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  • Inorganic Chemistry  (10)
  • Rhenium
  • 1975-1979  (10)
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  • 1
    Electronic Resource
    Electronic Resource
    Notiz zur Metallkoordination von Äthoxycarbonyl-(4-nitrophenyl)carben (1975)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 108 (1975), S. 3412-3413 
    Details
    ISSN: 0009-2940
    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/cber.19751081032
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  • 2
    Electronic Resource
    Electronic Resource
    Komplexchemie reaktiver organischer Verbindungen, XIV. Das Reaktionsverhalten aliphatischer Diazoverbindungen gegenüber Tricarbonyl(cyclopentadienyl)hydridomolybdän und -wolfram (1977)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 110 (1977), S. 896-915 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Complex Chemistry of Reactive Organic Compounds, XIV. The Reactions of Aliphatic Diazo Compounds with the Tricarbonyl(cyclopentadienyl) Hydrides of Molybdenum and TungstenDepending on their constitution, aliphatic diazo compounds 3 behave differently in their reactions with tricarbonyl(cyclopentadienyl)hydridomolybdenum (1) and -tungsten (2). Diazomethane (3a), diazoethane (3b), and 2-diazopropane (3c) are stabilized as alkane diazo ligands in complexes of the type C5H5M(CO)2[N2CHR1R2] (M = Mo: 6; M = W: 7). Phenyl-, (4-nitrophenyl)-, (4-methoxyphenyl)diazomethane (3d, e, f), and 9-diazofluorene (3g) form in clean reactions the carbene insertion products C5H5M(CO)3CHR1R2 (M = Mo: 4; M = W: 5), whereas ω-diazoacetophenone (3h) and diazodimedone (3i) yield the binuclear diazo complexes C5H5M(CO)3-M(CO)2C5H5[N2 = CR1R2] (M = Mo: 9; M = W: 10). Diethyl diazomalonate (3h) is coordinated as an imino-amido ligand in the coordination compound 14 which arises from a 1,1-insertion of 3k into the polar tungsten-hydrogen bond of 2.
    Notes: In ihrer Reaktivität gegenüber Tricarbonyl(cyclopentadienyl)hydridomolybdän (1) und -wolfram (2) weisen Diazoalkane 3 starke konstitutionsbedingte Unterschiede auf: Diazomethan (3a), Diazoethan (3b) und 2-Diazopropan (3c) werden als Alkandiazo-Liganden in Komplexen vom Typ C5H5M(CO)2[N2CHR1R2] (M = Mo: 6; M = W: 7) stabilisiert; Phenyl-, (4-Nitrophenyl)-, (4-Methoxyphenyl)diazomethan (3d, e, f) sowie 9-Diazofluoren (3g) bilden in glatten Reaktionen die Carben-Insertionsprodukte C5H5M(CO)3CHR1R2 (M = Mo: 4; M = W: 5), während ω-Diazoacetophenon (3h) wie auch Diazodimedon (3i) die zweikernigen Diazoketon-Komplexe C5H5M(CO)3-M(CO)2C5H5[N2 = CR1R2] (M = Mo: 9; M = W: 10) ergeben. Diazomalonsäure-diethylester (3k) wird im Zuge einer zur Koordinationsverbindung 14 führenden 1,1-Insertion in die polare Wolfram-Wasserstoff-Bindung von 2 als Imino-amido-Ligand komplexiert.
    Additional Material: 8 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19771100310
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  • 3
    Electronic Resource
    Electronic Resource
    Komplexchemie reaktiver organischer Verbindungen, XXII1) Metallorganische Cyclopentadienylierungen mit Diazocyclopentadienen. Synthesen von (η-Halogencyclopentadienyl)eisen-Komplexen (1978)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 111 (1978), S. 3124-3135 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Complex Chemistry of Reactive Organic Compounds, XXII: Organometallic Cyclopentadienylations with Diazocyclopentadienes. Syntheses of (η-Halocyclopentadienyl)iron ComplexesThe tetracarbonyliron halides (CO)4Fe(σ-C3F7)I (2) and (CO)4FeX2 [X = Br: 4; X = I: 5] react with diazocyclopentadiene (1a) and its derivatives 1b-e to yield (η-monohalocyclopentadienyl)iron complexes (η-C5R4X)Fe(CO)2L (3a-d, 6a, b, 8) [R = H, Cl, Br, C6H5; X = Br, I; L = C3F7, Br, I] and 1,1′-dibromoferrocene (7a). In addition to the analytical and spectroscopic characterization, the constitution of (η-C5H4I)Fe(CO)2I (6b) has been proved chemically.
