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  • Copper  (5)
  • Wiley-Blackwell  (5)
  • American Chemical Society
  • Molecular Diversity Preservation International
  • 1
    Electronic Resource
    Electronic Resource
    Stabilization of Copper(III) Ions with Deprotonated Hydroxyiminoamide Ligands: Syntheses, Structures, and Electronic Properties of Copper(II) and Copper(III) Complexes (1999)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 1999 (1999), S. 163-172 
    Details
    ISSN: 1434-1948
    Keywords: Copper ; Deprotonated amide ligands ; Oxime ligands ; Redox chemistry ; High valent metal ions ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Copper(II) and copper(III) complexes were prepared with two novel ligands, N,N′-bis(2-(1-hydroxyimino-2-methyl-1-phenyl)propyl)dimethylmalondiamide (H4mal55) and N,N′ bis(-(1-hydroxyiminoethyl)phenyl)dimethylmalondiamide (H4mal66), both of which contain two amide and two oxime functionalities as potential ligand donor groups. The two copper(II) complexes (NEt4)[Cu(Hmal55)] (1) and (NEt4)[Cu(Hmal66)] (2) can be reversibly oxidized in acetonitrile at a redox potential of -0.120 and -0.075 V vs. the Fc/Fc+ redox couple, respectively. While the quantitative electrolysis of 1 results in the preparation of the oxidized complex [Cu(Hmal55)] (3), which is sufficiently stable to be isolated, isolation of the oxidation product of 2 was not attempted because of its long-term instability. The properties of the complexes were investigated by means of various spectroscopic methods (UV-vis, ESR, NMR, and IR spectroscopy) and by X-ray structure analysis. The structure determinations and the spectroscopic investigations of the complexes reveal a square-planar CuN4coordination environment for each complex in the solid state and in acetonitrile solution. In both the oxidized and reduced oxidation states of the complexes, the coordinated ligands remain triply deprotonated with a hydrogen atom bridging both oxime oxygen atoms. The ligands can therefore be regarded as pseudo-macrocyclic. The characterization of the oxidation products clearly identifies the electron-transfer reaction as being metal-centered. For the first time, the structure of a copper(III) complex with a ligand containing oximes as donor groups was determined. The redox potentials of the copper complexes are compared to related CuIII/CuII redox couples.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
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    Paper (German National Licenses)
  • 2
    Electronic Resource
    Electronic Resource
    Ein Beitrag zur Kristallstruktur von CuSmMo2O8 und CuGdMo2O8 (1992)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 617 (1992), S. 79-83 
    Details
    ISSN: 0044-2313
    Keywords: Copper ; Samarium ; Gadolinium ; Molybdenum ; Oxide ; structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: A Contribution on the Crystal Structure of CuSmMo2O8 and CuGdMo2O8Single crystals of (I) CuSmMo2O8 and (II) CuGdMo2O8 were prepared and investigated using an X-ray technique. Both compounds crystallize with orthorhombic symmetry, space group D2h15-Pbca with Z = 8. ((I): a = 10.302, b = 9.796, c = 14.697 Å; (II): a = 10.200, b = 9.779, c = 14.646 Å). The crystal structure and the classification into the already known Copper(I) Lanthanoidemolybdates are discussed.
    Notes: (I) CuSmMo2O8 und (II) CuGdMo2O8 wurden einkristallin dargestellt und röntgenographisch untersucht. Beide kristallisieren orthorhombisch, Raumgruppe D2h15-Pbca mit Z = 8. ((I): a = 10,302, b = 9,796, c = 14,697 Å; (II): a = 10,200, b = 9,779, c = 14,646 Å). Der Aufbau und die Einordnung in die bereits bekannten Kupfer(I)-Lanthanoidmolybdate werden diskutiert.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19926170112
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  • 3
    Electronic Resource
    Electronic Resource
    Zur Kristallstruktur von CuInMo2O8Professor Dietrich Mootz zum 60. Geburtstage gewidmet. (1993)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 1227-1230 
    Details
    ISSN: 0044-2313
    Keywords: Copper ; Indium ; Molybdenum ; Oxide ; Structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Crystal Structure of CuInMo2O8.Single crystals of CuInMo2O8 were prepared and investigated by X-ray work. It shows monoclinic symmetry, space group C62h - C2/c; a = 9.549 Å, b = 11.529 Å, c = 5.000 Å; β = 91.38(2)°, Z = 4. CuInMo2O8 represents a LiYbW2O8 related structure, characterised by zigzag-chains of MoO6-octahedrons and octahedrons around copper and indium. With respect to LiFeW2O8 the single and three-valent ions are in opposite distribution. There are strong evidence for molybdenum in lowered oxidation state.
