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  • 11
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Beiträge zur Chemie der Alkylverbindungen von Übergangsmetallen 51. Darstellung und Charakterisierung der Organomangan (III)- Verbindung Na[Mn(C5H5)4]Bei der Reaktion von Mn(acac)3 mit NaC5H5 in Tetrahydrofuran entsteht kristallines, rotviolettes, diamagnetisches Na[Mn(η1-C5H5)4-n(η5 -C5H5)n]. Eine nähere Charakterisierung erfolgte durch das 1H-NMR-, IR- und UV-VIS-Spektrum sowie durch Leitfähigkeitsmessngen.
    Notes: At reaction of Mn(acac)3 with NaC5H5 in tetrahydrofuran solution Na[Mn(η1-C5H5)4-n(η5 -C5H5)n] was obtained as a crystalline, red-violet, diamagnetic organomanganese(III) compound, which was characterized by n.m.r., i.r., and electronic spectra and by conductivity measurements.
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  • 12
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The interaction between alkyl magnesium halides and titanium(IV)-chloride and -bromide in nonpolar solvents is investigated. The reaction products, mostly mixtures of two substances, were isolated in the form of thermally stable complexes with 2,2′-bipyridyl.
    Notes: Es wird über die Einwirkung ätherfreier Alkylmagnesiumhalogenide auf Titan(IV)-chlorid und Titan(IV)-bromid in unpolaren Lösungsmitteln berichtet. Die entstehenden Reaktionsprodukte, meist Substanzgemische, wurden als thermisch stabile 2,2′-Dipyridyl-komplexe isoliert.
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  • 13
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Transition Metal Alkyl Compounds. XII. On Attempts to prepare Benzyl Compounds of Nickel, Cobalt, and IronReport about attempts to prepare benzyl compounds of nickel, cobalt and iron by reactions of halides of these metals, triaryl and trialkylphosphine complexes of nickel and cobalt halides, bis(cyclooctadiene-1,5)nickel and tetrakis(triphenylphosphine)-nickel with several benzylating agents. In the course of some reactions the intermediate formation of instable benzyl compounds seems to occur, but an isolation failed in each case.
    Notes: Bericht über Versuche zur Benzylierung von Nickel-, Kobalt-und Eisenhalogeniden, Triaryl- und Trialkylphosphinkomplexen von Nickel- und Kobalthalogeniden, Nickel-bis-cyclooctadien und Nickeltetrakis-triphenylphosphin mit verschiedenen Benzylierungsreagenzien. Bei einigen der Reaktionen erfolgte offensichtlich intermediär die Bildung instabiler Benzylmetallverbindungen, doch gelang in keinem Falle deren Isolierung.
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  • 14
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 415 (1975), S. 109-114 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Transition Metal Alkyl Compounds. XVI. On the Existence and Synthesis of Benzyl Nickel CompoundsIt is reported on experiments for benzylating nickel chloride and its triaryl and trialkylphosphine complexes by means of benzyl magnesium halides. Attempts for preparation of simple “binary” nickel benzyls failed, but it was possible to synthesize some o-substituted benzyl nickel compounds stabilized by trialkyl phosphines of the type
    Notes: Es wird über Versuche zur Benzylierung von Nickelchlorid und dessen Triaryl- und Trialkylphosphinkomplexen mittels Benzylmagnesiumhalogeniden berichtet. Während Versuche zur Gewinnung einfacher „binärer“ Nickelbenzyle fehlschlugen, gelang die Synthese einiger trialkylphosphinstabilisierter Benzylnickelderivate mit o-ständigen Substituenten in den Benzolringen vom Typ
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  • 15
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 421 (1976), S. 129-134 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Transition Metal Alkyl Compounds. XVIII. On the Preparation and Properties of Tetrabenzyl Vanadium and Benzyl Tantalum ChloridesPure tetrabenzyl vanadium was isolated and characterized by elementary analyses, EPR and 1H-NMR spectra, by hydrolysis and thermal decomposition.  -  Experiments for the preparation of tetra or pentabenzyl compounds of niobium and tantalum failed, but we could prepare C6H5CH2TaCl4, (C6H5CH2)2TaCl3, and (C6H5CH2)3TaCl2, the last two in form of bipyridyl complexes.
    Notes: Vanadintetrabenzyl wurde in definierter Form isoliert und durch Elementaranalyse, ESR- und 1H-NMR-Spektrum sowie durch die hydrolytische und thermische Spaltung charakterisiert.  -  Versuche zur Gewinnung von Tetra- und Pentabenzylverbindungen des Niobs und Tantals blieben erfolglos. Es gelang jedoch, die Verbindungen C6H5CH2—TaCl4, (C6H5CH2)2TaCl3 und (C6H5CH2)3TaCl2, zum Teil in Form von Dipyridylkomplexen, zu gewinnen.
