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  • Wiley-Blackwell  (68)
  • American Physical Society  (31)
  • American Institute of Physics  (23)
  • 1975-1979  (88)
  • 1950-1954  (14)
  • 1925-1929  (20)
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Year
  • 1
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    Phonon dispersion in liquid He ii (1975)
    American Physical Society
    Details
    Publication Date: 1975-11-01
    Print ISSN: 0556-2805
    Topics: Physics
    Published by American Physical Society
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    PAPER CURRENT
  • 2
    Electronic Resource
    Electronic Resource
    Reaktionen an der α-Methylengruppe von (Glycinato)platin(II)-Chelat-Komplexen (1976)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 109 (1976), S. 965-969 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions of the α-Methylene Group in (Glycinato)platinum(II) Chelate ComplexesThe reaction of the glycinato complex (n-Bu3P)Pt(Cl)NH2CH2CO2) (1)with aldehydes or alkylating agents (dimethyl sulfate, benzyl chloride) affords the chelate compounds 3-6 with substituted α-amino acids.
    Notes: Der Glycinato-Komplex (n-Bu3P)Pt(Cl)NH2CH2CO2) (1) setzt sich mit Aldehyden oder Alkylierungsmitteln (Dimethylsulfat, Benzylchlorid) zu entsprechenden Chelat-Verbindungen 3-6 mit Höheren α-Aminosäuren um.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19761090317
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  • 3
    Electronic Resource
    Electronic Resource
    Neue Übergangsmetallkomplexe mit Nuclein-Basen und Nucleosiden (1976)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 109 (1976), S. 970-993 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: New Transition Metal Complexes with Nucleic Acid bases and NucleosidesThe isolation of carbonylmetal complexes W(CO)5L (1), [W(CO)5L]- (2), [Mo(CO)3enL]- (3), (π-CH3C5H4)Mn(CO)2L (4), Rh(CO)2(CI)L (5), (H)(CO)(PPh3)2L2 (6), M(CO)(PPh3)2L (M = Rh, Ir) (7,8) and of phosphine and amine containing monomeric and polynuclear palladium(II) and platinum(II) complexes (9-14 with various neutral and anionic nucleic acid bases and nucleosides L is reported. Using i. r. and 1H n. m. r. data a tentative assignment of the coordination sites of the ambidentate ligands is given. The reaction of 1,3,7,9-tetramethylxanthinium perchlorate with Hg11 acetate affords the C-8 mercurated complex 15.
    Notes: Die Darstellung von Carbonylmetallkomplexen W(CO)5L (1), [W(CO)5L]- (2), [Mo(CO)3enL] (3)-, (π-CH3C5H4)Mn(CO)2L (4), Rh(CO)2(Cl)L (5), Ir(H)(CO)(PPh3)2L2 (6), M(CO)(PPh3)2L (M = Rh, Ir) (7,8) und von phosphin- und amin-haltigen monomeren sowie mehrkernigen Palladium(II)-und Platin(II)-und Platin (II)-Komplexen (9-14) mit einer Reihe von neutralen und anionischen Purin und Pyrimidin-Basen und Nucleosiden L wird beschrieben. Mit Hilfe von IR- und 1H-NMR- Daten wird versucht, die Koordinationsstellen der ambidenten Nucleinbasen zu bestimmen. 1,3,7,9-Tetramethylxanthinium-perchlorat wird mit Quecksilber (II)-acetat am C-8 metalliert (15).
    Additional Material: 6 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19761090318
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  • 4
    Electronic Resource
    Electronic Resource
    Mono- und Bis(phenyltelluro)methyllithium (1975)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 108 (1975), S. 314-321 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Mono- and Bis(pheyltelluro)methyllithiumSolutions of the title compounds are readily prepared from bis(phenyltelluro)methane (7): the monosubstituted one by transmetallative C6H5Te/Li-exchange with alkyllithium, the disubstituted one by direct metalation with lithium diisopropylamide. This was proved in both cases by deuterolysis and derivatization with electrophiles. The new tellurium derivatives are compared with the sulfur and selenium analogues.
