framework phases: K2/3Li1/3Nb2PO8, K2/3Li1/3Ta2PO8 and K2/3Ag1/3Nb2PO8
  2. Proton disorder of water molecules in the structure of lithium hydrogen cis-4-cyclohexene-1,2-dicarboxylate dihydrate, LiHC8H8O4 · 2 H2O
  3. Crystal structures of tetrabutylbis[(2-(benzoylthio)acetato)]-distannoxane and tetrabutylbis[2-(2,4-dichloro-5-methylphenylthio)-acetato]distannoxane dimers
  4. Crystal structure of racemic trans-2-(4-methylphenyl)-cyclohexanol
  5. Crystal structure of 2-bromomethyl-1-(2′-methoxy-3,5-dimethyl)-naphthalene1
  6. Structures of the hydrogen (+)-tartrates of sodium, thallium(I) and silver(I)
  7. Crystal structures of N-aryl-N-pentopyranosylamines
  8. Crystal structure of 2-triphenylstannyl 1,2-benzisothiazol-3(2H)-one 1,1-dioxide-quinoline N-oxide (1/1) molecular complex
  9. The Crystal Structure of benzoyl – histidine monohydrate
  10. Crystal and molecular structure of tris (1,3-diphenylpropane-1,3-dionato)cobalt(III)
  11. Crystal and molecular structure of 3,5-dimethyl-N-nitroso-4-oximino-2,6-diphenyl piperidin-4-one(DMNOH)1
  12. Crystal structure of dicaesium tetrachlorothulate(II), Cs2TmCl4
  13. Crystal structure of bis(triphenylphosphine)iminium bis(l,3-dithiole-2-thione-4,5-dithiolato)aurate(III) dichloromethane hemisolvate, [N(P(C6H5)3)2]+[(C3S5)2Au]−· ½ CH2C12
  14. Crystal structure of 2-(1-carboxyphenyl)-N-methylammonium chloride hydrate, [o-HOOC(C6H4)NH2(CH3)]+Cl−·H2O
  15. Crystal structure of 2-(1-carboxyphenyl)-N-methylammonium chloride, [o-HOOC(C6H4)NH2(CH3)]+ Cl−
  16. Redetermination of the crystal structure of N-methylanthranilic acid, o-H3CNHC6H4CO2H
  17. Crystal structure of dimethylammonium bromide, (CH3)2NH2+Br−
  18. Crystal structure of (Z)-3-(4-benzyloxy-3-methoxyphenyl)-2-(2-methoxyphenoxy)propenoic acid, C24H22O6
  19. Crystal structure of 1,3-diisopropyl-4,5-dimethylimidazolium chloride tris(trichlormethane), C11H21CIN2 · 3CHCl3
  20. Crystal structure of μ2-(dicyclohexylphosphino)-μ2-[(bis(trimethylsilyl)methylene)phosphino]hexacarbonyl-diiron(Fe-Fe), ((H3C)3Si)2CP(C6H11)2PFe2(CO)6
  21. Crystal structure of tetracarbonyl(η2,1η4,1 -3-tert-butyl-1,1,5,5-tetrakis(trimethylsilyl)-2,3,4-triphosphapenta-1,4-diene) molybdenum(0), ((H9C4)((H3C)3Si)4(C2P3))Mo(CO)4
  22. Crystal structure of carbonyl(η1.2,2η4.5,2 -3-tert-butyl-1,1,5,5-tetrakis(trimethylsilyl)-2,3,4-triphosphapenta-1,4-diene)-nickel(0), ((H3C)3Si)4(C4H9)C2P3NiCO
  23. Crystal structure of μ2-(di-tert-butylphosphino)-μ2-[(dicarbonyl-η2-(bis(trimethylsilyl)methylene)phosphino)-nickel(0)]-tetracarbonyldinickel(Ni-Ni), (C4H9)2P[((CH3)3Si)2CPNi(CO)2](CO)4Ni2
  24. Crystal structure of dicarbonyl(cyclopentadienyl)-[2-tert-butyl-3-phenyl-3-trimethylsilyl]diphosphiranido(1−)iron, (H5C6)((H3C)3Si)C(H9C4)P2Fe(CO)2(C5H5)
  25. Crystal structure of (5R,2R)-5-chloro-1-methoxycarbonyl-piperidine-2-carboxylic acid amide, C8H13ClN2O3
  26. Crystal structure of cesium-tert-butanolate, CsOC4H9
https://doi.org/10.1524/zkri.1994.209.10.781

Artikel in diesem Heft

