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  • 1
    Electronic Resource
    Electronic Resource
    Complexes of metallons with phosphorus or arsenic containing ligands. II. complexes ortho-carboxyphenyltertiaryarsines with mercury (II) halides (1970)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 373 (1970), S. 64-68 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Ortho-carboxyphenyldimethylarsin(CPDMA). o-Carboxphenyldiphenylarsin (CPDPA) und o-Carboxyphenyl-di(p-toly)-arsin (CPDTA) reagieren mit Quecksilber(II)-halogeniden zu Komplexen HgX2L mit X = Cl, Br, J; L = Ligand. Nach IR-Spektren enthält HgCl2 · CPDPA wahrscheinlich den Liganden als zweizähnige Gruppe in einer dimeren halogen-verbrückten Struktur, während der jeweilige Ligand in den anderen acht dargestellten Komplexen einzähnig wirkt. Allen neun Komplexen wird tetraedrisch koordiniertes HgII zugeschrieben.
    Notes: Ortho-carboxyphenyl-dimethylarsine (CPDMA), ortho-carboxpyhenyldiphenylarsine (CPDPA) and ortho-carboxyphenyldi(p-tolyl)arsine (CPDTA) react with mercury(II) halides to yield complexes having the formula HgX2L where X is Cl, Br or I and L is ligand. In view of infrared spectral data these complexes have been classified into two classes: (a) those in which the carboxyl group of the ligand remains free (ligand being monodentate), and (b) those in which the ligand acts as a bidentate group. The complex Hg(Cl2) · CPDPA is the only example of type (a) and has been assigned a dimeric halogen bridged structure. The remaining eight complexes are assumed to be monomeric. A tetrahedral structure is proposed for all the nine complexes.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19703730110
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  • 2
    Electronic Resource
    Electronic Resource
    Complexes of metal ions with phosphorus or arsenic containing ligands. I. Complexes of Orthocarboxyphenyl Tertiary Arsines with zinc(II) and cadmium(II) (1968)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 363 (1968), S. 207-212 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Es wurden Zn- und Cd-Komplexe mit den Liganden o-Carboxyphenyl-dimethylarsin, o-Carboxyphenyl-diphenylarsin und o-Carboxyphenyl-di(p-tolyl)-arsin dargestellt. Cd ergibt mit allen drei Liganden polymere, offenbar oktaedrische Komplexe der allgemeinen Zusammensetzung M(OOC·C6H4·AsR2)2, während dies beim Zink nur bei den beiden beiden letzteren Liganden der Fall ist. Mit dem Dimethylarsin bildet Zink einen Komplex Zn(OOC·C6H4)·AsMe2·Me2As·C6 H4COOH mit Fünferkoordination.
    Notes: The complexes of zinc(II) and cadmium(II) have been prepared with the ligands o-carboxyphenyldimethylarsine, o-carboxyphenyldiphenylarsine and o-carboxyphenyldi(p-tolyl) arsine. The complexes of cadmium(II) with all the ligands and that of zinc(II) with the latter two have been assigned the general formula M(OOC·C6H4·AsR2)2 and appear to be octahedral due to their polymeric nature. Zinc(II) forms complex, Zn(OOC·C6H4·AsMe2)2·Me2 As·C6H4COOH, with the first ligand which is pentacoordinated.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19683630315
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  • 3
    Electronic Resource
    Electronic Resource
    On some Oxozirconium(IV) Compounds (1976)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 423 (1976), S. 91-96 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Über einige Zirkonium (IV)-oxid-VerbindungenEinige neue Zirlconium(IV)-oxid-Komplexe, ZrO(An)2, ZrO(Gly)2, ZrO(HSal)2, ZrO(HPth)2, ZrO(Pic)2(HPic)2 und ZrO(Quin)2(HQuin)2 wurden dargestellt durch Reaktion von ZrO(CH3C00)2CH3COOH mit Anthranilsäure (HAn), Glycin (HGly), Salicylsäure (H2Sal), Phthalsäure (H2Pth), Picolinsänre (HPic) und 8-Oxychinolin (HQuin). Ihre wichtigsten IR-Banden und, soweit möglich, molaren Leitfähigkeiten und Molekulargewichte werden mitgeteilt.
