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  • 1
    Electronic Resource
    Electronic Resource
    Metallorganische Innerkomplexe, III. Berylliumorganische Innerkomplexe vom Spirantyp (1957)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 90 (1957), S. 1578-1586 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Frühere Untersuchungen über metallorganische Innerkomplexe werden auf das Beryllium ausgedehnt. Die (spiranartigen) Verbindungen Beryllium-bis-[δ-meth-oxy-butyl] und Beryllium-bis-[γ-äthylmercapto-propyl] werden synthetisiert, als Innerkomplexe erwiesen und hinsichtlich ihrer Stabilität untersucht. Die Darstellung von o-Brombenzyl-äthylsulfid wird beschrieben.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19570900827
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  • 2
    Electronic Resource
    Electronic Resource
    [(Arene)(Diene)Fe] and [(Arene)(Diazadiene)Fe] Complexes: Preparation, Reactivity, and Catalytic Properties (1998)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 1998 (1998), S. 119-126 
    Details
    ISSN: 1434-1948
    Keywords: Arene complexes ; Catalysis ; Diazadiene complexes ; Iron ; Metal vapour ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Two different routes to novel [(diene)(η6-2,6-dimethylpyridine)Fe] complexes are reported, both of which utilize metal vapour reactions. The presence of two small substituents on the 2,6-position of pyridine is essential for the η6-coordination of the heterocycle. Investigations on the reactivity and stability of the [(diene)(η6-arene)Fe] complexes are presented, including those of the benzene, phosphinine, and pyridine derivatives. These investigations give some hints to the relevant factors for determining the interaction between an iron atom and a π-coordinated neutral arene ligand, and their modification by a nitrogen or a phosphorus atom. Selective substitution of the 1,5-cyclooctadiene (COD) ligand of [(COD)(η6-arene)Fe] complexes by some 1,4-diaza-1,3-diene (DAD) derivatives is possible in the case of the benzene or phosphinine arene ligands, and [(DAD)(η6-arene)Fe] complexes are formed, but all DAD derivatives tested so far cause the complete disintegration of [(COD)(η6-2,6-dimethylpyridine)Fe]. [(DAD)(η6-arene)Fe] complexes exhibit a catalytic potential, which was evaluated by experiments on the catalytic cyclodimerization of 1,3-butadiene in the presence of [(Et2AlOEt)2] as a co-catalyst. This reaction yields up to 92% of 1,5-cyclooctadiene, and an almost quantitative butadiene conversion is possible in the presence of less than 0.1% of the catalyst. Structural investigations on [(N,N′-bis(cyclohexyl)ethylenediimine)(η6-toluene)Fe] 5a reveal some details of the Fe-DAD interaction. An effective electron back-donation from occupied iron d-orbitals into the π*-LUMO of the DAD is indicated.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Darstellung und Eigenschaften von N,N-Dialkyl-allylaminoboran-Addukten und N,N-Dimethyl-aminopropylboran (1995)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 621 (1995), S. 97-100 
    Details
    ISSN: 0044-2313
    Keywords: Boranes ; Borazanes ; Organoboron chelate compounds ; n.m.r.-spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Properties of N,N-Dialkyl-allylaminoboranes and N,N-DimethylaminopropylboraneComplexes of the type H3B ← NR2(CH2CH=CH2) (R=CH3 I, C2H5 II) are formed by reaction of Li[BH4] with dialkylallylammonium salts. By addition of AlCl3 I can be transformed into the chelate-stabilized N,N-dimethyl-aminopropylborane III. The i.r.-, 1H, 13C-n.m.r. and mass-spectra of I-III are reported and discussed.
    Notes: Bei der Einwirkung von Li[BH4] auf Dialkylallyl-ammonium-Salze entstehen Addukte des Typs H3B ← NR2(CH2CH=CH2) (R=CH3 I, C2H5 II). I reagiert bei Zugabe von AlCl3 zum chelatstabilisierten N,N-Dimethyl-aminopropylboran III. - Die IR-, 1H- und 13C-NMR- sowie M-Spektren von I-III werden mitgeteilt und diskutiert.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19956210117
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  • 4
    Electronic Resource
    Electronic Resource
    Darstellung und Eigenschaften von 3-(N,N-Dimethylamino)propyl-Verbindungen des Thalliums (1995)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 621 (1995), S. 2025-2028 
    Details
    ISSN: 0044-2313
    Keywords: Organothallium chelat complexes ; dimethylaminopropyl ligands, MOVPE ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Properties of 3-(N,N-Dimethylamino)propyl Thallium CompoundsTlCl3 reacts with Me2NCH2CH2CH2Li in molar ratio 1:2 with formation of (Me2NCH2CH2CH2)2TlCl (1) which can be transfered with MeLi into (Me2NCH2CH2CH2)2TlMe (2) and with excess of Me2NCH2CH2CH2Li into (Me2NCH2CH2CH2)3Tl (3) respectively. Comproportionation of 1 with TlCl3 yields rather instable Me2NCH2CH2CH2TlCl2 (4) from which Me2NCH2CH2CH2TlMe2 (5) can be obtained by alkylation with MeLi. 1-3 and 5 were characterized by elemental analysis, mass spectra, 1H- and 13C-n.m.r. spectra.
