Home Synthesis and Structure of the Substituted Lithium Benzyl [Li(tmeda)2]+[C(PMe2)(SiMe3)C6H3-3,5-Me2]-. The First Metal Phosphinomethanide Consisting of Solvent-Separated Ion Pairs
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Synthesis and Structure of the Substituted Lithium Benzyl [Li(tmeda)2]+[C(PMe2)(SiMe3)C6H3-3,5-Me2]-. The First Metal Phosphinomethanide Consisting of Solvent-Separated Ion Pairs

  • Volker Knapp , Martin Winkler and Gerhard Müller EMAIL logo
Published/Copyright: June 2, 2014
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Zeitschrift für Naturforschung B
From the journal Zeitschrift für Naturforschung B Volume 55 Issue 12

The lithium dimethylphosphinomethanide with trimethylsilyl and 3,5-dimethylphenyl substituents in a position [Li(tmeda)2]+[C(PMe2)(SiMe3)C6H3−3 ,5-Me2]− (2) was synthesized from Me2P-CH(SiMe3)C6H3−3 ,5-Me2 (1) and LinnBu/tmeda in hexane in 56% yield (tmeda = N, N, N′, N′-tetramethylethylenediamine). In the solid state it consists of solvent-separated ion pairs which probably is also the case in solution (crystal structure data: tetragonal, space group I41cd, a = b = 19.303(3), c = 34.905(7) Å, Z = 16, R(F) = 0.054 for 2309 unique data and 299 refined parameters). The a-substituted lithium benzyl 2 is the first metal phosphinomethanide containing “free”, uncoordinated anions in the solid state. The lack of metal coordination of the anion is reflected in the bonding parameters at the planar carbanionoid benzylic carbon atom C1 (C1-P 1.773(8), C1-Si 1.846(8), C1-C2(Ph) 1.442(9) Å; C2-C1-P 125.3(5), C2-C1-Si 127.1(5), P-C1-Si 107.5(3)°; sum of the angles at C1: 359.9°).

Keywords: Lithium Phosphinomethanides; Lithium Benzyls
Received: 2000-9-18
Published Online: 2014-6-2
Published in Print: 2000-12-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

Articles in the same Issue

  1. Wechselwirkungen in Molekülkristallen, 160 [1,2]. Kristallzüchtung und Strukturbestimmung der verschiedenartigen Polyphenyl-Kontaktionenmultipel [p-Quaterphenylee⊖⊖][Na⊕(DME)3]2, [p-Quaterphenyl⊖⊖(Na⊕(THF)3)2] und [p-Terphenyl⊖⊖Na⊕(DME)2Na⊕(DME)]2 / Interaction in Molecular Crystals, 160 [1, 2]. Crystallization and Structure Determination of the Different Polyphenyl Contact Ion Multiples [p-Quaterphenylee⊖⊖][Na⊕(DME)3]2, [p-Quaterphenyl⊖⊖(Na⊕(THF)3)2] und [p-Terphenyl⊖⊖Na⊕(DME)2Na⊕(DME)]2
  2. Synthesis and Structure of the Substituted Lithium Benzyl [Li(tmeda)2]+[C(PMe2)(SiMe3)C6H3-3,5-Me2]-. The First Metal Phosphinomethanide Consisting of Solvent-Separated Ion Pairs
  3. Optical Outer-Sphere Charge Transfer in Ion Pairs with Peroxoborate as Donor
  4. Enantioselektive Gewinnung und Kristallstruktur des Ecstasy-Analogons N-Ethyl-3,4-methylendioxyamphetamin-HCl (MDE) und seiner beiden Hauptmetaboliten MDA und HME / Enantioselective Production and Crystal Structure of the Ecstasy Analogue N-Ethyl-3,4- methylenedioxyamphetamine-HCl (MDE) and its Major Metabolites MDA and HME
  5. Synthesis, Crystal Structure and Magnetic Properties of a Novel GdIII -CuII Heterodinuclear Complex
  6. Atomvolumen und Packungsdichte der Atome in metallischen Elementen Atomic Volume and Packing Density of Atoms in Metallic Elements
  7. Properties of the Ternary (Dien)Pt(PMEA-N7) Complex Containing Diethylenetriamine (Dien) and the Antiviral 9-[2-(Phosphonomethoxy)ethyl]adenine (PMEA). Synthesis, Biological Screening, Acid-Base Behaviour, and Metal Ion-Binding in Aqueous Solution
  8. Photochemical Synthesis and Identification of Tetracarbonyl-bis(olefin)metal(0) Complexes of Group VI B Elements
  9. Structural and Spectroscopic Characterization of Two New Cu(II)-Dipeptide Complexes
  10. Wechselwirkungen in Molekülkristallen, 163 [1, 2]. Einfluß der Alkalimetall-Reduktionspotentiale auf die Bildung ihrer Kontaktionenmultipel mit Tetracen- und Decacylen-Polyanionen / Interaction in Molecular Crystals, 163 [ 1,2]. The Influence of Alkaline Metal Reduction Potentials on the Formation of their Contaction Multiples with Tetracene and Decacyclene Polyanions
  11. Reactivity of Cobalt(III) Amine-Thiolate Complexes with Terminal and Bridging Thiolate Functions towards Hydrogen Peroxide
  12. Monosubstituierte Derivate des Halbsandwich-Komplexes Cp*Ta(CO)4 - Vergleich mit den analogen Vanadiumverbindungen Cp*V(CO)3L und Röntgenstrukturanalyse des γ-Picolin-Komplexes Cp*V(CO)3(NC5H4-Me(4)) / Monosubstituted Derivatives of the Halfsandwich Complex Cp*Ta(CO)4 - Comparison with the Analogous Vanadium Compounds Cp*V(CO)3L and X-Ray Structural Analysis of the γ-Picoline Complex Cp*V(CO)3(NC5H4-Me(4))
  13. Formation of Methylchloroaluminium Alkanethiolates, MeAl(SR)Cl, and Dichloroaluminium Alkanethiolates, Cl2AlSR, from Methylaluminium Dichloride and Trimethylsilyl Alkanethiolates, Me3SiSR
  14. Chemischer Transport intermetallischer Phasen III: Das System Co-Si / Chemical Vapour Transport of Intermetallic Phases III: The System Co -Si
  15. Triterpenes from Mimusops elengi
  16. Studies with 2-Arylhydrazono-3-oxopropanaIs: A Novel Route to 4-Aroyl-2-aryl-1,2,3-triazoIes, 3-Substituted 4-Arylazopyrazoles, 2-Substituted Glyoxalonitrile and 3-Oxoalkanonitriles
  17. Furanoid and Furofuranoid Lignans from Daphne oleoides
  18. Subject Index
  19. Authors Index
https://doi.org/10.1515/znb-2000-1202
Keywords for this article
Lithium Phosphinomethanides; Lithium Benzyls

