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  • Schlegel Diagrams  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Zur Isotypie von Titanaten mit Silicaten: Über Cs2Li2[SiO4] und Cs2Li2[TiO4]Professor Josef Goubeau in memoriam (1991)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 593 (1991), S. 17-34 
    Details
    ISSN: 0044-2313
    Keywords: Cesium Lithium Orthotitanate, Silicate ; Crystal Structure ; Schlegel Diagrams ; MAPLE Calculations ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Isotypism of Titanates and Silicates: About Cs2Li2[SiO4] and Cs2Li2[TiO4]For the first time colourless single crystals of Cs2Li2[SiO4] have been prepared by heating of a well ground mixture of the binary oxides CsO0.67, LiO0.5 and SiO2[Cs:Li:Si = 2.2:2.0:1.0; 450°C; 21 d] in tightly closed Ni tubes. The new oxosilicate crystallizes triclinic (space group P1 with a = 959.6(3), b = 577.4(2), c = 558.1(2) pm, α = 92.52(3)°, β = 110.93(3)°, γ = 94.45(3)°, Guinier-Simon powder data). The crystal structure was determined by four-circle diffractometer data [Siemens AED 2, 1612 I°(hkl), Z = 2, R = 7.2%, Rw = 6,5%], parameters see text.Cs2Li2[TiO4] has also been prepared as colourless single crystalls from CsO0.56, LiO0.5 und TiO2 (Cs:Li:Ti = 2.3:2.2:1.0; 650°C; 68 d, Ni tube) and investigated by x-ray [four-circle diffractometer data, Philips PW 1100, 2193 from 2383 I°(hkl). Z = 2, R = 7.6%, Rw = 6.1%, space group P1 with a = 951.0(1), b = 594.5(1), c = 582.6(1) pm, α = 93.11(1)°, β = 110.37(1), γ = 95.04(1)°, Guinier-Simon powder data]. The Madelung Part of Lattice Energy, MAPLE, and Effective Coordination Numbers, ECoN, these via Mean Fictive Ionic Radii, MEFIR, have been calculated. A detailed comparison of the structures is carried out.
    Notes: Erstmals wurden farblose Einkristalle von Cs2Li2[SiO4] durch Tempern inniger Gemenge der binären Oxide CsO0,67, LiO0,5 und SiO2 [Cs:Li:Si = 2,2:2,0:1,0; 450°C; 21 d] in fest verschlossenen Ni-Bömbchen erhalten. Es liegt Isotypie mit Rb2Li2[MO4] (M = Si, Ge, Ti) vor: triklin (Raumgruppe P1) mit a = 959,6(3) pm, b = 577,4(2) pm, c = 558,1(2) pm, α = 92,52(3)°, β = 110,93(3)°, γ = 94,45(3)°, (Guinier-Simon-Daten). Die Kristallstruktur wurde mittels Vierkreisdiffraktometerdaten aufgeklärt [Siemens AED 2, 1612 I°(hkl), Z = 2, R = 7,2%, Rw = 6,5%], Parameter siehe Text.Ebenfalls neu wurde Cs2Li2[TiO4] in Form farbloser Einkristalle durch Tempern inniger Gemenge von CsO0,56, LiO0,5 und TiO2 [Cs:Li:Ti = 2,3:2,2:1,0; 650°C; 68 d, Ag-Bömbchen] dargestellt und röntgenographisch untersucht. Die Strukturverfeinerung [Vierkreisdiffraktometerdaten, Philips PW 1100, 2193 von 2383 I°(hkl), Z = 2, R = 7,6%, Rw = 6,1%, Raumgruppe P1 mit a = 951,0(1) b = 594,5(1), c = 582,6(1) pm, α = 93,11°(1), β = 110,37(1)°, γ = 95,04(1)° Guinier-Simon-Daten] bestätigt auch hier Isotypie mit Rb2Li2[SiO4]. Der Madelunganteil der Gitterenergie, MAPLE, sowie Effektive Koordinationszahlen, ECoN, diese über Mittlere Fiktive Ionenradien, MEFIR, wurden berechnet. Für die nun bekannten Vertreter dieses Typs wurde ein Isotypievergleich vorgenommen.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19915930104
