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  • Articles: DFG German National Licenses  (35)
  • 1985-1989  (8)
  • 1930-1934  (25)
  • 1890-1899  (2)
  • Inorganic Chemistry  (35)
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 122 (1989), S. 749-752 
    ISSN: 0009-2940
    Keywords: Matrix isolation ; Photochemistry ; Theoretical vibrational spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Infrarot-Spektren und Photochemie von Isodiazen und seinen deuterierten IsotopomerenDie Matrixisolation von Aminoisocyanat eröffnet einen neuen ergiebigen Weg zur Darstellung von Isodiazen (Aminonitren). Damit ist es möglich geworden, nicht nur sein IR-Spektrum eindeutig festzulegen und mit Hilfe von ab-initio-Rechnungen zu interpretieren, sondern auch seine Photochemie zu untersuchen.
    Notes: The matrix isolation of aminoisocyanate opens a new efficient route for the preparation of isodiazene (aminonitrene). Its infrared spectrum can now, with the help of ab initio calculations, be interpreted, and its photochemistry can be studied.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 120 (1987), S. 187-193 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Die Synthese von 1-Ethinylbicyclo[2.2.2]octan (1) und 1,4-Diethinylbicyclo[2.2.2]octan (2), von 1,4-Dichlor- (3) und von 1,4-Dibrombicyclo[2.2.2]octan (4) wird beschrieben. Die He(Iα) Photoelektronenspektren von 1 und 2 wurden mit Hilfe von STO-3G- und HAM/3-Rechnungen zugeordnet, während für die Deutung der Spektren von 3 und 4 ein Modell äquivalenter Bindungsorbitale verwendet wurde, welches die Spin-Bahn-Kopplung berücksichtigt.
    Notes: The synthesis of 1-ethynylbicyclo[2.2.2]octane (1), of 1,4-diethynylbicyclo[2.2.2]octane (2), of 1,4-dichloro- (3) and of 1,4-dibromobicyclo[2.2.2]octane (4) is reported. The He(Iα) photoelectron spectra of 1 and 2 have been assigned using the STO-3G and the HAM/3 procedure, whereas those of 3 and 4 have been interpreted on the basis of an equivalent bond orbital model including spin-orbit coupling.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 122 (1989), S. 753-766 
    ISSN: 0009-2940
    Keywords: Isofulminic acid ; Normal mode analysis ; Photoisomerizations ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Die CHNO-IsomerenDie kürzlich gelungene Isolierung von Isoknallsäure hat das Tor für eine vergleichende Studie über alle vier möglichen CHNO Isomere (Isocyansäure, Cyansäure, Knallsäure und Isoknallsäure) geöffnet. Ihre Infrarot-Spektren, aufgenommen in einer Argon-Matrix bei 13 K, werden mit den Ergebnissen von ab-initio-Rechnungen verglichen.
    Notes: The recent isolation of isofulminic acid has opened the door for a comparative study of all the four possible CHNO isomers: isocyanic acid, cyanic acid, fulminic acid, and isofulminic acid. Their infrared spectra have been measured in an argon matrix at 13 K and are compared with the results of ab initio calculations.
    Additional Material: 16 Ill.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Syntheses and Properties of cis-Bis(4-tert-butylphenyl)platinum(II)- and cis-(4-tert-Butylphenyl)-(phenyl)platinum(II) Compounds with Substituents of Different Electronic Character in the Phenyl Rings15 cis-bis(4-tert-butylphenyl)platinum(II) compounds and cis-(4-tert-Butylphenyl)(phenyl)platinum(II) compounds with substituents of increasing acceptor character have been synthesized and studied with respect to their thermal behaviour.
    Notes: 15 cis-Bis(4-tert-butylphenyl)platin(II)-Verbindungen und cis-(4-tert-Butylphenyl)(phenyl)platin(II)-Verbindungen mit Substituenten ansteigenden Akzeptor-Charakters wurden synthetisiert und massenspektrometrisch im Hinblick auf ihr thermisches Verhalten studiert.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 118 (1985), S. 2927-2939 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Photoelektronenspektren symmetrischer 1,4-DihalonorbornaneDie He(Iα)-Photoelektronenspektren von 1,4-Dihalonorbornanen (2-4) und 1-Bromnorbornan (5) wurden gemessen. Die Zuordnung basiert auf Ergebnissen eines kürzlich vorgeschlagenen Modells äquivalenter Bindungsorbitale, das auf Halogenatome erweitert wurde und die Spin-Bahn-Kopplung berücksichtigt.
    Notes: The He(Iα) photoelectron spectra of 1,4-dihalonorbornanes (2-4) and of 1-bromonorbornane (5) have been recorded. Their assignment is based on results derived from recently proposed equivalent bond orbital treatment which has now been adapted to include halogen atoms and to account for spin-orbit coupling.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Structure and Reactivity of Nickel(II) Complexes of the Type Ni(ONO)X (ONO = Di-anion of a Tridentate Schiff Base; X = Monodentate Neutral Ligand) as Compared to Pd(ONO)XThe four-coordinate chelate complexes Ni(ONO)(Lut), Pd(ONO)(PPh3), and Pd(ONO)(Lut) were prepared and characterized (ONO ≙ dianion of N-(2-hydroxyphenyl)-2-ethoxy-carbonyl-3-oxobutene(1)-amine(1); Lut = 2,6-dimethylpyridine). An X-ray structure analysis of Ni(ONO)(PPh3) and Ni(ONO)(Lut) was carried out according to which both complexes crystallize in the triclinic space group P1 with Z = 2. The coordination geometry for the nickel is practically square planar and the ring system of the lutidine in Ni(ONO)(Lut) is oriented perpendicular to the plane of coordination. Ligand substitution according to M(ONO)(PPh3) + Lut → M(ONO)(Lut) + PPh3 (M = Ni. Pd) was studied kinetically in acetone at 25°C. It follows the rate law -d[complex]/dt = kobs[complex] with kobs = k1 + k2[Lut]. The ratio of the second-order rate constants is found to be k2(Ni):k2(Pd) = 2.2 × 106:1.
