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  • Inorganic Chemistry  (86)
  • Cell & Developmental Biology  (5)
  • 2000-2004
  • 1990-1994  (52)
  • 1980-1984  (37)
  • 1950-1954  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Dispiro-1,2,4-trioxolane durch Ozonolyse von Cycloalkylidencycloalkanen auf Polyethylen (1991)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 124 (1991), S. 391-396 
    Details
    ISSN: 0009-2940
    Keywords: Ozonolysis ; Cycloalkylidenecycloalkanes ; Dispiro-1,2,4-trioxolanes ; Thermolysis ; Photolysis ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Dispiro-1,2,4-trioxolanes by Ozonolysis of Cycloalkylidenecycloalkanes on PolyethyleneOzonolyses of symmetrical (1b - d) and of unsymmetrical cycloalkylidenecycloalkanes (8a, b) afforded the dispiro-1,2,4-trioxolanes 4b - d and 9a, b, respectively. Their thermal decompositions gave mixtures of the cyclic ketones (3) and lactones (6). Photolyses afforded in addition to 3 and 6 the cyclic anhydrides 13, which are isomeric with the corresponding dispiro-1,2,4-trioxolanes.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19911240224
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  • 2
    Electronic Resource
    Electronic Resource
    Die Kristallstruktur von BaHg(CN)4 · 4 PyridinProfessor Walter Rüdorff zum 75. Geburtstage am 3. Oktober 1984 gewidmet (1984)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 516 (1984), S. 30-34 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal Structure of BaHg(CN)4 · 4 PyridineThe structure of the tetragonal BaHg(CN)4 · 4 Pyridine (space group I4, a = 1119.4(7), c = 1 057.9(7) pm, Z = 2, dc = 1.87 g · cm-3) contains tetrahedral Hg(CN)4 and bisdisphenoide Ba(NC)4(py)4 groups, which are linked together by Hg—CN—Ba bridges. The BaHg(CN)4 framework consists of a 3-dimensional network of all round edge-sharing tetrahedrons. The analogous strontium compound is isotype with a = 1 108.2(9) and c = 1 035.3(14) pm.
    Notes: In der Struktur des tetragonalen BaHg(CN)4 · 4 Pyridin (Raumgruppe I4, a = 1119,4(7), c = 1 057,9(9) pm, Z = 2, dc = 1,87 g · cm-3) sind tetraedrische Hg(CN)4- und bisdisphenoide Ba(NC)4(py)4-Gruppen über Hg—CN—Ba-Brücken zu einem Raumnetz verknüpft. Dem BaHg(CN)4-Gerüst liegt ein Aufbau aus allseitig eckenverknüpften Tetraedern zugrunde. Die analoge Strontium-Verbindung ist isotyp mit a = 1 108,2(9) und c = 1 035,3(14) pm.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19845160905
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  • 3
    Electronic Resource
    Electronic Resource
    Antitumor-aktive cis-Platin(II)-Komplexe mit α-Aminosäureestern und Peptidestern. Struktur von cis-Dichlorobis(glycylglycin-ethylester)platin(II) (1982)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 115 (1982), S. 2256-2270 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Antitumor Active cis-Platinum(II) Complexes with α-Amino Acid Esters and Peptide Esters. X-Ray Structure of cis-Dichlorobis(glycylglycine ethyl ester)platinum(II)A series of cis-platinum(II) complexes X2PtL2 (1-4) (X = halide, 2X = oxalate, malonate; L = α-amino acid ester, peptide ester) has been obtained from Pt42- and L. The dipeptide ester complexes are also accessible via peptide synthesis at the complex from Cl2Pt(NH2CHRCO2H)2 and α-amino acid esters using carbodiimide as coupling agent and the platinum atom as amino protecting group. The complexes Cl2PtL2 with α-amino acid ester ligands have also been prepared from the bis(chelate) compounds cis-Pt(NH2CHRCO2)2 and alcohol in the presence of HCl. The complexes have been characterized by their spectroscopic data, cis-Cl2Pt(GlyGlyOEt)2 (2a) by an X-ray analysis.
