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  • 1
    Electronic Resource
    Electronic Resource
    About the Crystal Structure of CuNb(OH, F)"7 . 3H"2O
    Amsterdam : Elsevier
    Journal of Solid State Chemistry 108 (1994), S. 398-401 
    Details
    ISSN: 0022-4596
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1006/jssc.1994.1058
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  • 2
    Electronic Resource
    Electronic Resource
    Li"2NiF"4: Hydrothermal synthesis and crystal structure
    Amsterdam : Elsevier
    Journal of Solid State Chemistry 78 (1989), S. 184-186 
    Details
    ISSN: 0022-4596
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0022-4596(89)90143-6
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  • 3
    Electronic Resource
    Electronic Resource
    Ba"5Nb"3O"3F"1"8(HF"2): Synthesis and Crystal Structure
    Amsterdam : Elsevier
    Journal of Solid State Chemistry 107 (1993), S. 211-217 
    Details
    ISSN: 0022-4596
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1006/jssc.1993.1340
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  • 4
    Electronic Resource
    Electronic Resource
    Ba3V2O4F8: [V4(O,F)20]8- tetrameric groups of octahedra inserted a tridimensional network of (FBa4) tetrahedra (1993)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 1597-1602 
    Details
    ISSN: 0044-2313
    Keywords: Barium vanadium oxide fluorides ; crystal structures ; bond valence calculations ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Ba3V2O4F8: [V4(O,F)20]8- tetramere Gruppen von Oktaedern in einem dreidimensionalen Netz von (FBa4)-TetraedernBa3V2O4F8 wird durch hydrothermale synthese dargestellt und die Kristallstruktur aus Einkristalldaten bestimmt: Raumgruppe: Pnnm, Z = 4, a = 9,945(4), b = 10,277(1), c = 9,673(1) Å; R = 0,0331, Rw = 0,0315 für 892 unabhängige Reflexe und 86 freie Parameter. Die Struktur ist verwandt mit der von Ba3Al2F12 und kann durch isolierte, tetramere [V4(O,F)20]8--Gruppen von Oktaedern in einem dreidimensionalen Netz von (FBa4)-Tetraedern beschrieben werden. Die Anordnung der Sauerstoff- und Fluoratome wird mit Hilfe von Valenzband-Rechnungen diskutiert.
    Notes: Ba3V2O4F8 is prepared by hydrothermal synthesis. The crystal structure is established from single crystal X-ray diffraction data: Space group Pnnm, Z = 4, a = 9.945(4) Å, b = 10.277(1) Å and c = 9.673(1) Å R = 0.0331, Rw = 0.0315 for 892 independent reflections and 86 parameters. The structure is related to that Ba3Al2F12 and is described in terms of isolated [V4(O,F)20]8- tetrameric groups of octahedra inserted in a tridimensional network of (FBa4) tetrahedra. Location of oxygen and fluorine atoms is discussed with the help of bond valence calculations.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19936190915
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  • 5
    Electronic Resource
    Electronic Resource
    Crystal Structure of a New Acentric Oxide Fluoride of VIV: BaVOF4 (1994)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 309-312 
    Details
    ISSN: 0044-2313
    Keywords: Barium vanadium oxide fluoride ; synthesis ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Kristallstruktur eines neuen azentrischen Oxidfluorids des VIV: BaVOF4Die Struktur von BaVOF4, erhalten durch hydrothermale Synthese, wurde röntgendiffraktometrisch aus Einkristalldaten bestimmt: Raumgruppe Fdd2 (azentrisch), Z = 16, a = 7,920(1), b = 27,608(2), c = 7,375(1) Å mit R = 0,0262, Rw = 0,0273 für 1 508 unabhängige Reflexe und 64 Parameter. Das Gitter wird von cis-verknüpften VOF5-Oktaedern aus gewinkelten unendlichen Ketten entlang [101] und [101] gebildet, die über Barium-Kationen verbunden sind. Die Lage der O2- und F- wird mittels Valenzband-Rechnungen diskutiert. Wie für BaTiOF4 und einige Verbindungen aus der Reihe AIIMIIIF5 (A = Ba, Sr und M = Ga, Al, Mn) kann die Struktur durch quasi-hexagonal dichteste Ebenen aus Stapeln von Ba2+, O2-- und F--Ionen beschrieben werden.
    Notes: The structure of BaVOF4 has been determined by X-ray diffraction data from a single crystal obtained by hydrothermal synthesis: S.G. Fdd2 (acentric), Z = 16, a = 7.920(1), b = 27.608(2) and c = 7.375(1) Å with R = 0.0262 and Rw = 0.0273 for 1 508 independent reflections and 64 parameters. The network is built up from cis-linked VOF5 octahedra forming infinite kinked chains running along the [101] and [101] directions, connected by barium cations. The location of O2- and F- ions is discussed using bond valence calculations. As for BaTiOF4 and some compounds in the series AIIMIIIF5 (A = Ba, Sr and M = Ga, Al, Mn), the structure can be described in terms of a quasi hexagonal compact planes stacking of Ba2+, O2- and F- ions.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19946200216
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  • 6
    Electronic Resource
    Electronic Resource
    Synthesis and Crystal Structure of Ba4Mo2O5F7(HF2)3 · H2O (1997)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 623 (1997), S. 439-443 
    Details
    ISSN: 0044-2313
    Keywords: Barium ; molybdenum oxyfluoride ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthese und Kristallstruktur von Ba4Mo2O5F7(HF2)3 · H2OEinkristalle von Ba4Mo2O5F7(HF2)3 · H2O wurden durch hydrothermale Synthese erhalten. Die Röntgenstrukturbestimmung ergab: Raumgruppe Pnnm, Z = 4, a = 16,497(1), b = 8,6939(5), c = 11,5174(6) Å (R = 0,0295, Rw = 0,0354 für 2425 unabhängige Reflexe und 126 Parameter). Mo ist im MoO3F3 verzerrt oktaedrisch umgeben. Zwei Oktaeder bilden, übereck verbunden durch O2-, (Mo2O5F6)4--Einheiten entlang der c-Achse. Die Ba-Atome liegen in zwei unterschiedlichen Umgebungen vor: einem quasi dreifach bekappten Kubus für Ba1 und Ba3 und einem dreifach bekappten trigonalen Prisma für Ba2.