    Notes: CuInMo2O8 wurde synthetisiert und Einkristalle röntgenographisch untersucht. Es kristallisiert monoklin, Raumgruppe C62h - C2/c, mit a = 9,549 Å, b = 11,529 Å, c = 5,000 Å; β = 91,38(2)°; Z = 4. CuInMo2O8 ist im Aufbau mit LiFeW2O8 eng verwandt. Beide sind durch Zickzack-Ketten aus MO6-Oktaedern (M=Mo, W) sowie Oktaedern von O2- um Kupfer und Indium charakterisiert. Im Hinblick auf LiFeW2O8 sind ein- und dreiwertige Ionen vertauscht. Es gibt Hinweise für Molybdän in erniedrigter Oxidationszahl.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19936190713
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  • 4
    Electronic Resource
    Electronic Resource
    Synthese und Struktur einer neuen Form von CuYMo2O8 (1992)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 609 (1992), S. 55-58 
    Details
    ISSN: 0044-2313
    Keywords: Copper ; yttrium ; molybdenum oxide ; structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Structure of a New form of CuYMo2O8Single crystals of a new form of CuYMo2O8 were prepared and investigated by X-ray diffractometer technique [space group D2h15-Pbca; a = 10.160 Å, b = 9.701 Å, c = 14.527 Å; Z = 8]. CuYMo2O8 represents a new structure type characterised by MoO4-tetrahedrons, Cu+ with coordination number 2 + 1 and square antiprisms around Y3+. The crystal structure and the Cu+ coordination are discussed.
    Notes: Einkristalle einer neuen Form von CuYMo2O8 wurden synthetisiert und mit Vierkreisdiffraktometertechnik röntgenographisch untersucht [Raumgruppe D2h15-Pbca; a = 10, 160 Å, b = 9,701 Å, c = 14, 527 Å Z = 8]. CuYMo2O8 repräsentiert einen neuen Stukturtyp mit isolierten MoO4-Tetraedern, dreifach koordiniertem Cu+ und quadratischen Antiprismen um Y3+. Die Kristallstruktur und die Koordination um Kupfer werden diskutiert.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19926090310
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  • 5
    Electronic Resource
    Electronic Resource
    Zur Kenntnis von Cu6La4Mo9O36 (1992)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 614 (1992), S. 35-37 
    Details
    ISSN: 0044-2313
    Keywords: Copper ; Lanthanum ; Molybdenum ; Oxide ; Structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: About Cu6La4Mo9O36Single crystals of Cu6La4Mo9O36 were prepared and investigated by X-ray work. It shows trigonal symmetry, space group R3c  -  C63v; a = 20.892, c = 12.754 Å; Z = 6. Cu6La4Mo9O36 represents a new structure type, characterized by MoO4-tetrahedrons and three times capped trigonal prisms around La3+. Cu+ shows coordination numbers 2 + 1 or 2 + 2.
    Notes: Einkristalle von Cu6La4Mo9O36 wurden synthetisiert und röntgenographisch untersucht. Es kristallisiert trigonal, Raumgruppe R3c  -  C63v; a = 20,892, c = 12,754 Å; Z = 6. Cu6La4Mo9O36 repräsentiert einen neuen Strukturtyp mit isolierten MoO4-Tetraedern und dreifach überkappten trigonalen Prismen um La3+. Cu+ zeigt eine 2 + 1 bzw. 2 + 2 Koordination.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19926140808
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