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Synthese und Struktur oxoverbrückter, M(CO)5 geschützter Hexa-Germanium-Käfigverbindungen /Synthesis and Structure of Oxo-Bridged, M (CO)5 Protected Hexagermanium Cage Compounds
-
Gerd Renner
und
Peter Rutsch
Veröffentlicht/Copyright:
2. Juni 2014
Abstract
Na2[M2(CO)10] and GeCl4 react to give the compounds [(CO)5MGeCl3]- , 1a - 1c (M = Cr, Mo, W). From M(CO)5·THF and Gel2 in the presence of I- compounds [(CO)5MGeI3]-, 2a - 2c (M = Cr, Mo, W) are obtained. Compounds 2a and 2c react with alkoholates or thiolates to produce the cage compounds [{(CO )5Cr}6Ge6(μ2-OH )2(μ3- O)6]2-, 3, [{(CO)5Cr}6Ge6 - (μ2-OEt)2(μ2-O)4(μ3-O)2]2- , 4, and [{(CO)5W }6Ge6(OR)2(μ2- O)2(μ3-O)4]2- , 5. A structural pattern common to all these compounds is an idealised octahedral arrangement of six germanium atoms. Each of these six germanium atoms binds to an M(CO)5 protective group. The germanium atoms are integrated in the core of the cage compounds by μ3-O , μ2-O and μ2-OH bridges. The co-ordination number of germanium is generally four, with one bond radiating to the external M(CO)5 building block. In compounds 3 and 4 the remaining three germanium bonds radiate to the bridging groups within the cage. Compounds 5 contain two germanium centres which are linked to the cage by only two bonds and with the two remaining bonds to the external M(CO)5 entity and to a terminal OR or SR group. Syntheses and structures of compounds 1 - 5 are described.
Received: 2001-8-6
Published Online: 2014-6-2
Published in Print: 2001-12-1
© 1946 – 2014: Verlag der Zeitschrift für Naturforschung
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Artikel in diesem Heft
- Neue Oxogermanate(IV) der schweren Alkalimetalle. Synthesen und Kristallstrukturen/New Oxogermanates(IV) of the Heavy Alkaline Metals. Preparation and Crystal Structure
- Thiolate Complexes of Gold(I) Based on a Tris(phosphine) Support
- New Coordination Compounds Derived from Nitrone Ligands: Copper(II) Complexes with 8-Hydroxyquinoline-2-carbaldehyde- and Pyridine-2-carbaldehyde-N-methylnitrones
- Metallkomplexe mit biologisch wichtigen Liganden, CXL. Halbsandwich-Komplexe von Ruthenium(II), Rhodium(III), Iridium(III) sowie Palladium(II)-und Platin(II)-Komplexe mit N,O-Chelaten von Fluor-und Thiophen-haltigen α-Aminosäuren/Metal Complexes of Biologically Important Ligands, CXL. Halfsandwich Complexes of Ruthenium(II), Rhodium(III), Iridium(III) and Palladium(II), Platinum(II) Complexes with N, O-Chelates of Fluorine and Thiophene Containing α-Amino Acids
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- Borane Activators for Nickel Catalysts for Olefin Polymerization
- Carbonyl(diphenylcyclopentadienyl)-und Carbonyl(tetraphenylcyclopentadienyl)rhodium(I) Komplexe/Carbonyl(diphenylcyclopentadienyl)-and Carbonyl(tetraphenylcyclopentadienyl)rhodium(I) Complexes
- Synthesis, Characterization and Molecular Structure of 2-Pyridyl-formamide N(4)-Dimethylthiosemicarbazone and Some Five-Coordinated Zinc(II) and Cadmium(II) Complexes
- Effect of a Thermal Treatment on the Activity of Carbon-Supported Pt, Pt+W and Pt+Mo Electrocatalysts for Methanol Oxidation Reactions
- The Synthesis and Crystal Structure of a Dinuclear μ-Pyrazolato-N,N'-Bridged Dinickel(II) Complex of 1,3-Bis(2-hydroxy-4-methoxybenzylideneamino)propan-2-ol
- Improved Synthetic Route to Unsymmetrically Substituted Phosphinimino-phosphonium Salts. Crystal Structure of Tri-n-butyl- [tris(diethylamino)phosphinimino]phosphonium Chloride
- Na2ZrSe3, ein neues Chalcogenometallat(IV) mit Schichtstruktur/Na2ZrSe3, a New Chalcogenometallate(IV) with a Layered Structure
- Bildung und Struktur von Tris(diphenylstibino)amin/Formation and Structure of Tris(diphenylstibino)amine
- Synthese und Struktur oxoverbrückter, M(CO)5 geschützter Hexa-Germanium-Käfigverbindungen /Synthesis and Structure of Oxo-Bridged, M (CO)5 Protected Hexagermanium Cage Compounds
- The Gold Sulfates MAu(S04)2 (M = Na, K, Rb)
- CD-Spectroscopic Investigations for the Determination of the Absolute Configuration of (4R,6S,7S)-Serricomin