    Notes: Die Tetracarbonyleisen-halogenide (CO)4Fe(σ-C3F7)I (2) und (CO)4FeX2 [X = Br: 4; X = 1: 5] reagieren mit Diazocyclopentadien (1a) und seinen Derivaten 1b-e unter Bildung der (η-Monohalogencyclopentadienyl)eisen-Komplexe (η-C5R4X)Fe(CO)2L (3a-d, 6a, b, 8) [R = H, Cl, Br, C6H5;X = Br, I;L = C3F7, Br, I] und von 1,1′-Dibromeferrocen (7a). Über die analytische und spektroskopische Charakterisierung der Produkte hinaus ist die Konstitution von (η-C5H4I)Fe(CO)2I (6b) auch chemisch bewiesen.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19781110913
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  • 4
    Electronic Resource
    Electronic Resource
    Komplexchemie reaktiver organischer Verbindungen, XXI: Über eine einfache Synthese der Rhenium-Halbsandwich-Komplexe (η-C5H4)Re(CO)3 [X = Cl, Br, I] (1978)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 111 (1978), S. 2458-2460 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Complex Chemistry of Reactive Organic Compounds, XXI: On a Simple Synthesis of the Halfsandwich Rhenium Complexes (η-C5H4X)Re(CO)3 [X = Cl, Br, I]Tricarbonyl(η-chlorocyclopentadienyl)rhenium (3a), (η-bromocyclopentadienyl)tricarbonylrhenium (3b), and tricarbonyl(η-iodocyclopentadienyl)rhenium (3c) are formed in one-step, high-yield syntheses by cyclopentadienylation of the corresponding pentacarbonylrhenium halides (CO)5ReX [X = Cl (1a), Br (1b), I (1c)] with diazocyclopentadiene (2).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19781110644
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  • 5
    Electronic Resource
    Electronic Resource
    Notiz zur Darstellung von Tricarbonyl(cyclopentadienyl)-(p-toluolsulfonamido)wolfram (1976)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 109 (1976), S. 3489-3491 
    Details
    ISSN: 0009-2940
    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.19761091029
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  • 6
    Electronic Resource
    Electronic Resource
    Übergangsmetall-Methylen-Komplexe, IV: Neue Methylen-Cobalt-Komplexe (1978)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 111 (1978), S. 1077-1082 
    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 Methylene Complexes, IV: Novel Methylene Cobalt ComplexesDicarbonyl(η-cyclopentadienyl)cobalt (2) reacts with ethyl diazoacetate (3a), tert-butyl diazoacetate (3b), dimethyl diazomalonate (3c), and diethyl diazomalonate (3d) in boiling benzene to yield the dinuclear diamagnetic complexes [η-C5H5Co(CO)]2-μ-[C(R)(CO2R′)] (R = H, R′ = C2H5; 4a; R = H, R′ = tert-C4H9: 4b: R = CO2CH3, R′ = CH3: 5a: R = CO2C2H5, R′ = C2H5: 5b) in which the carbenes corresponding to 3a-d are stabilized as bridging ligands.
    Notes: Dicarbonyl(η-cyclopentadienyl)cobalt (2) reagiert mit Diazoessigsäure-ethylester (3a). Diazoessigsäure-tert-butylester (3b). Diazomalonsäure-dimethylester (3c) bzw. Diazomalonsäurediethylester (3d) in siedendem Benzol unter Bildung der zweikernigen diamagnetischen Komplexe [η-C5H5Co(CO)]2-μ-[C(R)(CO2R′)] (R = H, R′ = C2H5; 4a; R = H, R′ = tert-C4H9: 4b: R = CO2CH3, R′ = CH3: 5a: R = CO2C2H5, R′ = C2H5: 5b), in denen die 3a-d entsprechenden Carbene als Brückenliganden stabilisiert sind.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19781110326
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  • 7
    Electronic Resource
    Electronic Resource
    Photochemische Synthese von (η5-C5H5)2V2(CO)5 (1979)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 112 (1979), S. 392-393 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Photochemical Synthesis of (η5-C5H5)2V2(Co)5μ-Dicarbonyl-tricarbonylbis[(η5-cyclopentadienyl)vanadium](V-V) (2) has been synthesized in 89% yield by photolysis of tetracarbonyl(η5 -cylcopentadienyl)vanadium (1) in tetrahydrofuran using a falling-film photoreactor.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19791120136
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  • 8
    Electronic Resource
    Electronic Resource
    Komplexchemie reaktiver organischer Verbindungen, XXIV. Fünfgliedrige Cobaltacyclen durch Carben-Addition an Dicarbonyl-(η5-cyclopentadienyl)cobalt (1979)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 112 (1979), S. 1731-1742 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Complex Chemistry of Reactive Organic Compounds, XXIV. Five-Membered Cobalta Cycles from Carbene Addition to Dicarbonyl (η5-cyclopentadienyl)cobaltPhotolysis of the dialkyl diazomalonates 2a-g in the presence of dicarbonyl(η5-cyclopentadienyl)cobalt (1) in tetrahydrofuran yields the cobalta cycles 3a-g. The formation of the new compounds, established by X-ray structural determination on the case of 3c, can be explained formally as a result of a [2 + 3]-cycloaddition of the carbenes derived from the diazo precursors 2a-g to the organometallic substrate 1. The cyclic cobalt compounds 3a-g are converted by a thermal reaction with 1 through opening of the metalla cyclic structural element into the dinuclear μ-methylene cobalt compounds 4a-g.
