Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Organometallics 8 (1989), S. 1744-1750 
    ISSN: 1520-6041
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Organometallics 11 (1992), S. 1328-1333 
    ISSN: 1520-6041
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 116 (1994), S. 5507-5508 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 1999 (1999), S. 1-5 
    ISSN: 1434-1948
    Keywords: Terpyridine ligands ; Ferrocenes ; Iron ; Ruthenium ; Cyclic voltammetry ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 2,2′:6′,2′′-Terpyridines bearing a substituent × in the 4′-position [3a: × = Fc-C≡C-p-C6H4; 3b: × = Fc#-C≡C-p-C6H4; Fc = (C5H5)Fe(C5H4), Fc# = (C5Me4H)Fe(C5Me4)] were prepared by Pd0-catalysed cross-coupling reactions. 3b was characterised by X-ray structure analysis. [(3a)RuCl2(DMSO)] (4a) and [(3b)RuCl2(DMSO)] (4b) were obtained by reaction of [RuCl2(DMSO)4] with 1 equivalent of 3a and 3b, respectively, while the analogous reaction with 2 equivalents afforded [(3a)2Ru][PF6]2 (5a) and [(3b)2Ru][PF6]2 (5b), respectively, after precipitation with aqueous [NH4][PF6]. Similarly, [(3a)Ru(tpy)][PF6]2 (6) was isolated from the reaction of 4a with 2,2′:6′,2′′-terpyridine (tpy). Compounds 3 and 5 were investigated by cyclic voltammetry, which revealed that the introduction of eight methyl groups leads to the expected cathodic shift of the E0′ values of ca. 0.44 V for the ferrocenyl-centered redox processes.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 109 (1997), S. 859-862 
    ISSN: 0044-8249
    Keywords: Ge-Liganden ; Koordinationschemie ; Mehrfachbindungen ; Si-Liganden ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 108 (1996), S. 990-991 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 128 (1995), S. 1135-1136 
    ISSN: 0009-2940
    Keywords: Hemilabile ligands ; Cyclopentadienyl ligands, functionalised ; Iron compounds ; Halfsandwich complex ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Reaction of iron(II) chloride with one equivalent of [MeO-(CH2CH2O)3(CH2)3C5Me4]Li in THF yields the title halfsand-wich complex 1, which is stable in solution up to room temperature. Compound 1 reacts with C5H5Li and CO to give [MeO(CH2CH2O)3(CH2)3C5Me4]Fe(C5H5) (2) and [MeO-(CH2CH2O)3(CH2)3C5Me4]Fe(CO)2CI (3), respectively, in high yields.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 122 (1989), S. 993-995 
    ISSN: 0009-2940
    Keywords: Cyclopentadienone ; Cyclophanoid cyclopentadienone ; Paracyclophane synthesis ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Diels-Alder Reactions of a Double-Layered, Cyclophanoid Cyclopentadienone: A Novel approach to [n.n]ParacyclophanesDiels-Alder reactions of the double-layered, cyclophanoid cyclopentadienone 2,3,10,11-tetraphenyltricyclo[12.1.1.19,12] octadeca-1,3,9,11-tetraene-17,18-dione (1b) are examined. 1b reacts with dimethyl acetylenedicarboxylate (2) to give tetramethyl 9,10,19,20-tetraphenyl[4.4]paracyclophane-6,7,16,17-tetracarboxylate (3a); the analogous reaction with phenyl vinyl sulfoxide (4) yields 6,7,16,17-tetraphenyl[4.4]paracyclophane (3b). These reactions are examples of a novel synthetic principle for the construction of [n.n]paracyclophanes under non-dilution conditions. Reaction of 1b with 4-phenyl-4H-1,2,4-triazol-3,5-dione (5a) gives the [4.4]triazolopyridazinedionophane 6; the analogous reaction with diethyl diazenedicarboxylate (5b) yields the tetracyclohenicosatrienone 7.
