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  • 1
    Electronic Resource
    Electronic Resource
    Synthesis, characterization, and some reactions of (dimethyl sulfoxide)pentaammine cobalt(III) salts (1973)
    s.l. : American Chemical Society
    Inorganic chemistry 12 (1973), S. 7-11 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic50119a003
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  • 2
    Electronic Resource
    Electronic Resource
    Thermodynamic study of poly(4-hydroxystyrene)/poly(vinyl acetate) blends by inverse gas chromatography (1992)
    s.l. : American Chemical Society
    Macromolecules 25 (1992), S. 6849-6854 
    Details
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ma00051a020
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  • 3
    Electronic Resource
    Electronic Resource
    Stage-Dependent Uptake of Cadmium by Bufo arenarum Embryos (1996)
    Springer
    Bulletin of environmental contamination and toxicology 56 (1996), S. 663 -669 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001289900097
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  • 4
    Electronic Resource
    Electronic Resource
    Teratogenic effects of cadmium onBufo arenarum during gastrulation (1986)
    Springer
    Cellular and molecular life sciences 42 (1986), S. 1174-1176 
    Details
    ISSN: 1420-9071
    Keywords: Teratogenesis ; cadmium ; temperature dependence ; amphibian ; gastrulae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary DevelopingBufo arenarum embryos were treated during gastrulation with cadmium chloride in concentrations ranging from 6×10−7 to 1.5×10−5 M Cd++ at 20 and 30°C. Initial failures at gastrulation result mainly in axial incurvations, microcephaly, hydropsy and abnormal tail formation. The higher temperature has a dual effect: at high concentrations of Cd early malformations are significantly increased, whereas at low concentrations the higher temperature prevents alterations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01941299
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  • 5
    Electronic Resource
    Electronic Resource
    Economically Important Leatherjackets of Grassland and Cereals: Biology, Impact and Control (1999)
    Springer
    Integrated pest management reviews 4 (1999), S. 145-162 
    Details
    ISSN: 1572-9745
    Keywords: leatherjackets ; Tipulidae ; Tipula paludosa ; Tipula oleracea ; grass ; cereals ; pest management
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Despite the large number of cranefly species only two have been convincingly associated with crop damage. The larvae of Tipula paludosa are commonly found as pests in both grassland and spring cereals whereas those of T. oleracea are only established as pests of winter cereals following crops of oilseed rape in the rotation. The latter, however, is probably the species involved in opportunistic situations involving various minor crops. These epidemiological contrasts are attributable to differences in the morphology and behaviour of the adults of the two species in relation to crop rotations. Larvae are sufficiently similar as to cause confusion in identification and this has hampered development of a clear picture of the ecology of the two species. Little is known about the distribution of T. oleracea larvae but T. paludosa larvae are largely regulated by climatic factors, especially rainfall, although the operation of these varies across the distribution range. Many natural enemies have been identified but a commercially viable control method using them has not yet been developed for either species. Control of T. paludosa is relatively easy using broad-spectrum insecticides but inconsistent kills have been observed with winter pesticide applications against T. oleracea. Determination of those fields requiring applications in advance of the damage remains the major problem, especially in grassland and winter cereals, to be resolved for the management of leatherjacket pests.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009625724013
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  • 6
    Electronic Resource
    Electronic Resource
    Formation and transformation of Amminecarbonatocobalt(III) Complexes (1985)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 529 (1985), S. 235-240 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Bildung und Umwandlung von Ammincarbonatocobalt(III)-Komplexen.Die Darstellung von [CoCO3(NH3)5]ClO4 · H2O, trans-[CoCO3(NH3)4(15NH3)]ClO4 und trans-[CoCO3(NH3)4(NH2CH3)]ClO4 wird beschrieben. Die Umwandlungsreaktionen dieser Komplexe, in denen ein Chelat-Carbonat-Ligand gebildet und ein NH3 abgespalten wird, wurden in Lösung und im festen Zustand untersucht. Die Identifizierung der Verbindungen erfolgte mittels 1H-NMR-Spektroskopie. Es wird gezeigt, daß die Umwandlungs-reaktionen nicht stereospezifisch sind.