    Notes: Eine Reihe von cis-Platin(II)-Komplexen X2PtL2(1-4) (X = Halogenid, 2X = Oxalat, Malonat; L = α-Aminosäureester, Peptidester) wird aus PtX42- und L erhalten. Entsprechende Komplexe mit Dipeptidester-Liganden sind auch durch Peptidsynthese am Komplex aus Cl2Pt-(NH2CHRCO2H)2 und α-Aminosäureestern mit Carbodiimid als Kupplungskomponente und Platin als Aminoschutzgruppe zugänglich. Die Verbindungen Cl2PtL2 mit α-Aminosäureester-Liganden lassen sich auch aus den Bis(chelat)-Komplexen cis-Pt(NH2CHRCO2)2 und Alkohol in Gegenwart von HCl gewinnen. Die cis-Struktur der Verbindungen wurde spektroskopisch, die von Cl2Pt(GlyGlyOEt)2 (2a) durch Röntgenstrukturanalyse nachgewiesen.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19821150621
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  • 4
    Electronic Resource
    Electronic Resource
    Platin(II)-Komplexe von vinylogen Aminoisocyaniden (1983)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 116 (1983), S. 3205-3211 
    Details
    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 of Vinylogous Amino IsocyanidesIsocyanide platinum(II) complexes trans-[(Ph3P)2LPtCl]+Cl- (2) (L = vinylogous aminoisonitrile are formed from cis-(Ph3P)2PtCl2 and L; the cations of 2 have been isolated as PF6- salts (3). At higher temperatures the salts 2 give the neutral complexes cis-(Ph3P)LPtCl2 (4) and PPh3. Treatment of 4 with amines HNR2R3 affords the diaminocarbene complexes cis-[(Ph3P)[(R1R3N)C]PtCl(amine)]+Cl- (isolated as PF6- salts 5) which on heating give the compounds cis-(Ph3P)[R1HN)(R2R3 N)C]PtCl2 (7).
    Notes: Isocyanid-Platin(II)-Komplexe trans-[Ph3P)2LPtCl]+Cl- (2) (L = vinyloges Aminoisonitril entstehen aus cis-Ph3P)2PtCl2 und L; sie werden als stabile PF6--Salze (3) isoliert. Die Verbindungen 2 spalten beim Erhitzen Ph3P ab unter Bildung der neutralen Komplexe cis-(Ph3P)LPtCl2 (4), die sich mit Aminen HNR2R3 zu den Diaminocarben-Komplexen cis-(Ph3P)[R1HN)(R2R3 N)C]PtCl(amine)+Cl2 (7) umsetzen, wobei als Zwischenstufen ionische Verbindungen [(Ph3P)[R1HN)(R2R3N)C]PtCl(amin)] +PF6- (5) gefaßt wurden.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19831160918
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  • 5
    Electronic Resource
    Electronic Resource
    Dichloropalladium(II)-Komplexe mit α-Aminosäuren, α-Aminosäureestern, Dipeptiden und Dipeptidestern (1984)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 117 (1984), S. 1003-1012 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Dichloropalladium(II) Complexes with α-Amino Acids, α-Amino Acid Esters, Dipeptides, and Dipeptide EstersA series of trans-dichloropalladium(II) complexes Cl2PdL2 (L = α-amino acid, α-amino acid ester, dipeptide, dipeptide esters) and cis-Cl2Pd(histidine) has been prepared and spectroscopically characterized. The X-ray structure of trans-Cl2Pd(GlyOEt)2 (3b) has been determined.