  1. Microporous, noncentrosymmetric, octahedral/tetrahedral-framework phases: K2/3Li1/3Nb2PO8, K2/3Li1/3Ta2PO8 and K2/3Ag1/3Nb2PO8
  2. Proton disorder of water molecules in the structure of lithium hydrogen cis-4-cyclohexene-1,2-dicarboxylate dihydrate, LiHC8H8O4 · 2 H2O
  3. Crystal structures of tetrabutylbis[(2-(benzoylthio)acetato)]-distannoxane and tetrabutylbis[2-(2,4-dichloro-5-methylphenylthio)-acetato]distannoxane dimers
  4. Crystal structure of racemic trans-2-(4-methylphenyl)-cyclohexanol
  5. Crystal structure of 2-bromomethyl-1-(2′-methoxy-3,5-dimethyl)-naphthalene1
  6. Structures of the hydrogen (+)-tartrates of sodium, thallium(I) and silver(I)
  7. Crystal structures of N-aryl-N-pentopyranosylamines
  8. Crystal structure of 2-triphenylstannyl 1,2-benzisothiazol-3(2H)-one 1,1-dioxide-quinoline N-oxide (1/1) molecular complex
  9. The Crystal Structure of benzoyl – histidine monohydrate
  10. Crystal and molecular structure of tris (1,3-diphenylpropane-1,3-dionato)cobalt(III)
  11. Crystal and molecular structure of 3,5-dimethyl-N-nitroso-4-oximino-2,6-diphenyl piperidin-4-one(DMNOH)1
  12. Crystal structure of dicaesium tetrachlorothulate(II), Cs2TmCl4
  13. Crystal structure of bis(triphenylphosphine)iminium bis(l,3-dithiole-2-thione-4,5-dithiolato)aurate(III) dichloromethane hemisolvate, [N(P(C6H5)3)2]+[(C3S5)2Au]−· ½ CH2C12
  14. Crystal structure of 2-(1-carboxyphenyl)-N-methylammonium chloride hydrate, [o-HOOC(C6H4)NH2(CH3)]+Cl−·H2O
  15. Crystal structure of 2-(1-carboxyphenyl)-N-methylammonium chloride, [o-HOOC(C6H4)NH2(CH3)]+ Cl−
  16. Redetermination of the crystal structure of N-methylanthranilic acid, o-H3CNHC6H4CO2H
  17. Crystal structure of dimethylammonium bromide, (CH3)2NH2+Br−
  18. Crystal structure of (Z)-3-(4-benzyloxy-3-methoxyphenyl)-2-(2-methoxyphenoxy)propenoic acid, C24H22O6
  19. Crystal structure of 1,3-diisopropyl-4,5-dimethylimidazolium chloride tris(trichlormethane), C11H21CIN2 · 3CHCl3
  20. Crystal structure of μ2-(dicyclohexylphosphino)-μ2-[(bis(trimethylsilyl)methylene)phosphino]hexacarbonyl-diiron(Fe-Fe), ((H3C)3Si)2CP(C6H11)2PFe2(CO)6
  21. Crystal structure of tetracarbonyl(η2,1η4,1 -3-tert-butyl-1,1,5,5-tetrakis(trimethylsilyl)-2,3,4-triphosphapenta-1,4-diene) molybdenum(0), ((H9C4)((H3C)3Si)4(C2P3))Mo(CO)4
  22. Crystal structure of carbonyl(η1.2,2η4.5,2 -3-tert-butyl-1,1,5,5-tetrakis(trimethylsilyl)-2,3,4-triphosphapenta-1,4-diene)-nickel(0), ((H3C)3Si)4(C4H9)C2P3NiCO
  23. Crystal structure of μ2-(di-tert-butylphosphino)-μ2-[(dicarbonyl-η2-(bis(trimethylsilyl)methylene)phosphino)-nickel(0)]-tetracarbonyldinickel(Ni-Ni), (C4H9)2P[((CH3)3Si)2CPNi(CO)2](CO)4Ni2
  24. Crystal structure of dicarbonyl(cyclopentadienyl)-[2-tert-butyl-3-phenyl-3-trimethylsilyl]diphosphiranido(1−)iron, (H5C6)((H3C)3Si)C(H9C4)P2Fe(CO)2(C5H5)
  25. Crystal structure of (5R,2R)-5-chloro-1-methoxycarbonyl-piperidine-2-carboxylic acid amide, C8H13ClN2O3
  26. Crystal structure of cesium-tert-butanolate, CsOC4H9
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