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  • 1
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 60 (1989), S. 1200-1201 
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: We report on a new coarse tip distance adjustment and positioner for a scanning tunneling microscope, which was designed with ease of sample manipulation and UHV compatibility in mind. It has no mechanical connections in UHV and has been successfully used for measurements of microfaceted platinum surfaces in air and cleaved Si(111) surfaces under liquids.
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Solar physics 8 (1969), S. 348-368 
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Soft solar X-rays (8 ⩽ gl ⩽ 12 Å) were observed from OSO-III. An analysis of the X-ray enhancements associated with 165 solar flares revealed that there is a tendency for a weak soft X-ray enhancement to precede the cm-λ burst and Hα flare. The peak soft X-ray flux follows the cm-λ peak by about 4 min, on the average. Additionally, it was found that flare-rich active centers tend to produce flares which are stronger X-ray and cm-λ emitters than are flares which take place in flare-poor active centers.
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 216 (1966), S. 285-286 
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Solar X-rays from 8–12 Å have been observed with an ion chamber photometer and fluxes derived from the observations after an assumption concerning the spectral distribution. The time variation of the X-ray flux correlates well with the radio flux, plage index, and sunspot number. Comparisons of X-ray and optical events are given; flares seem to produce soft X-rays, but some soft X-ray bursts are apparently not associated with flares. The total energy involved in the soft X-ray bursts may be a significant amount of the total flare radiation.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 41 (1969), S. 599-600 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 370 (1969), S. 134-143 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The hitherto unknown CaCu2O3 was prepared and the structure determined by investigation of single crystal X-ray patterns: Orthorhombic symmetry, space group D2h13-Pmmn eith a = 9.85, b = 4.11 and c = 3.47 Å. Ca2+ has a distorted octahedral neighbourhood, the Cu2+ ion is surrounded by a square of four oxygens. The Cu/O network and its connexion with the Ca/O oktahedrons is discussed.
    Notes: Neu dargestellt wurde CaCu2O3. Die röntgenographische Untersuchung mit Einkristalldaten ergab orthorhombische Symmetrie, Raumgruppe D2h13-Pmmn mit a = 9,85, b = 4,11 und c = 3,47 Å. CaCu2O3 besitzt symmetrisch verzerrte Sauerstoffoktaeder um Ca2+ und fast quadratische Konfigurationen von O2- um Cu2+. Die Verknüpfung zwischen den in Richtung [100] deutlich gefalteten, längs [010] und [100] unendlich ausgedehnten Cu/O-Ebenen mit den Ca/O-Oktaedern wird eingehend diskutiert.
    Additional Material: 8 Ill.
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 522 (1985), S. 122-130 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Crystal Structure of Ba3CdSn2S8 Including a Notation about Ba6CdAg2Sn4S16Ba3CdSn2S8 (A) and Ba6CdAg2Sn4S16 (B) were prepared for the first time and the crystal structure was determined using single crystal data of (A). (A) and (B) are isotypic. Space group and lattice constants see “Inhaltsübersicht”. The crystal structure is described and discussed.
    Notes: Die Sulfide Ba3CdSn2S8(A) und Ba6CdAg2Sn4S16(B) wurden erstmals dargestellt und die Kristallstruktur mit Einkristalldaten von (A) bestimmt. (A) und (B) sind isotyp und kristallisieren in der Raumgruppe I43d-Td6 (Nr. 220) mit a = 14,7235 ± 0,0007 (Z = 8) für (A) und a = 14,7253 ± 0,0007 Å (Z = 4) für (B). Der Aufbau der Kristallstruktur wird beschrieben und diskutiert.
    Additional Material: 3 Ill.
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 531 (1985), S. 52-60 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On Oxidesulfides of Åkermanitetype-Structure CaLaGa3S6O, SrLaGa3S6O, La2ZnGa2S6O, and Sr2ZnGe2S6OThe oxide sulfides were prepared for the first time (space group and lattice constants see “Inhaltsübersicht”). The atomic positions were refined from single crystal X-ray data for CaLaGa3S6O and La2ZnGa2S6O. Problems concerning the metal distribution on the crystallographic positions are discussed by comparing interatomic distances. The ratio c/a of the new compounds is compared with that of isotypic compounds from literature.
    Notes: Die Oxidsulfide A  -  CaLaGa3S6O a = 9,2706(8), c = 6,0351(9) Å; B  -  SrLaGa3S6O a = 9,347(10), c = 6,0893(10) Å; C  -  La2ZnGa2S6O a = 9,3653(15), c = 6,0928(10) Å und D  -  Sr2ZnGe2S6O a = 9,4054(7), c = 6,1718(7) Å wurden erstmals präpariert. Für A und C wurden die Lageparameter mit Einkristalldaten verfeinert. Raumgruppe D2d3 - P421m, Nr. 113. Probleme der Punktlagenbesetzung werden über Abstandsvergleiche diskutiert. Die neuen Stoffe werden bezüglich der c/a-Verhältnisse mit Literaturdaten isotyper Verbindungen verglichen.
    Additional Material: 3 Ill.
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 527 (1985), S. 45-61 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Phthalocyanines of Lithium: Preparation and Characterization of the Monoclinic and Tetragonal Modifications of LiPe(1-) and the Halogene Adducts LiPc (1-)X (X = Cl, Br, I)The preparation of dilithium phthalocyanine (LiPC2Pc(2-)), tetraalkylammonium lithium phthalocyanines ((TAA)LiPc(2-)), monolithium phthalocyanine hydrate (LiPc(1-)·H2O), monolithium phthalocyanine (monoclinic and tetragonal modification (m-LiPc(1-), t-LiPc(1-))) and of the halogene adducts with t-LiPc(1-) of the type LiPc(1-)X with X = Cl, Br, I is reported. The UV-VIS, infrared, and resonance raman spectra, the X-ray powder diffractograms, and the measurements of the magnetic susceptibilities and the specific electrical conductivity of the different stable lithium phthalocyanine π-cation radicals are discussed.
    Notes: Die Darstellung von Dilithiumphthalocyanin (Li2Pc(2-)), Tetraalkylammoniumlithiumphthalocyaninen ((TAA)LiPc(2-)), Monolithiumphthalocyaninhydrat (LiPc(1-)·H2O), Monolithiumphthalocyanin (monokline und tetragonale Modifikation (m-LiPc(1-), t-LiPc(1-))) und von Halogenaddukten an t-LiPc(1-) vom Typ LiPc(1-)X mit X = Cl, Br, I wird beschrieben. Die UV-VIS-, IR- und Resonanz-Raman-Spektren sowie die Röntgenpulverdiffraktogramme und die Messungen der magnetischen Suszeptibilität und der spezifischen elektrischen Leitfähigkeit der verschiedenen stabilen Lithiumphthalocyanin-π-Kation-Radikale werden diskutiert.
    Additional Material: 6 Ill.
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 336 (1965), S. 197-199 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: MnO2 reacts at about 470°C in inert atmosphere with molten KOH yielding by disproportionation K3MnO4 and KMnO2. The latter is obtained in almost pure state from the reaction of MnOOH with KOH at analogous conditions. MnO does not react.
    Notes: MnO2 reagiert in einer KOH-Schmelze bei ∼470° in Inertgasatmosphäre unter weitgehender Dispropotionierung zu K3MnO4 und KMnO4. Letzteres entsteht praktisch ausschließlich bei sonst gleichen Bedingungen aus MnOOH. MnO wird nicht verändert.
    Additional Material: 1 Ill.
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