    Notes: Die Chelatkomplexe Ni(ONO)(Lut), Pd(ONO)(PPh3) und Pd(ONO)(Lut) mit der Koordinationszahl 4 wurden dargestellt und charakterisiert (ONO ≙ Dianion von N-(2-Hydroxyphenyl))-2-ethoxycarbonyl-3-oxo-buten(1)-amin(1); (Lut = 2,6-Lutidin = 2,6-Dimethylpyridin). Eine Röntgenstrukturanalyse von Ni(ONO)(PPh3) und Ni(ONO)(Lut) wurde durchgeführt. Danach kristallisieren beide Komplexe in der triklinen Raumgruppe P1 mit Z = 2 und die Koordinationsgeometrie für das Nickel ist praktisch planar-quadratisch. In dem Komplex Ni(ONO)(Lut) steht das Ringsystem des Lutidins senkrecht zur Koordinationsebene. Die Ligandensubstitution M(ONO)(PPh3) + Lut → M(ONO()Lut) + PPh3 (M = Ni, Pd) in Aceton wurde bei 25°C kinetisch untersucht. Sie folgt dem Geschwindigkeitsgesetz -d[Komplex]/dt = kob3[Komplex] mit kob3 = k1 + k2[Lut]. Für das Verhältnis der Geschwindigkeitskonstanten zweiter Ordnung gilt k2(Ni): k2(Pd) = 2,2 · 106: 1.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal Structure of AgCu3Cu(AsO4)3 and its Structural Relations to AgCo3H2(AsO4)3 and AgZn3H2 (AsO4)3The compound AgCu3Cu(AsO4)3 was synthesized and investigated by X-rays. It crystallizes in the monoclinic space group C2/c with a = 1 212.7(2), b = 1 249.0(2), c = 727.8(1) pm, β = 117.94(1)°, Z = 4. The structure is closely related to the structures of AgCo3H2(AsO4)3 and AgZn3H2(AsO4)3. Only two hydrogen atoms are replaced by an additional copper atom forming a copper coordination square instead of two hydrogen bridges. The remaining copper atoms are sixfold coordinated with the generally observed Jahn-Teller distortion. Whereas in AgCo3H2(AsO4)3 and AgZn3H2(AsO4)3 silver has a (4+4) coordination, it is in this compound distinctly eightfold coordinated.
    Notes: Die Verbindung AgCu3Cu(AsO4)3 wurde synthetisiert und röntgenographisch untersucht. Sie kristallisiert in der monoklinen Raumgruppe C2/c mit a = 1 212,7(2), b = 1 249,0(2), c = 727,8(1) pm, β = 117,94(1)°, Z = 4. Die Struktur weist eine enge Verwandtschaft mit den Strukturen von AgCo3H2(AsO4)3 und AgZn3H2(AsO4)3 auf. Es sind hier lediglich zwei Wasserstoff-Atome durch ein zusätzliches Kupfer-Atom ersetzt, so daß anstelle zweier Wasserstoff-Brücken ein Kupfer-Quadrat eingebaut ist. Die anderen Kupfer-Atome sind sechsfach koordiniert mit der allgemein beobachteten Jahn-Teller-Verzerrung. Während beim AgCo3H2(AsO4)3 bzw. AgZn3H2(AsO4)3 Silber eine (4+4)-Koordination besitzt, liegt es hier in einer deutlichen Achterkoordination vor.
    Additional Material: 2 Ill.
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 521 (1985), S. 153-160 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: New Cyclic and Bicyclic Systems Made of Phosphorus, Carbon, and SulfurBy reaction of P4S10 with tertiary alkyl amines dialkylammonium salts of 3, 6- dialkyl1-2, 5-dithioxo-2λ5, 5°5-[1.4.2.5]dithiadiphosphorinan-2, 5-dithiols (V) are obtained. By pyrolysis the 3,6-dialkyl-2, 5, 7-trithia-1, 4-diphosphabicyclo[2.2.1] heptane-1,4-disulfides are formed (VIII). The result of an X-ray structural analysis of 3,6-di-isopropyl1-2,5,7-trithia-1,4-diphosphabicyclo [2.2.1]heptane-1,4-disulfide (VIIIc) is reported.
    Notes: Durch Umsetzung von P4S10 mit tertiären Alkylaminen werden Dialkylammonizumsalze von 3, 6-Dialkyl-2, 5-dithioxo-2λ5-[1.4.2.5]dithiadiphosphorinan-2,5-dithiolen (V) erhalten. Durch Pyrolyse entstehen daraus 3,6-Dialkyl-2,5, 7-trithia-1, 4-diphosphabicyclo[2.2.1]heptan-1, 4-disulfide (VIII). Von 3, 6-Di-isopropyl-2,5, 7-trithia-1,4-diphosphabicyclo[2.2.1]-heptan-1, 4-disulfid (VIIIc) wird das Ergebnis der Röntgenstrukturanalyse mitgeteilt.
    Additional Material: 3 Ill.
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 28 (1895), S. 2687-2693 
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 32 (1899), S. 1985-1987 
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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