    Notes: Es werden Diels-Alder-Reaktionen des zweilagigen, cyclophanoiden Cyclopentadienons 2,3,10,11-Tetraphenyltricyclo[12.1.1.19,12] -octadeca-1,3,9,11-tetraen-17,18-dion (1b) untersucht. 1b reagiert mit Dimethyl-acetylendicarboxylat (2) zu 9,10,19,20-Tetraphenyl-[4.4]paracyclophan-6,7,16,17 -tetracarbonsäure-tetramethylester (3a); die analoge Umsetzung mit Phenylvinylsulfoxid (4) ergibt 6,7,16,17-Tetraphenyl[4.4]paracyclophan (3b). Diese Reaktionen sind Beispiele für ein neuartiges Syntheseprinzip zum Aufbau von [n.n]Paracyclophanen unter Nicht-Verdünnungsbedingungen. Die Reaktion von 1b mit 4-Phenyl-4H-1,2,4-triazol-3,5-dion (5a) führt zum [4.4]Triazolopyridazindionophan 6; die analoge Reaktion mit Diethyl-diazendicarboxylat (5b) ergibt das Tetracyclohenicosatrienon 7.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 125 (1992), S. 31-35 
    ISSN: 0009-2940
    Keywords: Cyclopentadienyl ligand, doubly bridged ; Cyclopentadienyl complexes, trinuclear ; Polymers, organometallic ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Metal complexes that are derived from the doubly bridged cyclopentadiene system 2,2,8,8-tetramethyl-2,8-disilatricyclo[7.3.0.03,7] dodeca-3,5,9,11-tetraene (LH2) are investigated. The dilithio salt of this compound (LLi2) reacts with (Me3Si)3-C5H2FeCl to give, amongst other products, the trinuclear ferrocene [(Me3Si)3C5H2FeL]2Fe (2). A starting material well suited for the selective preparation of similar trinuclear complexes is the mononuclear ferrocene (HL2)Fe (3) which is formed by reaction of HLLi with iron(II) chloride. Reaction of dilithiiated 3 with trimethyltin chloride yields (Me3SnL)2Fe (4). Cocomplexation of dilithiated 3 and Cp*Li (Cp*=C5Me5) with iron(II) chloride leads to the trinuclear ferrocene (Cp*FeL)2Fe (5). By reaction of 3 with octacarbonyldicobalt the heterometallic complex [(CO)2CoL]2Fe (6) is obtained, which yields [(CO)I2CoL]2Fe (7) by oxidative decarbonylation with iodine. The stereochemistry of the complexes presented is discussed. The trinuclear complexes 2, 5, 6, and 7 are model systems for organometallic polymers with spatially directed structures, whose stability even in mixed-valence states is evidenced by the mass spectra of these complexes.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 128 (1995), S. 481-485 
    ISSN: 0009-2940
    Keywords: Cyclopentadienyl ligands, functionalised ; Hemilabile ligands ; Cyclopentadienes, pyridyl-functionalised ; Ferrocenes, pyridyl-functionalised ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Lithiated 2-methylpyridine reacts with 2,3,4,5-tetramethylfulvene (TMF) to give 2-[2-(2,3,4,5-tetramethylcyclopenta-1,4-dien-1-yl)ethyl]pyridine (2H) after aqueous work-up. Similarly, a mixture of 2-methyl-6-[2-(2,3,4,5-tetramethylcyclopenta-1,4-dien-1-yl)ethyl]pyridine (3H) and 2,6-bis[2-(2,3,4,5-tetramethylcyclopenta-1,4-dien-1-yl)ethyl]pyridine (4H2) was obtained from monolithiated 2,6-dimethylpyridine and TMF. All three compounds were obtained as a roughly statistical mixture of double-bond isomers. 2-Lithiopyridine reacts with 2,3,4,5-tetramethylcyclopent-2-enone to yield 2-(2,3,4,5-tetramethylcyclopenta-1,3-dien-1-yl)pyridine (5H) after acidic work-up. This compound was obtained as a non-statistical mixture of double-bond isomers, which is presumably due to intramolecular hydrogen-bond interactions. The lithiated derivatives 2Li, 3Li and 5Li react with iron(II) chloride to afford the respective ferrocenes (2)2Fe (8), (3)2Fe (9) and (5)2Fe (10). The structure of 10 was determined by a single-crystal X-ray diffraction study. The cyclopentadienyl ligands adopt a staggered conformation; the pyridyl rings are arranged in a stacked fashion with the closest ring-ring contact being 3.16 Å. The distance between the iron atom and the cyclopentadienyl ring centroids is 1.66 Å.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...