    Notes: Eine Reihe von trans-Dichloropalladium(II)-Komplexen Cl2PdL2 mit (L = α-Aminosäure, α-Aminosäureester, Dipeptid, Dipeptidester) sowie cis-Cl2Pd(Histidin) wurde dargestellt und spektroskopisch charakterisiert. Die Röntgenstruktur von trans-Cl2Pd(GlyOEt)2 (3b) wurde bestimmt.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19841170314
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  • 6
    Electronic Resource
    Electronic Resource
    Reaktive Platin-Komplexe mit α-Aminosäurederivaten und ihre P- und N-Kernresonanzspektren (1984)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 117 (1984), S. 1241-1245 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Reactive Platinum Complexes with α-Amino Acid Derivatives and their 31P- and 15N Nuclear Magnetic Resonance SpectraThe α-amino acidate chelate complexes (n-Bu3P)(Cl)⊓PtNH2CH(R)COO (1a - c) (R = H, CH3, CHMe2) react with thionyl chloride, phosphorus pentachloride, or acetyl chloride by cleavage of the chelate ring to give complexes with α-amino acyl chloride or acetic glycine anhydride as ligands: (n-Bu3P)Cl2Pt(NH2CH2COCl) (2), (n-Bu3P)Cl4Pt(NH2CH(CHMe2)COCl) (6), (n-Bu3P)-Cl2Pt(NH2CH2CO(O)OCCH3) (4). Using 15N enriched amino acids, the IR, 15N and 31P NMR spectra indicate cis orientation of phosphane and amino groups in all these complexes.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19841170336
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  • 7
    Electronic Resource
    Electronic Resource
    Cycloaddition von Amino-, Phosphino- und Thionitrilen sowie Phosphinoisocyaniden an die Azido-Liganden planarer Rhodium(I)-, Iridium(I)-, Palladium(II)- und Platin(II)-Verbindungen: Tetrazolyl-Chelatkomplexe (1983)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 116 (1983), S. 3867-3876 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Cycloaddition of Amino-, Phosphino-, Thionitriles, and Phosphinoisocyanides to the Azide Ligands of Planar Rhodium(I), Iridium(I), Palladium(II), and Platinum(II) Complexes: Tetrazolyl Chelate ComplexesAmino-, phosphino-, and thionitriles are added by 1,3-cycloaddition to the azide ligands of planar RhI, IrI, PdII, and PtII, compounds to give the 5-R-tetrazolato complexes 2-8. Using 2-pyridinecarbonitrile, (2-cyanoethyl)diphenylphosphane, (2-cyanophenyl)diphenylphosphane or (2-isocyanoethyl)diphenylphosphane new chelate complexes 9, 10, 12-15, 17 have been obtained via cycloaddition and bonding of the pyridine N-atom or the diphenylphosphino group, respectively, to the metal atom.
    Notes: Amino-, Phosphino- und Thionitrile werden an die Azidliganden planarer d8-Verbindungen von PdII, PtII, RhI und IrI unter Bildung von 5-R-Tetrazolato-Komplexen 2-8 addiert. Neuartige Chelat-Komplexe 9, 10, 12-15, 17 werden mit 2-Pyridincarbonitril, (2-Cyanethyl)diphenylphosphan, (2-Cyanphenyl)diphenylphosphan bzw. (2-Isocyanethyl)diphenylphosphan erhalten, wobei Cycloaddition und Bindung des Pyridin-N-Atoms bzw. der Diphenylphosphinogruppe an das Metall erfolgt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19831161210
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  • 8
    Electronic Resource
    Electronic Resource
