Strukturen von polaren Magnesiumorganylen: Synthese und Struktur von Basen-Addukten des Bis(pentamethylcyclopentadienyl)magnesiums
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Anja Jaenschke
The syntheses and structures of six new pentamethylcyclopentadienyl magnesium complexes are reported. The structure of the known Mg(C5Me5)2 (1) was re-determined to afford more precise distances and angles. When Mg(C5Me5)2 is crystallized from dioxane the complex co-crystallizes with dioxane not bound to magnesium (2). The magnesium complexes [Mg(C5Me5)(OCH2CH2CH2CH2C5Me5)(THF)]2 (3), [Mg(C5Me5)(OMe)(THF)]2 (4) and [Mg(C5Me5)(OOC5Me5)(TMEDA)] (5) were obtained in low yield by reacting Mg(C5Me5)2 with tetrahydrofuran (THF), dimethoxyethane, and tetramethylethylenediamine (TMEDA)=oxygen, respectively. All compounds 3, 4 and 5 have a (C5Me5)Mg unit with Mg-O contacts to the cleavage or oxidation products. The compound [Mg(C5Me5)(15-crown-5)][C5Me5] · 15-crown-5 · toluene (6) was synthesized from Mg(C5Me5)2 and the crown ether 15-crown-5 in toluene. Here one C5Me5 ring was removed from the Mg(II) ion and replaced by a crown ether ligand. Both C5Me5-ligands could be cleaved from the magnesium cation by reacting Mg(C5Me5)2 with dimethylsulfoxide (DMSO) to give the salt [Mg(DMSO)6]2+ 2[C5Me5]- (7).
Graphical Abstract
Strukturen von polaren Magnesiumorganylen: Synthese und Struktur von Basen-Addukten des Bis(pentamethylcyclopentadienyl)magnesiums
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Artikel in diesem Heft
- Synthesis and Crystal Structure of a “High-temperature” Phase of Li[H2NC(O)NH], the Missing Alkali-Metal Ureate
- Strukturen von polaren Magnesiumorganylen: Synthese und Struktur von Basen-Addukten des Bis(pentamethylcyclopentadienyl)magnesiums
- The Mixed-valent Mercury(I/II) Compounds Hg3(HAsO4)2 and Hg6As2O10
- New Intermetallic Zinc Compounds with Ordering Variants of the KHg2 and LT-SrZn5 Type
- Effects of Metal Ions and N-Donor Ligands with Different Coordination Characters on the Construction of d10 Metal-organic Complexes with Selective Photocatalytic Activities
- Synthesis and Characterization of Novel Re(BIAN)(CO)3Cl Derivatives Including the First Example of a Water-soluble Tricarbonyl Rhenium(I) Complex with Bis(imino)acenaphthene Ligands
- Hydrothermal Synthesis and Crystal Structure of a One-dimensional Cobalt (II) Coordination Polymer with Two Organic Ligands
- Vinylsilylferrocenes and Ethynyl(vinyl)silylferrocenes. Synthesis, Multinuclear Magnetic Resonance Study and DFT Calculations
- One-pot Multi-component Synthesis of Mono- and Bis-indolylimidazole Derivatives Using Zn2+@KSF and Their Antibacterial Activity
- Catalyst-free, Solvent-promoted and Scalable Multicomponent Synthesis of 3-Aminoalkylated Indoles via a Mannich-type Reaction
- Synthesis and Reactions of New Chiral Linear Dipeptide Candidates Using Nalidixic Acid as Starting Material
- Synthesis and Characterization of Ammonium Acesulfamate
- Two Rare Hydroazulene-type Sesquiterpenes from the Roots of Aristolochia yunnanensis
- Spiroalkaloids and Coumarins from the Stem Bark of Pauridiantha callicarpoides