- Electrolysis of Tetrakis(4-N,N-dimethylammophenyl)methane -Fragmentation of a Tetraarylmethane under Oxidative Conditions
- The Chemical Evolution of a Nitrogenase Model, XXIY. Correlational Analysis of Effects of Organic Acids on in vitro MoFe-Protein Substrate Reduction Activities
- Elektrostatische Aktivierung der SNAr-Reaktivität durch Sulfonyloniosubstituenten/Electrostatic Activation of SNAr-Reactivity by Sulfonylonio Substituents
- Formation and Crystal Structure of Polymeric (MeTeCl3)n
- N-Ferrocenyl Amines Bearing Boryl and Silyl Substituents at the Nitrogen Atom, Studied by 57Fe NMR Spectroscopy
- DFT Calculations of the Structures and IR Frequencies of the Anionic Fulminate Complexes [Co(CNO)6]3-, [Ni(CNO)4]2-, [Zn(CNO)4]2-, [Pt(CNO)4]2-, [Au(CNO)2]- and [Hg(CNO)4]2-
- Authors Index
Schlagwörter für diesen Artikel
Cage Compounds;
Germanium-oxo Cages;
Germanium-Transition Metal Bonds
Artikel in diesem Heft
- Neue Oxogermanate(IV) der schweren Alkalimetalle. Synthesen und Kristallstrukturen/New Oxogermanates(IV) of the Heavy Alkaline Metals. Preparation and Crystal Structure
- Thiolate Complexes of Gold(I) Based on a Tris(phosphine) Support
- New Coordination Compounds Derived from Nitrone Ligands: Copper(II) Complexes with 8-Hydroxyquinoline-2-carbaldehyde- and Pyridine-2-carbaldehyde-N-methylnitrones
- Metallkomplexe mit biologisch wichtigen Liganden, CXL. Halbsandwich-Komplexe von Ruthenium(II), Rhodium(III), Iridium(III) sowie Palladium(II)-und Platin(II)-Komplexe mit N,O-Chelaten von Fluor-und Thiophen-haltigen α-Aminosäuren/Metal Complexes of Biologically Important Ligands, CXL. Halfsandwich Complexes of Ruthenium(II), Rhodium(III), Iridium(III) and Palladium(II), Platinum(II) Complexes with N, O-Chelates of Fluorine and Thiophene Containing α-Amino Acids
- Ternary Rare Earth and Uranium Nickel Arsenides Ln2NiAs2 (Ln = Tb -Yb), LnNiAs (Ln = La -Nd, Sm, Gd, Dy -Yb), and UNiAs
- Borane Activators for Nickel Catalysts for Olefin Polymerization
- Carbonyl(diphenylcyclopentadienyl)-und Carbonyl(tetraphenylcyclopentadienyl)rhodium(I) Komplexe/Carbonyl(diphenylcyclopentadienyl)-and Carbonyl(tetraphenylcyclopentadienyl)rhodium(I) Complexes
- Synthesis, Characterization and Molecular Structure of 2-Pyridyl-formamide N(4)-Dimethylthiosemicarbazone and Some Five-Coordinated Zinc(II) and Cadmium(II) Complexes
- Effect of a Thermal Treatment on the Activity of Carbon-Supported Pt, Pt+W and Pt+Mo Electrocatalysts for Methanol Oxidation Reactions
- The Synthesis and Crystal Structure of a Dinuclear μ-Pyrazolato-N,N'-Bridged Dinickel(II) Complex of 1,3-Bis(2-hydroxy-4-methoxybenzylideneamino)propan-2-ol
- Improved Synthetic Route to Unsymmetrically Substituted Phosphinimino-phosphonium Salts. Crystal Structure of Tri-n-butyl- [tris(diethylamino)phosphinimino]phosphonium Chloride
- Na2ZrSe3, ein neues Chalcogenometallat(IV) mit Schichtstruktur/Na2ZrSe3, a New Chalcogenometallate(IV) with a Layered Structure
- Bildung und Struktur von Tris(diphenylstibino)amin/Formation and Structure of Tris(diphenylstibino)amine
- Synthese und Struktur oxoverbrückter, M(CO)5 geschützter Hexa-Germanium-Käfigverbindungen /Synthesis and Structure of Oxo-Bridged, M (CO)5 Protected Hexagermanium Cage Compounds
- The Gold Sulfates MAu(S04)2 (M = Na, K, Rb)
- CD-Spectroscopic Investigations for the Determination of the Absolute Configuration of (4R,6S,7S)-Serricomin
- Electrolysis of Tetrakis(4-N,N-dimethylammophenyl)methane -Fragmentation of a Tetraarylmethane under Oxidative Conditions
- The Chemical Evolution of a Nitrogenase Model, XXIY. Correlational Analysis of Effects of Organic Acids on in vitro MoFe-Protein Substrate Reduction Activities
- Elektrostatische Aktivierung der SNAr-Reaktivität durch Sulfonyloniosubstituenten/Electrostatic Activation of SNAr-Reactivity by Sulfonylonio Substituents
- Formation and Crystal Structure of Polymeric (MeTeCl3)n
- N-Ferrocenyl Amines Bearing Boryl and Silyl Substituents at the Nitrogen Atom, Studied by 57Fe NMR Spectroscopy
- DFT Calculations of the Structures and IR Frequencies of the Anionic Fulminate Complexes [Co(CNO)6]3-, [Ni(CNO)4]2-, [Zn(CNO)4]2-, [Pt(CNO)4]2-, [Au(CNO)2]- and [Hg(CNO)4]2-
- Authors Index
