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  • 1
    Electronic Resource
    Electronic Resource
    Metallkomplexe mit biologisch wichtigen Lisganden, LXXXIPart LXXX: Ref.. Synthese und Kristallstruktur von Rh(I)-Komplexen mit α-Aminocarboxylat-Liganden (1995)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 128 (1995), S. 1127-1130 
    Details
    ISSN: 0009-2940
    Keywords: Rhodium(I) ; α-Aminocarboxylate ; Crystal structure ; Hydrogen bonding ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Metal Complexes Containing Biologically Important Ligands, LXXXPart LXXX: Ref. .  -  Synthesis and Crystal Structure of Rhodium(I) Chelates with α-Amino Carboxylates Part LXXX: Ref.The α-amino carboxylate complexes were prepared from Rh(Cl)(CO)(PPh3)2 and H2NC(H)(R)CO2 in the presence of AgBF4 and characterized by X-ray diffraction. In the crystal the complexes form chains by hydrogen bridges between amino and carboxylate groups of adjacent molecules.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19951281111
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  • 2
    Electronic Resource
    Electronic Resource
    Metal Complexes of Biologically Important Ligands, LXXXVI. Organometallic Complexes of Ruthenium(II), Rhodium(III), Iridium(III), and Gold(I) with Cinchona AlkaloidsDedicated to Dr. Janina Altman on the occasion of her 65th birthday. (1996)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 129 (1996), S. 331-335 
    Details
    ISSN: 0009-2940
    Keywords: Quinine ; Cinchonidine ; Quinidine ; Chinchonine ; Ruthenium complexes ; Gold complexes ; Rhodium complexes ; Iridium complexes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The following chiral organometallic complexes of the cinchona alkaloids quinine (L1), cinchonidine (L2), quinidine (L3), cinchonine (L4) were prepared: [(η5-C5H5)(Ph3P)(OC)-Ru(L)]BF4 (1: L=L1; 2: L=L2; 3: L=L3), ClAuL1 (4), [(η5-C5Me5)(Cl2)Ir(L)] (5: L=L1; 6: L=L2; 7: L=L4), [(η5-C5Me5)(Cl2)Rh(L2)] (8), [(η6-p-cymene)(Cl2)Ru(L)] (9: L=L1; 10: L=L2; 11: L=L4). In all complexes the tertiary nitrogen atom of the cinchona alkaloids is bound to the metal. Complexes 5 - 11 are formed as mixtures of isomers. Elimination of HCl from 10 and 11 gives the neutral N,O-chelate complexes (η6-p-cymene)(Cl)Ru(L2 - H+) (13) and (η6-p-cymene)-(Cl)Ru(L4 - H+) (14) which were structurally characterized by X-ray diffraction.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19961290314
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  • 3
    Electronic Resource
    Electronic Resource
    Metallkomplexe mit biologisch wichtigen Liganden. XCII. Hydridotrispyrazolylborato-Rhodium(III)-Komplexe mit α-Aminosäure-Anionen und PeptidenProfessor Joachim Strähle zum 60. Geburtstag gewidmet (1997)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 623 (1997), S. 665-675 
    Details
    ISSN: 0044-2313
    Keywords: Hydridotrispyrazolylborate ; α-Aminocarboxylate ; Peptides ; Rhodium(III) Complexes ; X-ray diffraction ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Metal Complexes of Biologically Important Ligands. XCII, [1]. Hydridotrispyrazolylborato Rhodium(III) Complexes of α-Amino Carboxylates and PeptidesChiral chelate rhodium complexes Tp(Cl)RhNH2C(H)(R)CO2 and Tp*(Cl)RhNH2C(H)(R)CO2 (Tp = hydridotrispyrazolylborate, Tp* = hydridotris(3,5-dimethylpyrazolylborate)) were prepared and the ratio of diastereoisomers was determined. The diastereoisomers are remarkably stable towards eperimization. The reaction of [TpRhCl2]2 with glycineamide gives the ionic complex [Tp(Cl)Rh(NH2CH2CONH2)2]+ [TpRhCl3]- (15), whereas the reaction of Tp*Rh(Cl)2(HOMe) with glycine amide and di- and triglycine esters in the presence of NaOMe affords the neutral complexes 16-24, Tp*(Cl)2Rh(NH2CH2CONHR), Tp*(Cl)Rh(NH2CH2NR) and Tp*(Cl)Rh(NH2CH2CONCH2CONCH2CO2Me), respectively. Amidine complexes (25, 26) were obtained from TpRh(Cl)2(NCMe) and glycyl glycine esters by nucleophilic attack of the amino group to the carbon atom of coordinated acetonitrile. The structures of Tp*(Cl)Rh(L-alaO), Tp*(Cl)Rh(L-trpO), 15 and 25 were determined by X-ray diffraction.
    Notes: Die chiralen Rhodium-Komplexe Tp(Cl)RhNH2C(H)(R)CO2 und Tp*(Cl)RhNH2C(H)(R)CO2 (Tp = Hydridotrispyrazolylborat, Tp* = Hydridotris(3,5-dimethylpyrazolylborat)) wurden hergestellt und das Verhältnis der Diastereoisomeren wurde bestimmt. Die Diastereoisomeren sind bemerkenswert stabil gegenüber Epimerisierung. Die Reaktion von [TpRhCl2]2 mit Glycinamid liefert den ionischen Komplex [Tp(Cl)Rh(NH2CH2CONH2)2]+ [TpRhCl3] (15), während die Umsetzung von Tp*Rh(Cl) 2 (HOMe) mit Glycinamid und Di- und Triglycinestern die neutralen Verbindungen 16-24 ergibt. Amidin-Komplexe (25, 26) entstehen aus TpRh(Cl) 2 (NCMe) und Glycylglycinestern durch nucleophilen Angriff der Aminogruppe am Kohlenstoffatom des koordinierten Acetonitrils. Die Kristallstrukturen von Tp*(CI)Rh(L-alaO), Tp*(Cl)Rh(L-trpO) sowie von 15 und 25 wurden durch Röntgenbeugung bestimmt.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.199762301106
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