    Metallorganische Lewis-Säuren, XV1). Cyclodimerisierung von 2-Butin und 2-Pentin an Pentacarbonyl-(tetrafluoroborato)rhenium zu einem koordinierten Methylencyclobuten-Derivat (1984)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 117 (1984), S. 3169-3174 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Organometallic Lewis Acids, XV1). Cyclodimerization of 2-Butyne and 2-Pentyne at Pentacarbonyl(tetrafluoroborato)rhenium to a Coordinated Methylenecyclobutene DerivativeThe reactions of pentacarbonyl(tetrafluoroborato)rhenium, (OC)5ReFBF3 (1a), with 2-butyne and 2-pentyne give the methylenecyclobutene complexes [(CO)5Re(C8H12)]+BF4- (2) and [(CO)5Re(C10H16)]+BF4- (3). From 2, 3 the methylenecyclobutene ligands can be liberated by halide ions.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19841171017
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  • 9
    Electronic Resource
    Electronic Resource
    Bindung von Monosacchariden über die Isocyano- und Carben-Funktion an das Metall-Atom: Chrom(0), Wolfram(0)-, Rhodium(III)-, Iridium(III)-, Palladium(II)-, Platin(II)- und Gold(I)-Komplexe von 1,3,4,6-Tetra-O-acetyl-2-desoxy-2-isocyano-α-D-glucose und - β-D-glucose (1990)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 123 (1990), S. 11-17 
    Details
    ISSN: 0009-2940
    Keywords: Isocyanide complexes / Carbene complexes / Transition metal complexes / Carbohydrates / Glucose, 2-deoxy-2-isocyano-, as complex ligand ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Metal-Complexes of Biologically Important Ligands, LII. - Binding of Monosaccharides through the Isocyano and Carbene Group to the Metal Atom: Chromium(O), Tungsten(O), Rhodium(III), Iridium(1II). Palladium(I1). Platinum(ZI), and Gold(1) Complexes of 1.3.4.6-Tetra-O-acetyl-2-deoxy-2-isocyano-α-D-glucose and -β-D-glucoseStable isocyanide complexes cis-Cl2Pd(CNR)2 (2), cis-Cl2Pt(CNR)2 (3), cis-Cl2Pt(PPh3)CNR (4), [trans-(Ph3P)2Pt(Cl)CNR]+BF-4 (5), ClAuCNR (6), (OC)5CrCNR (7), (OC)5WCNR (8), (η5-C5Me5)Rh-(CNR)Cl2 (9), (η5-C5Me5)Ir(CNR)Cl2 (10) of 1,3,4,6-tetra-O-acetyl-2-deoxy-2-isocyano-α(β)-D-glucose (CNR) as well as carbene complexes ClAuC(NHR')(NHR) (11, 12) and cis-Cl2Pt(PPh3)C-(OR')NHR (13, 14) have been prepared and characterized by their IR and NMR spectra. The structure of 10 has been determined by X-ray crystal structure analysis.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19901230104
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  • 10
    Electronic Resource
    Electronic Resource
    Kohlenwasserstoffverbrückte Metallkomplexe, XVIII. Heterometallische Ethylen-verbrückte Komplexe (OC)5ReCH2CH2Mn(CO)5, (OC)5ReCH2CH2Ru(CO)2Cp, (OC)5ReCH2CH2Os(CO)4CH2CH2Re(CO)5 und (OC)5ReCH2CH2CH2Os(CO)4Os(CO)4(CO)4Os(CO)4CH2CH2Re(CO)5 (1991)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 124 (1991), S. 1059-1063 
    Details
    ISSN: 0009-2940
    Keywords: Ethylene-bridged metal complexes ; Ethanediyl complexes ; Manganese, Rhenium, Ruthenium, Osmium carbonyls ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Hydrocarbon-Bridged Metal complexes, XVIII. - Heterometallic Ethylene-Bridged Complexes (OC)5ReCH2CH2Mn(CO)5, (OC)5ReCH2CH2Ru(CO)2Cp, (OC)5ReCH2CH2Os(CO)4CH2CH2Re(CO)5 and (OC)5ReCH2CH2CH2Os(CO)4Os(CO)4(CO)4Os(CO)4CH2CH2Re(CO)5Addition of [(OC)5Re(C2H4)]+ to the carbonylmetallates [Mn(CO)5]-, [RuCp(CO)2]-, [Os(CO)4]2-, [Os3(CO)12]2- affords the title complexes in a directed way. The dynamic behaviour of (OC)5ReCH2CH2Mn(CO)5 in solution is attributed to a dyotropic exchange of the pentacarbonylmetal groups on the CH2CH2 bridge.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19911240512
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