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  • 1970-1974  (30)
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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 104 (1971), S. 528-532 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: A Simple Pathway to Azide-Bridged Palladium and Platinum(II) ComplexesSalts of azide-bridged dimeric cations are prepared in quantitative yields by reaction of the monomeric diazido complexes (Ph3P)2 M(N3)2 with nitrosyl- or triethyloxonium salts, and diethyl sulfate, respectively.
    Notes: Salze der azidverbrückten dimeren Kationen entstehen in praktisch quantitativer Ausbeute durch Umsetzung der monomeren Diazidokomplexe (Ph3P)2 M(N3)2 mit Nitrosyl- oder Triäthyloxonium-Salzen bzw. mit Diäthylsulfat.
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 105 (1972), S. 3209-3214 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: New Azide Bridged d-Transition Metal ComplexesThe azide bridged cations [(diphos)Ni(N3)2Ni(diphos)]2+, [Ph3P)2(CO)MN3M(CO)(PPh3)2]+ are obtained from the monomeric azido complexes (diphos)Ni(N3)2 and (Ph3P)2M(CO)N3 (M = Rh, Ir) respectively with nitrosyl and triethyloxonium salts. In the rhodium- and iridium(I)compounds, accessible also from (Ph3P)2M(CO)N3 and [(Ph3P)2M(CO)(NH2CO2Et)]+ BF4-, two transition metal atoms are bridged by only one azide ligand.
    Notes: Die azidverbrückten Kationen [(diphos)Ni(N3)2Ni(diphos)]2+, [Ph3P)2(CO)MN3M(CO)-(PPh3)2]+werden aus den monomeren Azido-Komplexen(diphos)Ni(N3) 2bzw.(Ph3P)2M(CO)N3 (M = Rh, Ir) mit Nitrosyl- oder Triäthyloxoniumsalzen erhalten. In den Rhodium- und Iridium(I)-Verbindungen, die auch aus (Ph3P)2M(CO)N3 und [(Ph3P)2M(CO)(NH2CO2Ät)]+ BF4- zugänglich sind, werden zwei Übergangsmetallatome nur über eine N3-Gruppe verbunden.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 103 (1970), S. 3591-3604 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: New Complex Metal FulminatesThe preparation and infrared spectra of non explosive, thermally stable tetraphenyiarsonium or tetraalkylammonium salts of the fulminate complexes [Ru(CNO)6]4-, [OsO2(CNO)4]2-, [Rh(CNO)6]3-, [Ir(CNO)6]3-, [Zn(CNO)4]2-, [Cd(CNO)4]2- are described. Other anions, e. g. [M(CNO)4]2 (M = NiII, PdII, PtII). [(M(CNO)2]- (M = AgI, AuI) are also stabilisized by large cations. (R3P)2\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm M}\limits^{{\rm + 2}} $\end{document}(CNO)2 (M = Pd, Pt) and [AsPh4][A\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm u}\limits^{{\rm + 1}} $\end{document}(CNO)2] react with bromine or iodine to give the „mixed“ complexes (R3P)2\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm M}\limits^{{\rm + 4}} $\end{document}(CNO)2X2 and [AsPh4]-[A\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm u}\limits^{{\rm + 3}} $\end{document}(CNO)2X2], respectively (X = Br, J). Irradiation of the hexacarbonyls M(CO)6 (M = Cr, Mo, W) in the presence of fulminate ion in THF yields difulminatotetracarbonylmetallates(O), cis-[M(CO)4(CNO)2]2-, which are the first examples of fulminato complexes containing the metal in a low oxidation state.
    Notes: Die Darstellung und IR-Spektren von nicht explosiven, thermisch recht stabilen Tetraphenyl-arsonium- oder Tetraalkylammonium-Salzen der Fulminato-Komplexe [Ru(CNO)6]4-, [OsO2(CNO)4]2-, [Rh(CNO)6]3--, [Ir(CNO)6]3-,- [Zn(CNO)4]2-, [Cd(CNO)4]2- werden be-schrieben. Auch andere Fulminatometallat-Anionen wie [M(CNO)4]2- (M = NiII, PdII, PtII), [M(CNO)2]- (M = AgI, AuI) lassen sich durch großvolumige Kationen stabilisieren. Die Verbindungen (R3P)2\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm M}\limits^{{\rm + 3}} $\end{document}(CNO)2 (M = Pd, Pt) sowie [AsPh4][A\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm u}\limits^{{\rm + 1}} $\end{document}(CNO)2] reagieren mit Brom oder Jod unter oxydativer Addition des Halogens zu den „gemischten“ Komplexen (R3P)2\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm M}\limits^{{\rm + 4}} $\end{document}(CNO)2X2 bzw. [AsPh4][A\documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm u}\limits^{{\rm + 3}} $\end{document}(CNO)2X2] (X = Br, J). Bei der photochemischen Umsetzung der Hexacarbonyle von Chrom, Molybdän und Wolfram mit dem Fulminat-Ion in THF entstehen die Difulminatotetracarbonylmetallate(0), cis-[M(CO)4(CNO)2]2-, als erste Vertreter von Fulminato-Komplexen mit niedriger Oxydationszahl des Metalls.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 104 (1971), S. 2901-2907 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Carbonylation Reactions of Isocyanato- and Azidopalladium(II) and -platinum(II) ComplexesIsocyanato complexes (Ph3P)2M(NCO)2 (M = Pd, Pt) react with CO and alcohols (MeOH, EtOH) to give carbamic ester and alkoxycarbonyl complexes [(Ph3P)2M(NCO)(CO2R). The reaction of the azide and isocyanate bridged complexes [(Ph3P)2PtX2Pt(PPh3)2]2+[BF4-]2 (X= N3 NCO) with CO in CH2Cl2 yields [(Ph3P)2Pt(CO)(NCO)]+BF4-; this complex affords with CO and alcohol [(Ph3P)2Pt(CO)(CO2R)]+BF4-. Some reactions of the cation [(Ph3P)2Pt(CO)(CO2R)]+ are reported.