    Notes: The preparation is described of [CoCO3(NH3)5]ClO4 · H2O, trans-[CoCO3(NH3)4(15NH3)]ClO4, and trans-[CoCO3(NH3)4(NH2CH3)]ClO4. The transformation reactions of these complexes, in which a chelate carbonate ligand is formed and one NH3 is eliminated, were studied in solution and in the solid state. 1H NMR spectroscopy is used for the identification of the products. It is shown that the transformation reactions are not stereospecific.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19855291030
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  • 7
    Electronic Resource
    Electronic Resource
    Synthesis, characterization and some reactions of trans-[Co(NH3)4(CH3NH2)Br]2+ and trans-[Co(NH3)4(CH3NH2)(NO3)]2+ complexes (1990)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 590 (1990), S. 222-228 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthese, Charakterisierung und einige Reaktionen der trans-[Co(NH)3)4(CH3NH2)Br]2+- und trans-[Co(NH3)4(CH3NH2)NO3]2+-KomplexeDie Darstellung der trans- [Co(NH3)4(CH3NH2)Br]2+- und trans- [Co(NH3)4.(CH3NH2)(NO3]2+wird beschrieben. Die UV-VIS-Spektren der Komplexe zeigen ein Absinken der Ligandenfeldstärke im Vergleich zu den Pentamminkomplexen. Die IR-Spektren entsprechen denen der Pentammine. Die katalysierte (durch Hg2+) Wasseraufnahme des trans-Biommethylamin-Komplexes erfolgt unter Erhaltung der stereochemischen Konfiguration. Die Produkte der basischen Hydrolyse (bei 25°C) zeigen trans→cis-Umwandlung für beide Komplexe. Die 1H-NMR-Spektroskopie wird zur stereochemischen Identifizierung der Verbindungen angewandt.
    Notes: The preparation of trans-[Co(NH3)4(CH3NH2)Br]2+ and trans-[Co(NH3)4(CH3NH2)-(NO3)]2+ complexes is described. The UV-VIS spectra of the complexes indicate a decrease of the ligand field compared to the parent pentaammines. Infrared spectra match with the pattern of the corresponding pentaammines. The catalyzed (by Hg2+) aquation of the trans-bromomethylamine complex go under retention of the stereochemical configuration. The base hydrolysis (studied at 25°C) products show trans to cis rearrangement for both complexes. 1H NMR spectroscopy is used for identification of the stereochemical configuration of the compounds.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19905900122
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  • 8
    Electronic Resource
    Electronic Resource
    Zur Kinetik der Aquation von Dimethylsulfoxid-pentaamminkobalt(III)-triperchlorat-dihydrat [Co(NH3)5DMSO](ClO4)3 · 2H2O (1975)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 412 (1975), S. 59-64 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Kinetics of the Aquation [Co(NH3)5DMSO](ClO4)3 · 2 H2OThe aquation rate constants of (dimethylsulfoxide)pentaamminecobalt(III)perchlorate in aqueous perchloric acid media has been determined spectrophotometrically under various conditions of acidity and complex concentrations at 25-50°C. The reaction proceeds by an first-order rate law presumably with D-mechanism, and is independently of the acidity. The values for the activation enthalpy and entropy has been calculated: ΔH≠ = 24,7 kcal mol-1; ΔS≠ = 4,5 cal K-1 mol-1.
    Notes: Die Geschwindigkeitskonstanten kaq für die Aquation von Dimethyl-sulfoxid-pentaammin-kobalt(III)-triperchlorat-dihydrat in perchlorsaurem Medium werden spektralphotometrische bei unterschiedlichen Wasserstoffionen- und Komplexkonzentrationen im Temperaturbereich zwischen 25 und 50°C bestimmt. Die Reaktion verläuft nach einem Zeitgesetz 1. Ordnung, vermutlich nach einem D-Mechanismus, und ist im gewählten Bereich unabhängig von der Wasserstoffionenkonzentration. Die Werte für die Aktivierungsenthalpie und Entropie wurden berechnet: ΔH≠ = 24,7 kcal mol-1; ΔS≠ = +4,5 cal K-1 mol-1.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19754120108
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  • 9
    Electronic Resource
    Electronic Resource
    On the Synthesis of cis-Tetramminecobalt(III) Complexes (1984)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 513 (1984), S. 208-212 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Darstellung von cis-Tetrammincobalt(III)-KomplexenDie Darstellung der cis-Tetramminbis(dimethylformamid)cobalt(III)- und cis-Tetramminbis(trifluormethansulfonat)cobalt(III)-Komplexe wird beschrieben. Die Verbindungen werden als Ausgangsmaterialien für die Herstellung von anderen Tetrammin-Verbindungen unter sucht, die durch Substitutionsreaktionen, basierend auf der Reaktivität der Liganden, gebildet werden.
    Notes: The preparation is described of cis-tetramminebis(dimethylformamide)cobalt(III) and cis-tetramminebis(trifluoromethanesulfonato)cobalt(III) complexes. The compounds were studied as starting materials for the synthesis of other tetrammine compounds formed by substitution processes which are based on the reactivity of the ligands.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19845130624
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  • 10
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    Atomistic modelling and high resolution electron microscopy simulations of CeO2nanoparticles (2017)
    American Institute of Physics
    Details
    Publication Date: 2017-11-27
    Print ISSN: 0003-6951
    Electronic ISSN: 1077-3118
    Topics: Physics
    Published by American Institute of Physics
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