    Notes: Lösungen der Titelverbindungen lassen sich aus Bis(phenyltelluro)methan (7) leicht darstellen, das monosubstituierte Li-Derivat durch C6H5Te/Li-Austausch mit Alkyllithium, das disubstituierte durch direkte Metallierung mit Lithium-diisopropylamid. In beiden Fällen wurde dies durch Deuterolyse und Umsetzung mit Elektrophilen bewiesen. Die neuen Tellurderivate werden mit den Schwefel- und Selen-Isologen verglichen.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19751080139
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  • 5
    Electronic Resource
    Electronic Resource
    Übergangsmetall-Carbin-Komplexe, XV. Phenylcarbin sowie Methoxyphenyl-, (Dimethylamino)phenyl-und Aminophenylcarben als Liganden in kationischen oder neutralen Komplexen des Typs π-ArCr(CO)2L (1976)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 109 (1976), S. 3089-3098 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Transition Metal Carbyne Complexes, XVPhenylcarbyne as well as Methoxyphenyl-, (Dimethylamino)phenyl-, and Aminophenylcarbene as Ligands in Cationic or Neutral Complexes of the Type π-ArCr(CO)2LComplexes of the type π-ArCr(CO)3 1a-d are converted into the carbene complexes π-ArCr(CO)2-[C(C6H5)OCH3] 2a-d by treatment with phenyllithium followed by alkylation. On treatment with boron trichloride 2a-d yield the cationic carbyne complexes of the general formula {π-ArCr(CO)2[C(C6H5]}⊕[BCl4]⊖ 3a, c, d Aminolysis with ammonia or dimethylamine leads to the aminocarbene complexes π-ArCr(CO)2[C6H5)NR2] 4 and 5 which are not obtainable by direct aminolysis of 2a-d. These diamagnetic complexes, some of which are very thermolabile, were characterized by i. r., H n. m. r., and 13C n. m. r. spectroscopy.
    Notes: Aus Tricarbonyl-Aromaten-chrom(0)-Komplexen π-ArCr(CO)3 1a-d lassen sich durch Umsetzung mit Phenyllithium und anschließende Alkylierung die Carbenkomplexe π-ArCr(CO)2-[C(C6H5)OCH3] 2a-d darstellen, deren Reaktion mit Bortrichlorid zu kationischen Carbinkomplexen der allgemeinen Formel {π-ArCr(CO)2[C(C6H5]}⊕[BCl4]⊖ 3a, c, d führt. Bei der Aminolyse der kationischen Komplexe mit Ammoniak oder Dimethylamin entstehen - durch Aminolyse von 2a-d nicht zugängliche - Aminocarbenkomplexe π-ArCr(CO)2[C6H5)NR2] 4 und 5. Die diamagnetischen, teilweise sehr thermolabilen Verbindungen werden durch IR-, 1 H-NMR-und 13C-NMR-Spektren charakterisiert.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19761090913
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  • 6
    Electronic Resource
    Electronic Resource
    Time dependence, complex scaling, and the calculation of resonances in many-electron systems (1978)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 14 (1978), S. 457-513 
    Details
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The theory of this paper deals with certain aspects of the formal properties of atomic and molecular highly excited nonstationary states and the problem of calculating their wave functions, energies, and widths. The conceptual framework is a decay theory based on the consistent definition and calculation of the t = 0 localized state, |Ψ. Given this framework, the following topics are treated: (a) The variational calculation of Ψ0 and E0 using a previously published theory that generalized the projection operator approach to many-electron systems. (b) The exact definition of the resonance energy. (c) The possibility of bound states in the continuum. (d) The relation of Ψ0 to the resonance (Gamow) function Ψ and of the Hamiltonian to the rotated Hamiltonian H(θ) based on the notion of perturbation of boundary conditions in the asymptotic region. (e) The variational calculation of real and complex energies employing matrix elements of H and H2 with square-integrable and resonance functions. (f) The mathematical structure of the time evolution of |Ψ0〉 and the possibility of observing nonexponential decays in certain autoionizing states that are very close to the ionization threshold. (g) A many-body theory of atomic and molecular resonances that employs the coordinate rotation method.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/qua.560140411
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  • 7
    Electronic Resource
    Electronic Resource
    Über Schwermetallvanadate und deren Ammoniakate (1926)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 9 (1926), S. 38-51 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19260090106
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  • 8
    Electronic Resource
    Electronic Resource
    Darstellung und Reaktionen von trans-Cyano(pseudo)halogeno-bis(triphenylphosphin)platin(II)-Komplexen (1975)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 108 (1975), S. 3317-3325 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Reactivity of trans-Cyano(pseudo)halogenobis(triphenylphosphine)platin(II). ComplexesThe oxidative addition of cyanogen halides to Pt(PPh3)4 affords the mixed trans-cyanohalogeno complexes (Ph3P)2Pt(X)CN 1a-c. In these complexes the halide ligands can be easily exchanged ↔other anions due to the trans effect of the cyanide group. The azide and fulminate ligand of 1d and g can be converted under mild conditions into iso(thio)cyanato groups. The cycloadduct 4b of 1d and acetonitrile contains N1- and N2-bonded 5-methyltetrazolate ligands. Above 190°C fluxional exchange N1 ↔ N2 ↔ N 3 ↔ N4 of the coordinated tetrazolate is observed.