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  • 16
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 536 (1986), S. 147-152 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Organo-Transition Metal Compounds. 47. Reactions of Hexachlorocerates(IV) with Organolithium CompoundsPyridinium hexachlorocerate(IV) reacts with lithium organyls RLi RLi (R = 1-Nor, (CH3)2NCH2CH2CH2, n-C4H9) in the molar ratio 1:2 with formation of Li2[CeCl6] · 2 NC5H5. A further mol RLi effects a reduction to Li3[CeCl6] · 2 NC5H5. With an excess of RLi amidocerium(III) complexes of the typ Li4 are formed.Li2[CeCl6] is formed also at reactions of quartery ammonium salts, e. g. [C6H5CH2N(C2H5)3]2[CeCl6], with RLi (R = 1-Nor, Me22NCH2CH2CH2) followed by an reduction to Li3[CeCl6]. An excess of the lithium organyl effects the formation Li4[RCeCl6] complexes.The yielded compounds were characterized by elementary analysis, the hydrolysis and deuterolysis products, magnetic moments, and IR-spectra.
    Notes: Pyridiniumhexachlorocerat(IV) reagiert mit Lithiumorganylen RLi (R = 1-Nor, (CH3)2NCH2CH2CH2, n-C4H9) im Molverhältnis 1:2 zu Li2[CeCl6] · 2 NC5H5. Ein weiteres Mol RLi bewirkt eine Reduktion zum Li3[CeCl6] · 2 NC5H5. Mit einem Überschuß an RLi erfolgt die Bildung von Amidocer(III)-Komplexen des Typs Li4Bei der Reaktion von quartären Ammoniumsalzen, z. B. von [C6H5CH2N(C2H5)3]2[CeCl6], mit RLi (R = 1-Nor, (CH3)2NCH2CH2CH2) entsteht zunächst ebenfalls Li2[CeCl6] neben einem tert. Amin, gefolgt von der Reduktion zum Li3[CeCl6]. Ein Überschuß des Lithiumorganyls bewirkt in diesem Falle die Bildung von Organylhexachlorocerat(III)-Komplexen des Typs Li4[RCeCl6].Die erhaltenen Verbindungen wurden durch Elementaranalysen, ihre Hydrolyse- und Deuterolyseprodukte, die magnetischen Momente und IR-Spektren charakterisiert.
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  • 17
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 548 (1987), S. 175-179 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Transition Metal Alkyl Compounds. 50. A non-common Organolanthanum CompoundLanthanum reacts with dibenzyl mercury in tetrahydrofuran as a solvent with splitting of solvent molecules and with formation of ethylene and a benzyl hydrido vinyloxide lanthanum complex of the composition C6H5CH2La(H)OCH=CH2 · 2 THF. This complex, primary well soluble in tetrahydrofuran, is extremely sensitive against air and moisture and undergoes a fast coordination polymerisation with a strong decrease of the solubility.The compound was characterized by elementary analysis, the hydrolysis and deuterolysis reaction, and by the i.r. spectra.
    Notes: Lanthan reagiert mit Dibenzylquecksilber in Tetrahydrofuran als Reaktionsmedium unter Spaltung von Lösungsmittelmolekülen zu Ethylen und einem Benzylhydridovinyloxid-lanthan-Komplex der Zusammensetzung C6H5CH2La(H)OCH=CH2 · 2 THF. Dieser anfangs in Tetrahydrofuran gut lösliche Komplex ist extrem luft- und feuchtigkeitsempfindlich und unterliegt rasch einer Koordinationspolymerisation unter starker Abnahme der Löslichkeit.Die Charakterisierung erfolgte durch Elementaranalyse, Verfolgung der Hydrolyse und Deuterolyse sowie Auswertung des IR-Spektrums.
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  • 18
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Organo Transition Metal Compounds. 52. Preparation, Characterization, and Reactions of (C5H5)3Ce · THF and Na[Ce(C5H5)4] · THF(C5H5)3 · THF (I) was synthesized in a simple manner by reaction of (NH4)2[Ce(NO3)6] with C5H5Na. With excess C5H5Na the complex Na[Ce(C5H5)4] · THF (II) could be obtained.In addition of cyclovoltammetric and polarographic measurements it was tried without success to transfer I and II into organocerium(IV) compounds by means of different oxidizing agents. II reacts with I2 and (C6H5)3CCl forming Na[(C5H5)3CeI] · THF or Na[(C5H5)2CeI2] · 4 THF and I besides of (C6H5)3CCl respectively. At interaction of I with Co(acac)3 the cobalticinium salt [(C5H5)2Co][C5H5Ce(acac)3] is formed.The compounds obtained were characterized by elementary analysis, hydrolysis products, magnetic moments, i.r., 1H-n.m.r. und u.v.-vis spectra, and measurements of electric conductivity.