    Notes: Die Isocyanato-Komplexe (Ph3P)2M(NCO)2 (M = Pd, Pt) reagieren mit CO und Alkoholen (MeOH, ÄtOH) unter Bildung von Carbamidsäureester zu Alkoxycarbonyl-Verbindungen (Ph3P)2M(NCO)(CO2R) (R = Me, Åt). Bei der Umsetzung der azid- bzw. isocyanat verbrückten Komplexe [(Ph3P)2PtX2Pt(PPh3)2]2+[BF4-]2 (X = N3, NCO) mit CO entsteht [(Ph3P)2Pt(CO)(NCO)]+BF4-; dieser Komplex setzt sich mit CO und Alkohol zu [(Ph3P)2Pt(CO)(CO2R)]+BF4- um. Einige Reaktionen des Kations [(Ph3P)2Pt(CO)(CO2R)]+ werden beschrieben.
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 105 (1972), S. 3203-3208 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Pyrazolato and Tetrazolato Metal Carbonyl Complexes of Chromium(0), Molybdenum(0) and Tungsten(0)Reaction of sodium pyrazolate with the hexacarbonyls of molybdenum and tungsten affords dimeric, pyrazolate bridged tetracarbonyl complexes [(CO)4ML2M(CO)4]2-. 5-Substituted tetrazolate ions however are monodentate ligands yielding monomeric anionic pentacarbonyl metalates [M(CO)5L]-. The i. r. and n. m. r. spectra are discussed.
    Notes: Natriumpyrazolat reagiert mit den Hexacarbonylen von Molybdän und Wolfram unter Bildung dimerer Tetracarbonylmetallat(0)-Komplexe [(CO)4ML2M(CO)4]2- mit Pyrazolato-brücken. 5-Substituierte Tetrazolylanionen treten dagegen als einzähnige Liganden auf; sie setzen sich mit den Metallhexacarbonylen thermisch zu einkernigen Pentacarbonylmetallaten(0), [M(CO)5L]-, um.
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 106 (1973), S. 1781-1788 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Platinum(II) Complexes with Activated Amino Acid Esters and Reactions of the N-Protected LigandsThe compounds trans-X2Pt(NH2CH2CO2H)2 (X=Cl, Br) yield with substituted phenols and dicyclohexylcarbodiimide as coupling agent complexes 1 and 2 with activated amino acid ester ligands. Reaction of these N-coordinated ligands with nucleophiles, e. g. NH3, amines, glycine esters, leads to a number of derivatives. In these reaction platinum(II) acts as N-terminal protecting group.
    Notes: Die Verbindungen trans-X2Pt(NH2CH2CO2H)2 (X=Cl, Br) setzen sich mit substituierten Phenolen und Dicyclohexylcarbodiimid als Kupplungsreagens zu Komplexen 1 und 2 mit aktivierten Aminosäureestern um. Durch Reaktion an diesen N-koordinierten Liganden mit Nucleophilen, wie NH3, Aminen, Glycinestern, wird eine Reihe von Derivaten erhalten. Bei diesen Reaktionen wirkt Platin(II) als N-terminale Schutzgruppe.
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 107 (1974), S. 1380-1388 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions of trans-Difulminatobis(triphenylphosphine)platinum(II)The thermally very stable fulminato complex (Ph3P)2Pt(CNO)2 (1) rearranges under mild conditions to the isomeric isocyanato complex (Ph3P)2Pt(NCO)2 in the presence of organic carbonyl compounds which act as catalysts. (Ph3P)2Pt(NCS)2 is obtained from 1 and organic thiocarbonyl compounds. 1 is reduced by phosphines to the corresponding cyanide trans-(Ph3P)2Pt(CN)2. The safe preparation of a number of fulminato complexes (R3E)2M(CNO)2 (M=Pd, Pt; E=P, As, sb), (Ph3P)2Pt(X)CNO (X + H, Me, CN, NCO), and (Ph3P)2Rh(CO)CNO by use of [AsPh4]CNO is reported.