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  • 2
    Electronic Resource
    Electronic Resource
    Ein neues Oxoberyllat: K2Na4[O2BeOBeO2]Frau Professor Marianne Baudler zum 70. Geburtstage am 27. April 1991 gewidmet (1991)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 594 (1991), S. 87-94 
    Details
    ISSN: 0044-2313
    Keywords: Potassium Sodium Oxoberyllate ; Single Crystal Structure ; Schlegel Diagrams ; MAPLE Calculations ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On K2Na4[O2BeOBeO2]For the first time colourless single crystals of K2Na4[Be2O5] which are isotypic with K2Na4[Co2O5] [2] and Rb2Na4[Co2O5] have been prepared by heating e.g. a well ground mixture of K2O, Na2O and BeO (K:Na:Be = 2.2:4.4:2; 750°C; 21 d; Ni-tube). The crystal structure was solved by four-circle diffractometer data [Siemens AED 2; 389 Io(hkl); space group P42/mnm; Z = 2; a = 595.17(4) pm, c = 1 002.66(9) pm; R = 4.1%; Rw = 2.3%].Mean Fictive Ionic Radii, MEFIR, Effective Coordination Numbers, ECoN, the Madelung Part of Lattice Energy, MAPLE, and the charge distribution are calculated.
    Notes: Erstmals wurde K2Na4[Be2O5], mit K2Na4[Co2O5] [2] und Rb2Na4[Co2O5] isotyp, in Form farbloser Einkristalle aus Gemengen von K2O, Na2O und BeO (K:Na:Be=2,2:4,4:2; 750°C; 21 d; Ni-Bombe), dargestellt. Die Kristallstruktur wurde über Vierkreisdiffraktometerdaten [Siemens AED 2; 389 Io(hkl); Raumgruppe P42/mnm; Z = 2; a = 595,17(4) pm, c = 1 002,66(9)pm; R = 4,1%; Rw = 2,3%] aufgeklärt. Mittlere Fiktive Ionenradien, MEFIR, Effektive Koordinationszahlen, ECoN, der Madelunganteil der Gitterenergie, MAPLE, sowie die Ladungsverteilung, wurden berechnet.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19915940110
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  • 3
    Electronic Resource
    Electronic Resource
    Zur Konstitution von Alkaliruthenaten (VI). 2. Über den Aufbau von K2[RuO3(OH)2] (1991)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 601 (1991), S. 41-46 
    Details
    ISSN: 0044-2313
    Keywords: Ruthenates(VI) ; preparation ; single crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Constitution of Ruthenates (VI) with Alkali Metals. 2. On the Structure of K2[RuO3(OH)2]By evaporating an aqueous extract of a KOH melt with RuO2 (KOH: RuO2 = 20:1; at air, corundum crucible, 30 min.) rubin-red single crystals of K2[RuO3(OH)2] have been prepared. Up to this day pure samples could not be prepared.The structure determination (four circle diffractometer, MoKα, 1664 I0 (hkl), R = 2.1%) confirms a new type of structure [space group P212121 (Nr. 19) with a = 803.1(5), b = 669.9(3) und c = 1 061.6(6) pm]. Ru is trigonal-bipyramidale coordinated.