    Notes: Durch Photolyse der Diazomalonsäure-dialkylester 2a-g in Gegenwart von Dicarbonyl-(η5-cyclopentadienyl)cobalt (1) in Tetrahydrofuran sind die Cobaltacyclen 3a-g zugänglich. Die Bildung der neuen, am Beispiel von 3c auch röntgenstrukturanalytisch gesicherten Verbindungen ist formal das Ergebnis einer [2 + 3]-Cycloaddition der von den Diazo-Vorstufen 2a-g abgeleiteten Carbene an das Organometall-Substrat 1. Unter Öffnung des metallacyclischen Strukturelements sind die cyclischen Cobalt-Derivate 3a-g bei thermischer Umsetzung mit 1 in die zweikernigen μ-Methylen-Cobalt-Komplexe 4a-g überführbar.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19791120523
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  • 9
    Electronic Resource
    Electronic Resource
    Metallcarbonyl-Synthesen, III. Eine ergiebige Hochdrucksynthese von Tetracarbonyl(η5-cyclopentadienyl)niob, (η5-C5H5)Nb(CO)4 (1979)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 112 (1979), S. 3942-3945 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Syntheses of Metalcarbonyls, III. A Productive High-Pressure Synthesis of Tetracarbonyl(η5-cyclopentadienyl)niobium, (η5-C5H5)Nb(CO)4Tetracarbonyl(η5-cyclopentadienyl)niobium (1), which could hitherto be prepared only in small amounts, can be synthesized with reproducible yields by reductive high-pressure carbonylation of (η5-C5H5)2NbCl2 (2) on a 5 - 20 g scale.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19791121219
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  • 10
    Electronic Resource
    Electronic Resource
    Chemie der Übergangsmetall-Heterocyclen-Komplexe, I. Über eine elektrophile Pyrrolyl-Eliminierung aus Azacymantren (1979)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 112 (1979), S. 2423-2435 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Chemistry of Transition Metal Heterocyclic Complexes, I. Electrophilic Pyrrolyl Elimination from AzacymantreneTricarbonyl(η5-pyrrolyl)manganese (2) reacts with diphenylketene in boiling tetrahydrofuran/water to yield the three-nuclear complex 4 as well as N-(diphenylacetyl)pyrrole (3). The configuration of 4 as a complex of the type fac-(CO)3Mn(L1)2L2 (L1 = 2; L2 = diphenylacetato-O) is deductable from the NMR spectra and has been proved by an X-ray structural determination for the crystalline state. - The novel N-azacymantrene complex (η5-C5H5)Mn(CO)2[(s̰-C4H4N)Mn(CO)3] (6) can be synthesized by ligand exchange on (η5-C5H5)Mn(CO)3 (1). Based on its IR and NMR data, 2 possesses a high s̰-donor/π-acceptor ratio when acting as a monodentate nitrogen ligand.
    Notes: Tricarbonyl(η5-pyrrolyl)mangan (2)ergibt bei der Reaktion mit Diphenylketen in siedendem Tetrahydrofuran/Wasser den Dreikern-Komplex 4 sowie N-(Diphenylacetyl)pyrrol (3). Die Konfiguration von 4 als Komplex vom Typ fac-(CO)3Mn(L1)2L2 (L1 =2; L2 = Diphenylacetato-O) ist aus den NMR-Spektren ableitbar und für den kristallinen Zustand durch Röntgenstrukturanalyse gesichert. - Der neuartige N-Azacymantren-Komplex (η5-C5H5)Mn(CO)2[(s̰-C4H4N)Mn(CO)3] (6) läßt sich durch gezielten Ligandenaustausch an (η5-C5H5)Mn(CO)3 (1) synthetisieren. Aufgrund der IR- und NMR-Daten besitzt 2 in seiner Eigenschaft als einzähniger Stickstoffligand ein hohes s̰-Donor/π-Akzeptor-Verhältnis.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19791120710
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