    Notes: Das thermisch sehr stabile (PhP)2Pt(CNO)2 (1) läßt sich katalytisch in Gegenwart von organischen Carbonylverbindungen unter milden Bedingungen zur Isocyanatoverbindungen (Ph3P)2Pt(NCO) 2 isomerisieren. 1 liefert mit organischen Thiocarbonylverbindungen (Ph3P)2Pt(NCS)2. Mit Phosphinen wird 1 zur entsprechenden Cyanoverbindung trans-(Ph3P)2Pt(CN)2 reduziert. Über die gefahrlose Darstellung verschiedener gemischter Fulminatokomplexe (R3E)2M(CNO)2 (M=Pd, Pt; E=P, As, Sb), (Ph3P)2Pt(X)CNO (X=H, Me, CN, NCO) und (Ph3P)2Rh(CO)CNO unter Verwendung von [AsPh 4]CNO wird berichtet.
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 106 (1973), S. 2590-2600 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions of Metal Carbonyls with AziridineThe photochemical or thermal reaction of the hexacarbonyls of chromium, molybdenum, and tungsten with aziridine (in) yields the complexes M(CO)6 ninn (n - 1, 2, 3). From the cis- bis(aziridin)tetracarbonylmetal compounds in the presence of protic solvents chelate complexes M(CO)4dün with N-(2-aminoethyl)aziridine (dün) as ligand, formed by reaction of two aziridine ligands, have been obtained. The preparation of π-CH3C5H4Mn(CO)2in and of (π-CH3C5H4)(CO)2Mn-dün-Mn(CO2(π-CH3C5H4) is reported. The structure and bonding of these complexes are discussed on the basis of the i. r. spectra.
    Notes: Die Hexacarbonyle von Chrom, Molybdän und Wolfram setzen sich photochemisch oder thermisch mit Aziridin (in) zu Komplexen M(CO)6-ninn (n = 1, 2, 3) um. Aus den cis-Bis(aziridin)tetracarbonylmetall-Verbindungen entstehen in Gegenwart von protischen Lösungsmitteln durch Reaktion zwischen zwei Aziridinliganden Tetracarbonylkomplexe M(CO)4dün mit dem N-(2-Aminoäthyl)aziridin-Chelatliganden (dün). Aus π-CH3C5Mn(CO)3 und in bzw. Dün werden die Verbindungen π-CH3C5H4Mn(CO)2in bzw. (π-CH3C5H4)-(CO)2Mn-dün- Mn(CO)2(π-CH3C5H4) erhalten. Die Struktur- und Bindungsverhältnisse in diesen Komplexen werden an Hand der IR-Spektren diskutiert.
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 107 (1974), S. 3476-3485 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Platinum as an Amino Protecting Group: Platinum (IV) Complexes with α-Aminoacyl ChloridesChlorination of the (α-amino acid)platinum(II) compounds trans- Cl2Pt(NH2CHRCO2H)2 and Cl2Pt(NH2CH(CO2H)CH2CH2SR) by PCl5 leads to the (aminoacyl chloride)platinum(IV) complexes 1 and 2. The oxidative addition of the coordinated N-protected amino acyl chloride in 1 and 2 to the platinum(0) compound (C2H4)Pt(PPh3)2 affords the chloro-α-aminoacyl complexes 3 and 6, respectively.
    Notes: Durch Chlorierung der (α-Aminosäure)platin(II)-Verbindungen trans-Cl2Pt(NH2CHRCO2H)2 und Cl2Pt(NH2CH(CO2H)CH2CH2SR) mit PCl5 werden die Aminosäurechlorid-Komplexe von Platin(IV) 1 und 2 erhalten. Die oxidative Addition der N-geschützten Aminosäurechlorid- Liganden in 1 und 2 an die Platin(0)-Verbindung (C2H4)Pt(PPh3)2 liefert die Chloro-α-aminoacyl-Komplexe 3 und 6.
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 104 (1971), S. 533-543 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Properties and Infrared Spectrum of Fulminic Acid, HCNOThe non-explosive fulminic acid is a considerably stronger acid than HCN (pKa ≦ 5;25°); its acid strength is similar to that of HN3. Infrared spectra of both HCNO and DCNO in the gas phase were determined: the assignment of the absorption bands is supported by the results of a normal coordinate analysis. The force constants for the linear formonitrile oxide H—C≡N—O are compared with those for related liner molecules, and the bonding in HCNO is discussed. The isosteric molecules HCNO and N2O have very similar valence force constants.
    Notes: Die nicht explosive Knallsäure ist eine wesentlich stärkere Säure als HCN (pKs ≦ 5;25°); ihre Säurestärke ist vergleichbar mit der von HN3. Die Infrarotspektren von gasförmigem HCNO und DCNO wurden aufgenommen; die Zuordnung der Absorptionen wird durch eine Normalkoordinatenanalyse gestützt. Die Kraftkonstanten des linearen Formonitriloxid-Moleküls H—C≡N—O werden mit denen ähnlicher Moleküle verglichen. Die isosteren Verbindungen HCNO und N2O zeigen sehr ähnliche Valenzkraftkonstanten.
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