    Notes: TlCl3 reagiert mit Me2NCH2CH2CH2Li im Molverhältnis 1:2 zu (Me2NCH2CH2CH2)2TlCl (1), welches mit MeLi in (Me2NCH2CH2CH2)2TlMe (2) und mit weiterem Me2NCH2CH2CH2Li in (Me2NCH2CH2CH2)3Tl (3) übergeht. Bei der Komproportionierung von 1 mit TlCl3 entsteht das wenig stabile Me2NCH2CH2CH2TlCl2 (4), das in situ mittels MeLi in das beständige Me2NCH2CH2CH2TlMe2 (5) übergeführt werden kann. Die 1H- und 13C-NMR-Spektren von 1-3 sowie 5 werden mitgeteilt und die Strukturverhältnisse diskutiert.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19956211208
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  • 5
    Electronic Resource
    Electronic Resource
    Zur Bildung von Vinylverbindungen des Lanthans und LutetiumsProfessor Herbert W. Roesky zum 60. Geburtstag gewidmet (1995)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 621 (1995), S. 2089-2092 
    Details
    ISSN: 0044-2313
    Keywords: Organo rare earth complexes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On Preparation of Vinyl Compounds of Lanthanum and LutetiumAt reaction of permethyllanthanocene chloride with vinyl lithium coupling of vinyl groups takes place with formation of the butadiene complex [Li(dme)3][Cp2*La(C4H6)] (1). The corresponding lutetium compound yields the expected vinyl complex Cp2*Lu(CH=CH2) · LiCl · dme (4) with low stability. Furthermore, the more stable alkenyl compounds Cp2*LaCPh=CMe2 · 2 thf (2) and Cp2*LuCPh=CMe2 · MgCl2 · dme (3) could be obtained. The new complexes were characterized by their 1H and 13C-n.m.r. spectra.
    Notes: Permethyllanthanocenchlorid reagiert mit Vinyllithium unter Vinylkopplung zu dem Butadienkomplex [Li(DME)3] [Cp2*La(C4H6)] (1). Ausgehend von der entsprechenden Lutetiumverbindung konnte dagegen das gesuchte Cp2*Lu(CH=CH2) · LiCl · DME (4) als wenig beständige Substanz erhalten werden. Als stabilere Alkenylverbindungen werden das Cp2*LaCPh=CMe2 · 2 THF (2) und Cp2*LuCPh=CMe2 · MgCl2 · DME (3) beschrieben. Die Charakterisierung der Komplexe erfolgte durch ihre 1H- und 13C-NMR-Spektren.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19956211219
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  • 6
    Electronic Resource
    Electronic Resource
    Die 3-(N,N-Dimethylamino)prop-1-enyl-Gruppe als Chelatligand in Organoindium-Verbindungen (1997)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 623 (1997), S. 1679-1683 
    Details
    ISSN: 0044-2313
    Keywords: Organoindium compounds ; chelate complexes ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The 3-(N,N-Dimethylamino)prop-1-enyl Group as a Chelate Ligand in Indium OrganylsInBr3 reacts with Me2NCH2CH=CHMgCl (molar ratio 1 : 2) to form (Me2NCH2CH=CH)2InBr (1) as the first indium alkenyl compound with amino-functionalized alkenyl groups. The X-ray structure determination shows the formation of a chelate complex. 1 crystallizes in the orthorhombic space group Fddd with the unit cell parameters a = 14.904(2) Å, b = 17.140(1) Å and c = 21.035(2) Å. By reaction of Me2InBr with Me2NCH2CH=CHMgCl (molar ratio 1 : 1) (Me2NCH2CH=CH)InMe2 (2) is formed as a colorless, at room temperature liquid, monomeric compound. The n.m.r. and mass spectra are discussed.