    Notes: (C5H5)3 · THF (I) kann auf bequeme Weise durch Umsetzung von (NH4)2[Ce(NO3)6] mit C5H5Na erhalten werden. Bei Verwendung eines Überschusses von C5H5Na entsteht das bisher nicht beschriebene Na[Ce(C5H5)4] · THF (II).Ausgehend von cyclovoltammetrischen und polarographischen Messungen wurden Versuche zur Überführung von I und II in Organocer(IV)-Verbindungen mittels verschiedener Oxydationsmittel angestellt. Diese verliefen negativ im Sinne der Zielstellung. II reagiert mit I2 zu Na[(C5H5)3CeI] · THF bzw. Na[(C5H5)2CeI2]. 4 THF und mit (C6H5)3CCl zu (C5H5)3Ce · THF neben C5H5C(C6H5)3. Bei der Einwirkung von Co(acac)3 auf I entsteht das Cobalticinium-Salz [(C5H5)2Co][C5H5Ce(acac)3].Eine detaillierte Charakterisierung der erhaltenen Verbindungen erfolgte durch ihre Elementaranalysen, Hydrolysenprodukte, magnetischen Momente, IR-, 1H-NMR- und Elektronenspektren sowie durch Leitfähigkeitsmessungen.
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  • 19
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 498 (1983), S. 115-120 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Transition Metal Alkyl Compounds. XXXIV. Synthesis and Properties of 3-(N,N-dialkylamino)propyl Manganese CompoundsMnCl2 reacts with lithium organyls of the type R2N(CH2)3Li with formation of definite organomanganese complexes. The pure [(CH3)2N(CH2)3]2Mn, [(C2H5)2N(CH2)3]2Mn, [(CH2)5N(CH2)3]2Mn and the complexes [(CH3)2N(CH2)3]2Mn · LiCl and Li{Mn[(CH2)3N(CH3)2]3} · 1,5 THF were isolated.[(CH3)2N(CH2)3]2Mn · 2 Li(acac) was obtained as a result of reactions of Mn(acac)2 and Mn(acac)3 with the corresponding lithium organyl.The σ-organomanganese(II) derivatives were characterized in detail by elementary analysis, molecular weight determination, ESR- and IR-spectra, conductivity measurements and the magnetic moments.
    Notes: MnCl2 reagiert mit Lithiumorganylen des Typs R2N(CH2)3Li zu definierten Organomanganverbindungen. In reiner Form wurden [(CH3)2N(CH2)3]2Mn, [(C2H5)2N(CH2)3]2Mn, [(CH2)5N(CH2)3]2Mn und Komplexe der Zusammensetzung [(CH3)2N(CH2)3]2Mn · LiCl und Li{Mn-[(CH2)3N(CH3)2]3} · 1,5 THF isoliert. Ausgehend von Mn(acac)2 und Mn(acac)3 wurde [(CH3)2N(CH2)3]2Mn · 2 Li(acac) erhalten.Die nähere Charakterisierung der σ-Organomangan(II)-Derivate erfolgt durch Elementaranalysen, kryoskopische Molmassebestimmungen, ESR- und IR-Untersuchungen, Leitfähigkeitsmessungen und Ermittlung der magnetischen Momente.
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  • 20
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 511 (1984), S. 89-94 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Transition Metal Alkyl Compounds. XXXVIII. Reactions of Dibenzyl Manganese with Oxygene(C6H5CH2)2Mn · C4H8O2 reacts with oxygen forming an unstable deep violet compound which changes in a stable unsoluble yellow peroxide of the formula C6H5CH2MnO—OMnCH2C6 H5. With excess oxygen a polynuclear complex of 3 valent manganese is formed with the composition Mn4O4(OH)4(OCHC6H5)2.The compounds isolated were characterized by the products of hydrolyses and thermolyses, anaerobic reaction with iodine, magnetic moments, i.r. and e.s.r. spectra.
    Notes: Dibenzylmangan-1,4-dioxan reagiert mit Sauerstoff zu einer tiefvioletten instabilen Substanz. Diese wandelt sich in ein stabiles gelbes, schwerlösliches Peroxid der Formel C6H5CH2MnO—OMnCH2C6H5 um. Mit überschüssigem Sauerstoff entsteht daraus ein Mehrkernkomplex des 3wertigen Mangans der Zusammensetzung Mn4O4(OH)4(OCHC6H5)2.Die isolierten Verbindungen wurden durch ihre Hydrolyse- und Thermolyseprodukte, anaerobe Iodierung, magnetischen Momente sowie IR- und ESR-Spektren näher charakterisiert.
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