    Notes: Durch Einengen eines wäßrigen Auszuges einer KOH-Schmelze mit RuO2 (KOH: RuO2 = 20:1; an der Luft, Sinter-Korundtiegel, 30 Min.) wurden rubinrote Einkristalle von K2[RuO3(OH)2] erhalten. Reine Pulverproben konnten bislang nicht dargestellt werden.Die Strukturaufklärung (Vierkreisdiffraktometer, MoKα, 1664 IO (hkl), R = 2, 1%) belegt einen neuen Strukturtyp [Raumgruppe P212121 (Nr. 19) mit a = 803,1(5), b = 669,9(3) und c = 1 061,6(6) pm], in dem Ru trigonal-byramidal koordiniert ist.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19916010105
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  • 4
    Electronic Resource
    Electronic Resource
    Ketten aus Ringen: K5{Li[Ge2O7]}  -  das erste „Litho-Digermanat“Professor Ulrich Wannagat zum 70. Geburtstage gewidmet. (1993)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 811-818 
    Details
    ISSN: 0044-2313
    Keywords: Alkali metal digermanate ; preparation ; crystal structure ; MAPLE calculations ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Chains consisting of Rings: K5{Li[Ge2O7]}  -  the First ‘Litho-Digermanate’By heating of a well-ground mixture of the binary oxides KO0.55, Li2O and GeO2 (K: Li: Ge = 6.1 : 2.2 : 2; Ni-tube; 600°C; 49 d) we obtained for the first time single crystals of K5{Li[Ge2O7]}. This ‘lithodigermanate’ represents a completely new type of structure: monoclinic, space group P21/c, a = 624.9(2) pm, b = 1586.6(8) pm; c = 1058.3(6) pm and β = 109.38(4)°; Guinier-Simon data, Z = 4. The structure was solved by four-circle diffractometer data [Siemens AED II, Mo—Kα; 2872 Io(hkl); R = 4.5%, Rw = 3.3%], parameters see text. The Madelung Part of Lattice Energy, MAPLE, and Effective Coordination Numbers, ECoN, these calculated via Mean Fictive Ionic Radii, MEFIR, as well as charge distribution CHARDI, are calculated and discussed.
    Notes: Durch Tempern inniger Gemenge der binären Oxide KO0,55, Li2O und GeO2 (K: Li: Ge = 6,1: 2,2: 2; Ni-Bömbchen; 600°C; 49 d) wurden erstmals Kristalle von K5{Li[Ge2O7]} erhalten. Das „Litho-Digermanat“ repräsentiert einen völlig neuen Strukturtyp, der „Ketten aus Ringen {Li[Ge2O7]5}“ enthält (monoklin, Raumgruppe P21/c mit a = 624,9(2) pm, b = 1 586,6(8) pm; c = 1058,3(6) pm und β = 109,38(4)°; Guinier-Simon Daten, Z = 4). Die Struktur wurde mittels Vierkreisdiffraktometerdaten [Siemens AED II; Mo—Kα; 2872 Io(hkl); R = 4,5%; Rw = 3,3%] bestimmt, Parameter siehe Text. Der Madelunganteil der Gitternergie, MAPLE, und Effektive Koordinationszahlen, ECoN, diese über Mittlere Fiktive Ionenradien, MEFIR, sowie die Ladungsverteilung CHARDI werden berechnet und diskutiert.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19936190502
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  • 5
    Electronic Resource
    Electronic Resource
    Koordinationszahl 4 oder 6 für Lithium??: Die Kristallstruktur von wasserfreiem Lithiumpermanganat, Li[MnO4] (1993)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 1419-1425 
    Details
    ISSN: 0044-2313
    Keywords: Lithium permanganate, Li[MnO4] ; preparation ; crystal structure ; neutron powder data ; MAPLE calculation ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Coordination Number 4 or 6 for Lithium?: The Crystal Structure of Lithium Permanganate, Li[MnO4]Waterless 7Li[MnO4] was obtained by dehydration of 7Li[MnO4] · 3 D2O at 60°C above P4O10 in vacuum as violet powder.The structure determination by neutron diffraction measurements via pulsed polychromatic neutron source [time-of-flight powder diffractometer; profile-R-value = 2.1%, Bragg-R-value = 7.4%] confirms the space group Cmcm with a = 551.402(8), b = 839.754(15), c = 635.911(10) pm (Z = 4); parameters see text. The crystal structure of Li[MnO4] corresponds to the CrVO4-type with coordination number 6 for lithium and 4 for manganese.The Madelung Part of Lattice Energie, MAPLE, the Effective Coordination Numbers, ECoN and the charge distribution were calculated and discussed.