    Notes: Some new oxozirconium(IV) complexes: ZrO(An)2, ZrO(Gly)2, ZrO(HSal)2, ZrO(HPth)2, ZrO(Pic)2(HPic)2, and ZrO(Quin)2(H Quin)2 have been isolated from the reactions of ZrO(CH3COO)2CH3COOH with anthranilic acid (HAn), glycine (HGly), salicylic acid (H2Sal), phthalic acid (H2Pth), picolinic acid (HPic), and 8-quinolinol (HQuin) respectively. Their important infrared bands and wherever possible molar conductance and molecular weight have been reported.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19764230113
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  • 4
    Electronic Resource
    Electronic Resource
    Reaction of Hexachlorocyclotriphosphazene with Sodium p-Cresoxide (1984)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 513 (1984), S. 231-240 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reaktion des Hexachlorcyclotriphosphazens mit Natrium-p-cresolatDie Reaktion des Hexachlorcyclotriphosphazens (N3P3Cl6) mit Natrium-p-cresolat erfolgt vorwiegend auf nicht-genialem Wege. Die Anwesenheit von geminalen Isomeren bei der zweiten und dritten Substitutionsstufe in geringen Mengen (〈 5%) wurde ebenfalls beobachtet. Alle Chlor(p-cresol)-cyclotriphosphazene und ihre Dimethylamin-Derivate wurden durch 1H-, 13C{1H}- und 31P{1H}-NMR-Spektroskopie charakterisiert. Die Reaktion des N3P3Cl6 mit Natriumphenolat wurde erneut untersucht. Die relativen Ausbeuten der Produkte bei den verschiedenen Substitutionsstufen und ihre Isomerenzusammensetzung sind für die Phenolat- und Cresolat-Reaktion gleich. Mögliche Mechanismen zur Erklärung der Isomerenzusammensetzung werden diskutiert. Eine “through-space”-Wechselwirkung unter Einbeziehung der 2p-Sauerstoff- und 3d-Phosphor-Orbitale wird zur Erklärung der größeren Ausbeute an cis-Isomeren von N3P3Cl4(OAr)2 gegenüber seinem trans-Isomeren herangezogen.
    Notes: The reaction of hexachlorocyclotriphosphazene (N3P3Cl6) with sodium p-cresoxide proceeds by a predominantly nongeminal pathway. The presence of geminal isomers at the bis- and tris-stages of substitution in tiny quantities (〈 5%) has also been observed. All the chloro(p-cresoxy)cyclotriphosphazenes and their dimethylamino derivatives have been characterized by 1H-, 13C{1H}-, and 31P{1H}-NMR spectroscopy. The reaction of N3P3Cl6 with sodium phenoxide has been reinvestigated. The relative yields of the products at various stages of substitution and their isomeric compositions are almost the same for both phenoxy and p-cresoxy systems. Possible mechanisms to explain the observed isomeric compositions are discussed. A “through-space” interaction involving oxygen-2p and phosphorus-3d orbitals is invoked to explain the greater yield of the cis isomer of N3P3Cl4(OAr)2 than that of its trans isomer.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19845130627
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  • 5
    Electronic Resource
    Electronic Resource
    Photoelectron Spectra of geminal Vinyl- and Ethynyl-Disubstituted Cyclopropane Derivatives (1991)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 124 (1991), S. 371-376 
    Details
    ISSN: 0009-2940
    Keywords: Cyclopropane conjugation ; Calculations, ab initio, MNDO ; Vinylcyclopropane ; Ethynylcyclopropane ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The He(I) photoelectron (PE) spectra of 1,1-divinylcyclopropane (1), (Z,E)- and (Z,Z)-1,1-di-1-propenylcyclopropane (2 and 3), 1,1-diethynylcyclopropane (4), 1-ethynyl-1-propynylcyclopropane (5), 1-ethynyl-1-vinylcyclopropane (6), and (Z)-1-(1-propenyl)-1-(propynyl)cyclopropane (7) have been recorded. The interpretation of the first bands of the PE spectra is based on the comparison with related compounds and on the results of MO calculations. For the calculations on 1 - 7 the MNDO method, and in case of 1, 4, and 6 an ab-initio procedure with a 3-21 G basis has been applied. The investigations show that 1, 2, 6, and 7 prefer the bisected conformation while in 3 the propenyl groups are strongly twisted. Our studies reveal also that the three-membered ring shows relais properties and interacts strongly with both π systems.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19911240220
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  • 6
    Electronic Resource
    Electronic Resource
    O-Phenanthroline Complexes of rare-earth perchlorates (1966)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 348 (1966), S. 309-312 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Es wurden o-Phenanthrolinkomplexe des Typs [M(o-Phen)4](ClO4)3 mit M = La, Ce, Pr und Nd dargestellt. Ihre IR-Spektren werden diskutiert.