    Notes: InBr3 reagiert mit Me2NCH2CH=CHMgCl (Molverhältnis 1 : 2) in Diethylether als Lösungsmittel zu (Me2NCH2CH=CH)2InBr (1), der ersten Indium-Alkenylverbindung mit aminofunktionalisierten Alkenylresten. Die Röntgenkristallstrukturanalyse zeigt das Vorliegen eines Chelatkomplexes an. 1 kristallisiert orthorhombisch in der Raumgruppe Fddd mit Z = 16, a = 14,904(2) Å, b = 17,1405(14) Å und c = 21,035(2) Å. Aus Me2InBr und Me2NCH2CH=CHMgCl (Molverhältnis 1 : 1) wurde (Me2NCH2CH=CH)InMe2 (2) als farblose, bei Raumtemperatur flüssige, monomere Verbindung erhalten. Die 1H- und 13C-NMR-Spektren sowie Massenspektren werden mitgeteilt.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19976231033
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  • 7
    Electronic Resource
    Electronic Resource
    Register für the Bände 401-410 (1975)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 411 (1975), S. 193-193 
    Details
    ISSN: 0044-2313
    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/zaac.19754110302
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  • 8
    Electronic Resource
    Electronic Resource
    Jahresregister 1984 für die Bände 508-519. (Bearbeitet von K.-H. Thiele, Merseburg) (1985)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 530 (1985), S. R1 
    Details
    ISSN: 0044-2313
    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/zaac.19855301202
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  • 9
    Electronic Resource
    Electronic Resource
    Zur Thermischen Zersetzung von Dimethylzink (1993)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 947-950 
    Details
    ISSN: 0044-2313
    Keywords: Dimethyl zinc ; thermal decomposition ; oligomer organozinc compounds ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Thermal Decomposition of Dimethyl ZincThe thermal decomposition of dimethyl zinc has been investigated in a static system between 588 and 673 K in the pressure range from 8 to 372 mbar. Gaseous products are methane, ethylene, ethane, propane, propylene and butane. The formation of a new solid product of the composition CH3(ZnCH2)xZnCH3 (x = 3,2…4,0) has been detected.
    Notes: Die thermische Zersetzung von Dimethylzink wird unter statischen Bedingungen im Temperaturintervall von 588 bis 673 K und im Bereich der Anfangsdrücke des Edukts von 8 bis 372 mbar untersucht. Gasförmige Produkte sind Methan, Ethylen, Ethan, Propylen und Butan. Es wird die Bildung eines neuartigen Feststoffes der Zusammensetzung CH3(ZnCH2)xZnCH3 (x = 3,2-4,0) nachgewiesen.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19936190523
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  • 10
    Electronic Resource
    Electronic Resource
    Intramolekulare C—H-Aktivierung bei der Reaktion von Bis(benzylcyclopentadienyl)zirconiumdichlorid mit Vinyllithium  -  Bildung eines Crotyl-zirconacyclus (1993)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 1488-1490 
    Details
    ISSN: 0044-2313
    Keywords: Bis(benzylcyclopentadienyl)zirconium dichloride ; C—H Activation ; Orthometallation Reaction ; Crotylzirconium Compounds ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Intramolecular C—H Activation at Reaction of Bis(benzylcyclopentadienyl)zirconium Dichloride with Vinyllithium  -  Formation of a Crotyl ZirconacyclusBis(benzylcyclopentadienyl)zirconium dichloride, (C6H5CH2—C5H4)2ZrCl2 (V), reacts with vinyl lithium with formation of the chiral compound (C6H5CH2—C5H4)— —CH2CH=CHCH3 (IX) as the product of vinyl group coupling and an orthometallation reaction. The reaction mechanism and the 13C n.m.r. spectrum are discussed.
    Notes: Bei der Reaktion von Bis(benzylcyclopentadienyl)zirconiumdichlorid, (C6H5CH2—C5H4)2ZrCl2 (V), mit Vinyllithium entsteht nicht das entsprechende Divinylderivat, sondern die chirale Crotylverbindung der Formel (C6H5CH2—C5H4)— —CH2CH=CHCH3 (IX) als Produkt einer Kopplung von Vinylgruppen und einer Orthometallierungsreaktion. Der Bildungsmechanismus und das 13C-NMR-Spektrum werden diskutiert.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19936190828
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