    Notes: Durch Trocknung von 7Li[MnO4] · 3 D2O bei 60°C über P4O10 im Vakuum wurde wasserfreies 7Li[MnO4] als violettes Pulver erhalten.Die Strukturaufklärung mittels Neutronenbeugungsmessungen im gepulsten polychromatischen Neutronenstrahl [Flugzeitdiffraktometer; Profil-R-Wert = 2,1%, Bragg-R-Wert = 7,4%] belegt die Raumgruppe Cmcm mit a = 551,402(8), b = 839,754(15), c = 635,911(10)pm (Z = 4); Parameter siehe Text. Die Kristallstruktur von Li[MnO4] entspricht dem CrVO4-Typ mit der Koordinationszahl 6 für Lithium und 4 für Mangan.Der Madelunganteil der Gitterenergie, MAPLE, Effektive Koordinationszahlen, ECoN und die Ladungsverteilung wurden berechnet und diskutiert.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19936190817
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  • 6
    Electronic Resource
    Electronic Resource
    Na4[PbO4]  -  Darstellung neuer Plumbate(IV) durch Oxydation intermetallischer PhasenProfessor Hugo F. Franzen zum 60. Geburtstage gewidmet (1994)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 1346-1350 
    Details
    ISSN: 0044-2313
    Keywords: Sodium orthoplumbate ; preparation ; crystal structure ; MAPLE and CHARDI calculations ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Na4[PbO4]  -  Preparation of new Plumbates(IV) by Oxidizing Intermetallic PhasesBy oxidizing NaPb with Na2O2 (molar ratio Na2O2:NaPb = 2.04:1; Ag-tubes; 600°C/50d) we obtained for the first time small orange coloured single crystals of Na4[PbO4]: Na4[SiO4]-type [2], P—1 (I.T. No. 2) with a = 898.5(3); b = 675.6(3); c = 592.2(2) pm; α = 124.75(1)°; β = 96.75(1)°; γ = 100.18(2)°; Z = 2; (four circle diffractometer data (MoKα-; 3 251 Io(hkl); R = 3.4%; Rw = 3.0%), parameters see text. Furthermore the Madelung part of lattice energy (MAPLE), effective coordination numbers (ECoN), mean fictive ionic radii (MEFIR) and the charge distribution (CHARDI) are being calculated.
    Notes: Durch Oxydation von NaPb mit Na2O2 (mol. Verhältnis Na2O2:NaPb = 2,04:1; Ag-Bömbchen; 600°C/50d) wurden erstmals orangefarbene, gedrungene Einkristalle von Na4[PbO4] erhalten: Na4[SiO4]-Typ [2], P—1 (I.T. No. 2) mit a = 898,5(3); b = 675,6(3); c = 592,2(2) pm; α = 124,75(1)°; β = 96,75(1)°; γ = 100,18(2)°; Z = 2; (Vierkreisdiffraktometerdaten; MoKα-; 3 251 Iohkl); R = 3,4%; Rw = 3,0%), Parameter siehe Text. Ferner werden der Madelunganteil der Gitterenergie (MAPLE), Effektive Koordinationszahlen (ECoN), Mittlere Fiktive Ionenradien (MEFIR) und die Ladungsverteilung (CHARDI) berechnet.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19946200803
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  • 7
    Electronic Resource
    Electronic Resource
    Darstellung und Kristallstruktur von K6[Al2O6] und Rb6[Al2O6]Professor Heinz Dieter Lutz zum 60. Geburtstage gewidmet (1994)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 882-887 
    Details
    ISSN: 0044-2313
    Keywords: K6[Al2O6], Rb6[Al2O6] ; preparation ; crystal structure ; MAPLE ; CHARDI ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation of Crystal Structure of K6[Al2O6] and Rb6[Al2O6]Colourless single crystals of K6[Al2O6] have been prepared from intimate mixtures of KAlO2 and K2O (550°C, 90 d). The structure determination from four-circle diffractometer data (MoKα, 742 Io(hkl), R = 2.2%, Rw = 2.1%) confirms the space group C2/m with Z = 2; a = 698.25 pm, b = 1 103.54 pm, c = 646.49 pm, β = 102.49°.Colourless single crystals of hitherto unknown Rb6[Al2O6] have been prepared from intimate mixtures of RbAlO2 and Rb2O (520°C, 120 d). The structure determination from four-circle diffractometer data (MoKα, 1 240 Io(hkl)) results in the residual values R = 7.2%, Rw = 4.9%; space group C2/m; a = 725.92 pm, b = 1 143.33 pm, c = 678.06 pm, β = 104.05°; Z = 2.K6[Al2O6] and Rb6[Al2O6] are isostructural with K6[Fe2O6]. A characteristic structure unit is the anion [Al2O6]6- consisting of two edge-sharing [AlO4] tetrahedra.Effective Coordination Numbers (ECoN), Mean Fictive Ionic Radii (MEFIR), the Madelung Part of Lattice Energy (MAPLE) and the Charge Distribution (CHARDI) are calculated and discussed.