    Notes: O-Phenanthroline complexes of four rare-earth perchlorates of the formula M(O-phen)4(ClO4)3 where M = La, Ce, Pr or Nd have been prepared and their infrared spectra discussed.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19663480512
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  • 7
    Electronic Resource
    Electronic Resource
    Cobaltchelate als Hydrierkatalysatoren. III. Die Hydridbildung des [Co(dpnH)]+-Komplexes in Gegenwart von Pyridin als axialer Base (1987)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 549 (1987), S. 160-170 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Cobalt Chelates as Hydrogenation Catalysts. III. Hydride Formation of the [Co(dpnH)]+ Catalyst in the Presence of Pyridine as Axial BaseThe rate of the hydrogen uptake for [Co(dpnH)]+ is 2nd order with respect to the complex concentration and depends on the amount of added pyridine, in accord with the assumption of a more active mono- and an inactive bis-pyridine adduct. The rate law, formulated on this basis agrees very well with the measured data. The ΔH≠ - and ΔRH°-values, calculated from the temperature dependence of the rate constants and equilibrium constants are in agreement with the suggested model, whereas the ΔS≠ and ΔRS° values do not correspond completely with these expectations.
    Notes: Die Geschwindigkeit der Wasserstoffaufnahme des [Co(dpnH)]+-Komplexes ist 2. Ordnung bezüglich der Komplexkonzentration und abhängig von der Menge an zugesetztem Pyridin, in Übereinstimmung mit der Annahme eines aktiveren Mono- und eines inaktiven Bis-Pyridinaddukts. Das auf dieser Basis formulierte Geschwindigkeitsgesetz steht in sehr guter Übereinstimmung mit den Meßwerten. Die aus der Temperaturabhängigkeit der Geschwindigkeits- bzw. Gleichgewichtskonstanten berechneten ΔH≠- und ΔRH°-Werte stimmen mit dem angenommenen kinetischen Modell überein, während die ΔS≠- und ΔRS°-Werte diesen Erwartungen nicht ganz entsprechen.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19875490616
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  • 8
    Electronic Resource
    Electronic Resource
    Preparation and crystal structure of the La2Ni12P5 and isotypic ternary lanthanoid - Nickel phosphides (1993)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 587-592 
    Details
    ISSN: 0044-2313
    Keywords: Lanthanoid-nickel phosphides ; preparation ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Darstellung und Kristallstruktur von La2Ni12P5 und isotypen ternären Lanthanoid-Nickel-PhosphidenDas neue ternäre Phosphid La2Ni12P5 wurde durch Aufschmelzen reiner Komponenten in einem Lichtbogenofen synthetisiert und seine Kristallstruktur durch Einkristalldaten belegt. La2Ni12P5 ist ein erster Vertreter eines neuen Strukturtyps: Raumgruppe P21/m, a = 10,911(3), b = 3,696(2), c = 13,174(4) Å, β = 108,02(2)°, V = 505,2(6) Å3, Z = 2. Die Lageparameter wurden “anisotrop” aus 1 284 Io(hkl) zu RF = 0,0278, RW = 0,0287 (I 〉 3s̰I; 116 Parameter) verfeinert. Charakteristisch für den Aufbau ist die trigonal-prismatische Koordination der Phosphoratome. Die isotypen Phosphide Ln2Ni12P5 (Ln = Ce, Pr, Nd und Eu) wurden ebenfalls dargestellt und durch Pulverdaten charakterisiert.
    Notes: The new ternary phosphide La2Ni12P5 has been prepared by direct arc melting of the components as pure metals and red phosphorus. The crystal structure has been determined using X-ray single crystal diffraction data. The compound exhibits a new type of crystal structure, P21/m with lattice parameters a = 10.911(3), b = 3.696(2), c = 13.174(4) Å, β = 108.02(2)°, V = 505,2(6) Å3, Z = 2. Atomic parameters least squares refinement of 116 independent variables (anisotropic approximation for thermal vibrations) employed 1 284 independent Io(hkl); RF = 0.0278 and RW = 0.0287. The crystal structure is characterized by trigonal prismatic arrangement of phosphorus atoms stacking variant of infinite (with phosphorus centered) columns built by metal trigonal prisms ‖ [010]. Two or three such columns are connected through common edges (lanthanum atoms). The compounds RE2Ni12P5 (where RE = Ce, Pr, Nd and Eu) display the same with La2Ni12P5 crystal structure. Lattice parameters of these compounds have been refined using powder diffraction data.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19936190326
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  • 9
    Electronic Resource
    Electronic Resource
    Über das sek. 4-Methyl-α-nitro-camphen und das 4-Methyl-α-camphenon (1936)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 69 (1936), S. 1789-1791 
    Details
    ISSN: 0365-9631
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19360690738
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  • 10
    Electronic Resource
    Electronic Resource
    Kobalt-Zinnlegierungen (1908)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 59 (1908), S. 364-370 
    Details
    ISSN: 0863-1778
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19080590133
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