    Notes: Single crystals of Ba4Mo2O5F7(HF2)3 · H2O are grown by hydrothermal synthesis. The structure is determined from X-Ray diffraction data: space group Pnnm, Z = 4, a = 16.497(1) Å, b = 8.6939(5) Å, c = 11.5174(6) Å (R = 0.0295, Rw = 0.0354 for 2425 independent reflections and 126 adjustable parameters). Mo atoms are in a distorted octahedral environment MoO3F3; two octahedra are linked by one O2- corner forming (Mo2O5F6)4- units lying along the c axis. Ba atoms present two kinds of environment: a quasi tricapped cube for Ba1 and Ba3 and a tricapped tricapped trigonal prism for Ba2.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19976230170
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  • 7
    Electronic Resource
    Electronic Resource
    Ba7Fe6F32 · 2H2O: Original isolated trimers [Fe3F16]7- in a new defective jarlite-type compound (1995)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 621 (1995), S. 1025-1032 
    Details
    ISSN: 0044-2313
    Keywords: Barium iron fluoride ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Ba7Fe6F32 · 2H2O: isolierte [Fe3F16]7--Trimere in einer neuen Verbindung vom Defekt-Jarlit-TypBa7Fe6F32 · 2H2O wurde aus wäßriger HF-Lösung in einer Teflon-Bombe (Berghof) bei 180°C dargestellt. Ein teilweiser F-/OH--Austausch erfolgt in verdünnterem HF-Medium und führt zu Ba7Fe6F32-x(OH)x · 2H2O. Die Verbindungen kristallisieren im monoklinen System, Raumgruppe C2/m (Z = 2) mit a = 17,023(1) Å, b = 11,482(1) Å, c = 7,624(1) Å, β = 101,13(1)° für x = 0 und a = 17,036(2) Å, b = 11,489(1) Å, c = 7,620(2) Å, β = 101,48(1)° für x ≍ 5,3. Die Struktur wurde aus 2 256 bzw. 1 343 unabhängigen Reflexen für x = 0 bzw. x ≍ 5,3 mit einem Siemens AED2 Vierkreisdiffraktometer (MoKα) bestimmt; für x = 0: R = 0,0235, Rw = 0,0240; für x ≍ 5,3: R = 0,0324, Rw = 0,0335. Die eng mit dem Jarlit-Typ verwandte Struktur wird aus isolierten Oktaedertrimeren [Fe3F16]7- aufgebaut, die durch Ba2+-Ionen verknüpft werden. Die Lage der Anionen und Wassermoleküle wird mittels Valenzband-Rechnungen diskutiert. Magnetische-und Mössbauer-Untersuchungen werden diskutiert.
    Notes: Ba7Fe6F32 · 2H2O was prepared from HF aqueous solution in a teflon bomb (Berghof) at 180°C. A partial exchange F-/OH- can be realized in more diluted HF medium and leads to Ba7Fe6F32-x(OH)x · 2H2O. The compounds crystallize in the monoclinic system, space group C2/m (Z = 2) with a = 17.023(1) Å, b = 11.482(1) Å, c = 7.624(1) Å, β = 101.13(1)° for x = 0 and a = 17.036(2) Å, b = 11.489(1) Å, c = 7.620(2) Å, β = 101.48(1)° for x ≍ 5.3. The structures were determined from 2 256 and 1 343 independent reflections for x = 0 and x ≍ 5.3 respectively, collected with a Siemens AED2 four-circle diffractometer with the MoKα radiation (R = 0.0235 and Rw = 0.0240 for x = 0 and R = 0.0324 and Rw = 0.0335 for x ≍ 5.3). The structure, closely related to that of the Jarlite-type, is built up from isolated octahedra trimers [Fe3F16]7-, connected together by Ba2+-cations. The location of anions and water molecules is discussed from bond valence calculations. Magnetic and Mössbauer studies are reported and discussed.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19956210622
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  • 8
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    pH sensors with lithium lanthanum titanate sensitive material: applications in food industry (2003)
    Elsevier
    Details
    Publication Date: 2003-04-01
    Print ISSN: 0925-4005
    Electronic ISSN: 1873-3077
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Published by Elsevier
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  • 9
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    Crystal structure and thermolysis of K2(H5O2)Al2F9 (1992)
    Elsevier
    Details
    Publication Date: 1992-05-01
    Print ISSN: 0022-4596
    Electronic ISSN: 1095-726X
    Topics: Chemistry and Pharmacology
    Published by Elsevier
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  • 10
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    About the Crystal Structure of CuNb(OH, F)7 · 3H2O (1994)
    Elsevier
    Details
    Publication Date: 1994-02-01
    Print ISSN: 0022-4596
    Electronic ISSN: 1095-726X
    Topics: Chemistry and Pharmacology
    Published by Elsevier
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