    Notes: Farblose Einkristalle von K6[Al2O6] wurden aus innigen Gemengen von KAlO2 und K2O erhalten (550°C, 90 d). Die Strukturaufklärung (Vierkreisdiffraktometer, MoKα, 742 Io(hkl), R = 2,2%, Rw = 2,1%) bestätigt die Raumgruppe C2/m mit Z = 2; a = 698,25 pm, b = 1 103,54 pm, c = 646,49 pm, β = 102,49°.Analog erhielten wir erstmals Rb6[Al2O6] aus RbAlO2 und Rb2O in Form farbloser Einkristalle (520°C, 120 d). Die Strukturaufklärung (Vierkreisdiffraktometer, MoKα, 1 240 Io(hkl)) ergab in C2/m die Residualwerte R = 7,2%, Rw = 4,9%; a = 725,92 pm, b = 1 143,33 pm, c = 678,06 pm, β = 104,05°.K6[Al2O6] und Rb6[Al2O6] sind mit K6[Fe2O6] isotyp; charakteristische Strukturelemente sind die Anionen [Al2O6]6-, die aus zwei kantenverknüpften [AlO4]-Tetraedern bestehen.Effektive Koordinationszahlen (ECoN), Mittlere Fiktive Ionenradien (MEFIR), der Madelunganteil der Gitterenergie (MAPLE) sowie die Ladungsverteilung (CHARDI) werden berechnet und diskutiert.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19946200522
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  • 8
    Electronic Resource
    Electronic Resource
    Li10Si2PbIIO10 = Li20[(SiO4)4(OPbO2PbO)]  -  Das erste „gemischte“ Silicat-Plumbat(II)Professor Kurt Issleib in memoriam (1994)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 2026-2032 
    Details
    ISSN: 0044-2313
    Keywords: Lithium silicate plumbate ; preparation ; crystal structure ; MAPLE and CHARDI calculations ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Li10Si2PbIIO10 = Li20[(SiO4)4(OPbO2PbO)]  -  The first „mixed“ Silicate-Plumbate(II)Colourless crystals of Li10Si2PbO10 were obtained by heating a well-ground mixture of LiPb, Li2O2 and „SiO2“ (deriving from Duran glas) in Ag-tubes (650°C; 60 d). The crystal structure was determined (four-circle diffractometer data, Mo—Kα-, 1 474 Io(hkl), R = 4.2%, Rw = 2.8%, parameters see text). The silicate-plumbate crystallizes monoclinic (space group C2/m; I. T. No. 12) with a = 2985.1(4); b = 610.6(6); c = 512.8(1) pm, β = 99.70(9)° (four-circle data), Z = 4.Further the Madelung Part of Lattice Energy (MAPLE), Effective Coordination Numbers (ECoN), the Mean Fictive Ionic Radii (MEFIR) and the Charge Distribution (CHARDI) are being calculated.