    Notes: Die oxidative Addition von Halogencyan an Pt(PPh3)4 liefert die gemischten trans-Cyanohalogeno-Komplexe (Ph3P)2Pt(X)CN 1a-c. In diesen kann Halogenid aufgrund des trans-Effekts der Cyanogruppe leicht durch andere anionische Liganden ausgetauscht werden. Die Azid- und Fulminatliganden in 1d und g sind besonders reaktiv und lassen sich unter milden Bedingungen in die Iso(thio)cyanato-Gruppe umwandeln. Der durch Cycloaddition von Acetonitril an die Azid-gruppe von 1 d gebildete Komplex 4 b enthält N1- und N2-gebundene 5-Methyltetrazolat-Liganden. Oberhalb 190°C wird eine N1 ↔ N2 ↔ N3 ↔ N4-Fluktuation des koordinierten Tetrazolats festgestellt.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19751081024
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  • 9
    Electronic Resource
    Electronic Resource
    N-Dithiocarboxy-α-aminosäure-Komplexe von Nickel, Palladium und Platin(II) (1978)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 111 (1978), S. 1246-1252 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: N-Dithiocarboxy-α-amino Acid Complexes of Nickel, Palladium, and Platinum(II)A series of square-planar dithiocarbamato complexes Ni, Pd, Pt; (R″ = H, Et) with various α-amino acids as amine components is described and characterized by 1H NMR and IR spectra.
    Notes: Eine Reihe von quadratisch-planaren Dithiocarbamato-Komplexen des Typs (R′CO2R″)2 (M = Ni, Pd, Pt; R″ = H, Et) mit verschiedenen α-Aminosäuren als Aminkomponenten wird beschrieben und 1H-NMR- und IR-spektroskopisch charakterisiert.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19781110404
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  • 10
    Electronic Resource
    Electronic Resource
    Metallkomplexe mit N,N-Bis (diphenylphosphino)- α-aminosäureestern (1978)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 111 (1978), S. 615-628 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Metal Complexes with N,N-Bis(diphenylphosphino)-α-amino Acid EstersA series of metal complexes of palladium(II), platinum(II), rhodium(I) and carbonyl complexes of chromium, molybdenum, tungsten and manganese with the optically active title ligands (obtained from α-amino acids and chlorodiphenylphosphine) is described. The P—N-bond of the free ligands is cleaved by HCl; bis(diphenylphosphino)glycine methylester can be monoalkylated at the CH2 group.
    Notes: Mit den aus α-Aminosäureestern und Chlordiphenylphosphin erhaltenen. optisch aktiven Titelliganden werden eine Reihe von Metallkomplexen von Palladium(II). Platin(II), Rhodium(I) sowie von Chrom-, Molybdän-, Wolfram- und Mangancarbonylen und deren spektroskopische Daten beschrieben. Die P—N-Bindung in den freien Liganden läßt sich mit HCl spalten, Bis(diphenylphosphino)glycin-methylester an der CH2-Gruppe monoalkylieren.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19781110221
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