Articles in the same Issue

  1. Wechselwirkungen in Molekülkristallen, 160 [1,2]. Kristallzüchtung und Strukturbestimmung der verschiedenartigen Polyphenyl-Kontaktionenmultipel [p-Quaterphenylee⊖⊖][Na⊕(DME)3]2, [p-Quaterphenyl⊖⊖(Na⊕(THF)3)2] und [p-Terphenyl⊖⊖Na⊕(DME)2Na⊕(DME)]2 / Interaction in Molecular Crystals, 160 [1, 2]. Crystallization and Structure Determination of the Different Polyphenyl Contact Ion Multiples [p-Quaterphenylee⊖⊖][Na⊕(DME)3]2, [p-Quaterphenyl⊖⊖(Na⊕(THF)3)2] und [p-Terphenyl⊖⊖Na⊕(DME)2Na⊕(DME)]2
  2. Synthesis and Structure of the Substituted Lithium Benzyl [Li(tmeda)2]+[C(PMe2)(SiMe3)C6H3-3,5-Me2]-. The First Metal Phosphinomethanide Consisting of Solvent-Separated Ion Pairs
  3. Optical Outer-Sphere Charge Transfer in Ion Pairs with Peroxoborate as Donor
  4. Enantioselektive Gewinnung und Kristallstruktur des Ecstasy-Analogons N-Ethyl-3,4-methylendioxyamphetamin-HCl (MDE) und seiner beiden Hauptmetaboliten MDA und HME / Enantioselective Production and Crystal Structure of the Ecstasy Analogue N-Ethyl-3,4- methylenedioxyamphetamine-HCl (MDE) and its Major Metabolites MDA and HME
  5. Synthesis, Crystal Structure and Magnetic Properties of a Novel GdIII -CuII Heterodinuclear Complex
  6. Atomvolumen und Packungsdichte der Atome in metallischen Elementen Atomic Volume and Packing Density of Atoms in Metallic Elements
  7. Properties of the Ternary (Dien)Pt(PMEA-N7) Complex Containing Diethylenetriamine (Dien) and the Antiviral 9-[2-(Phosphonomethoxy)ethyl]adenine (PMEA). Synthesis, Biological Screening, Acid-Base Behaviour, and Metal Ion-Binding in Aqueous Solution
  8. Photochemical Synthesis and Identification of Tetracarbonyl-bis(olefin)metal(0) Complexes of Group VI B Elements
  9. Structural and Spectroscopic Characterization of Two New Cu(II)-Dipeptide Complexes
  10. Wechselwirkungen in Molekülkristallen, 163 [1, 2]. Einfluß der Alkalimetall-Reduktionspotentiale auf die Bildung ihrer Kontaktionenmultipel mit Tetracen- und Decacylen-Polyanionen / Interaction in Molecular Crystals, 163 [ 1,2]. The Influence of Alkaline Metal Reduction Potentials on the Formation of their Contaction Multiples with Tetracene and Decacyclene Polyanions
  11. Reactivity of Cobalt(III) Amine-Thiolate Complexes with Terminal and Bridging Thiolate Functions towards Hydrogen Peroxide
  12. Monosubstituierte Derivate des Halbsandwich-Komplexes Cp*Ta(CO)4 - Vergleich mit den analogen Vanadiumverbindungen Cp*V(CO)3L und Röntgenstrukturanalyse des γ-Picolin-Komplexes Cp*V(CO)3(NC5H4-Me(4)) / Monosubstituted Derivatives of the Halfsandwich Complex Cp*Ta(CO)4 - Comparison with the Analogous Vanadium Compounds Cp*V(CO)3L and X-Ray Structural Analysis of the γ-Picoline Complex Cp*V(CO)3(NC5H4-Me(4))
  13. Formation of Methylchloroaluminium Alkanethiolates, MeAl(SR)Cl, and Dichloroaluminium Alkanethiolates, Cl2AlSR, from Methylaluminium Dichloride and Trimethylsilyl Alkanethiolates, Me3SiSR
  14. Chemischer Transport intermetallischer Phasen III: Das System Co-Si / Chemical Vapour Transport of Intermetallic Phases III: The System Co -Si
  15. Triterpenes from Mimusops elengi
  16. Studies with 2-Arylhydrazono-3-oxopropanaIs: A Novel Route to 4-Aroyl-2-aryl-1,2,3-triazoIes, 3-Substituted 4-Arylazopyrazoles, 2-Substituted Glyoxalonitrile and 3-Oxoalkanonitriles
  17. Furanoid and Furofuranoid Lignans from Daphne oleoides
  18. Subject Index
  19. Authors Index
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