    Notes: Farblose Kristalle von Li10Si2PbO10 entstanden beim Tempern inniger Gemenge von LiPb, Li2O2 und „SiO2“ (aus Duranglas) in Ag-Bömbchen (650°C; 60 d). Die Kristallstruktur wurde aufgeklärt (Vierkreisdiffraktometerdaten, Mo—Kα-, 1 474 Io(hkl), R = 4,2%, Rw = 2,8%, Parameter siehe Text). Das Silicat-Plumbat kristallisiert monoklin (Raumgruppe C2/m; I. T. No. 12) mit a = 2 985,1(4); b = 610,6(1); c = 512,8(1) pm; β = 99,70(9) (Vierkreisdaten), Z = 4.Ferner werden der Madelunganteil der Gitterenergie (MAPLE), Effektive Koordinationszahlen (ECoN), die Mittleren Fiktiven Ionenradien (MEFIR) sowie die Ladungsverteilung (CHARDI) berechnet.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19946201203
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  • 9
    Electronic Resource
    Electronic Resource
    Neue Silicate mit „Stuffed Pyrgoms“: CsKNaLi9{Li[SiO4]}4, CsKNa2Li8{Li[SiO4]}4, RbNa3Li8{Li[SiO4]}4 [1] und RbNaLi4{Li[SiO4]}2 [2]Professor Horst Sabrowsky zum 60. Geburtstage gewidmet (1994)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 1495-1508 
    Details
    ISSN: 0044-2313
    Keywords: New Lithosilicates ; preparation ; crystal structure ; MAPLE and CHARDI calculations ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: More Silicates with „Stuffed Pyrgoms“: CsKNaLi9{Li[SiO4]}4, CsKNa2Li8{Li[SiO4]}4, RbNa3Li8{Li[SiO4]}4 [1] and RbNaLi4{Li[SiO4]}2 [2]Single crystals of the new silicates CsKNaLi9{Li[SiO4]}4, CsKNa2Li8{Li[SiO4]}4, RbNa3Li8{Li[SiO4]}4 and RbNaLi4{Li[SiO4]}2 as well as powder (Rb-containing compounds only) were obtained for the first time. The samples were prepared by heating well ground mixtures of the binary oxides in Ni and Ag tubes, respectively. The structure determination was carried out by four-circle diffractometer data (MoKα radiation; Siemens AED 2):CsKNaLi9{Li[SiO4]}4: tetragonally prismatic crystals, light yellow; 726 I0(hkl), R = 4.4%, Rw = 2.8%; a = 1 102.0(6), c = 637.9(5) pm; Z = 2; space group I4/m; 2 CsO0.55 + Li4TlO4 + glas (560°C, 15 d).CsKNa2Li8{Li[SiO4]}4: tetragonally prismatic crystals, light yellow; 727 I0(hkl), R = 4.4%, Rw = 2.6%; a = 1 103.5(7), c = 637.7(4) pm; Z = 2; space group I4/m; 1.1 CsO0.61 + 1.1 KO0.55 + 1.4 NaO0.52 + 6.5 Li2O + 4 SiO2 (600°C, 60 d).RbNa3Li8{Li[SiO4]}4: tetragonally prismatic crystals, colourless; 600 I0(hkl), R = 2.3%, Rw = 2.0%; a = 1 092.08(6), c = 632.76(4) pm; Z = 2; space group I4/m; 4 RbO0.57 + 3 NaO0.52 + 6.5 Li2O + 4 SiO2 (650°C, 63 d).RbNaLi4{Li[SiO4]}2: monoclinic, ball-shaped, colourless; 1 224 I0(hkl), R = 3.1%, Rw = 3.1%; a = 1 573.10(13), b = 630.48(5), c = 781.25(8) pm, b = 90.566(8)°; Z = 4; space group C2/m; 1.1 RbO0.52 + 1.2 NaO0.45 + 5 Li2O + 4 SiO2 (700°C, 40 d).
    Notes: Einkristalle der neuen Silicate CsKNaLi9{Li[SiO4]}4, CsKNa2Li8{Li[SiO4]}4, RbNa3Li8{Li[SiO4]}4 und RbNaLi4{Li[SiO4]}2, sowie Pulver der Rb-haltigen Verbindungen wurden dargstellt. Die Proben entstanden durch Tempern inniger Gemenge binärer Oxide in geschlossenen Ni- bzw. Ag-Bömbchen. Die Strukturaufklärung erfolgte jeweils durch Vierkreisdiffraktometerdaten (MoKα-Strahlung; Siemens AED 2):CsKNaLi9{Li[SiO4]}4: tetragonale Prismen, hellgelb; 726 I0(hkl), R = 4,4%, Rw = 2,8%; a = 1 102,0(6), c = 637,9(5) pm; Z = 2; Raumgruppe I4/m; 2 CsO0,55 + LiTlO4 + Duran-Glas (560°C, 15 d).CsKNa2Li8{Li[SiO4]}4: tetragonale Prismen, hellgelb; 727 I0(hkl), R = 4,4%, Rw = 2,6%; a = 1 103,5(7), c = 637,7(4) pm; Z = 2; Raumgruppe I4/m; 1,1 CsO0,61 + 1,1 KO0,55 + 1,4 NaO0,52 + 6,5 Li2O + 4 SiO2 (600°C, 60 d).RbNa3Li8{Li[SiO4]}4: tetragonale Prismen, farblos; 600 I0(hkl), R = 2,3%, Rw = 2,0%; a = 1 092,08(6), c = 632,76(4) pm; Z = 2; Raumgruppe I4/m; 4 RbO0,57 + 3 NaO0,52 + 6,5 Li2O + 4 SiO2 (650°C, 63 d).RbNaLi4{Li[SiO4]}2: monoklin, kugelförmig, farblos; 1 224 I0(hkl), R = 3,1%, Rw = 3,1%; a = 1 573,10(13), b = 630,48(5), c = 781,25(8) pm, b = 90,566(8)°; Z = 4; Raumgruppe C2/m; 1,1 RbO0,52 + 1,2 NaO0,45 + 5 Li2O + 4 SiO2 (700°C, 40 d)
    Additional Material: 17 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19946200902
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    Electronic Resource
    Electronic Resource
    Zur Kristallstruktur von KGaO2 und NaGaO2(II) [1]Herrn Professor Wolfgang Beck zum 60. Geburtstage am 5. Mai 1992 gewidmet (1992)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 611 (1992), S. 73-80 
    Details
    ISSN: 0044-2313
    Keywords: Potassium, sodium gallate ; preparation ; crystal structure ; MAPLE calculation ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Crystal Structure of KGaO2 and NaGaO2(II)By annealing intimate mixtures of K2O, Na2O and β-Ga2O3 (K : Na : Ga = 2.2 : 1.1 : 1) we obtained single crystals of K2Na4[(GaO3)2] and KGaO2 (Ag-cylinder; 600°C, 26 d). Structure refinement for KGaO2 (four-circle diffractometer data, Mo-Kα, 1 390 or 1 390 Io(hkl); R = 5.55%, Rw = 3.05%) confirms the space group Pbca; a = 552.1 pm, b = 1 107.5 pm, c = 1 580.7 pm, Z = 16.According to K[GaO4/2] we have a stuffed cristobalite-related structure.Single crystals of NaGaO2(II) were grown by annealing intimate mixtures of Na2O2 and GaAs (Na2O2 : GaAs 4.1 : 1) in Ag-cylinders that were not completely closed (570°C, 6 weeks). Structure refinement for NaGaO2(II) (four-circle diffractometer data, Mo-Kα, 588 of 616 Io(hkl); R = 4.54%, Rw = 4.06%) confirms the spacegroup Pna21; a = 549.8(1) pm, b = 720.6(1) pm, c = 529.8(1) pm, Z = 4. In NaGaO2(II) we have a wurtzite-related structure.
    Notes: Beim Tempern inniger Gemenge von K2O, Na2O und β-Ga2O3 (vor Verreiben: K : Na : Ga = 2,2 : 1,1 : 1) erhielten wir neben Einkristallen von K2Na4[(GaO3)2] auch solche von KGaO2 (Ag-Zylinder, 600°C, 26 d). Die Strukturverfeinerung (Vierkreisdiffraktometerdaten, Mo-Kα, 1 390 von 1 390 Io(hkl); R = 5,55%, Rw = 3,05%) belegt die Raumgruppe Pbca; a = 552,1 pm, b = 1 107,5 pm, c = 1 580,7 pm, Z = 16.Es liegt eine aufgefüllte Cristobalit-Variante gemäß K[GaO4/2] vor.Einkristalle von NaGaO2(II) erhielten wir durch Tempern inniger Gemenge von Na2O2 und GaAs (vor Verreiben: Na2O2: GaAs 4,1 : 1) in nicht ganz verschlossenen Ag-Zylindern (570°C, 6 Wochen). Die Strukturverfeinerung (Vierkreisdiffraktometerdaten, Mo-Kα, 588 von 616 Io(hkl); R = 4,54%, Rw = 4,06%) belegt die Raumgruppe Pna21; a = 549,8(1) pm, b = 720,6(1) pm, c = 529,8(1) pm, Z = 4 (Guinier-de Wolff-Daten). NaGaO2(II) ist eine Ordnungsvariante des Wurtzit-Typs.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19926110512
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