Intramolecularly Double‐Donor‐Stabilized Stannylene and Its Coordination towards Ag(I) and Au(I) Centers
| Autor: | Vikas Kumar, Moumita Majumdar, Rahul Deb, Rajesh G. Gonnade, Ravindra K. Raut, Purva Chibde |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010405 organic chemistry
Organic Chemistry chemistry.chemical_element General Chemistry 010402 general chemistry 01 natural sciences Biochemistry 0104 chemical sciences Metal chemistry.chemical_compound Crystallography Sulfonate chemistry visual_art Pyridine visual_art.visual_art_medium Lithium Homoleptic Ionic complex Single crystal |
| Zdroj: | Chemistry – An Asian Journal. 16:2118-2125 |
| ISSN: | 1861-471X 1861-4728 |
| Popis: | The intramolecularly double-donor-stabilized stannylene 1 has been synthesized from the salt-metathesis reaction between two equivalents of lithium pyridine ene-amide L1 and SnCl2 . Compound 1 exhibits dipolar behavior when reacted with B(C6 F5 )3 leading to the zwitterionic compound 2. The reaction of 1 with one equivalent and 0.5 equivalent of AgOTf (OTf=trifluoromethane sulfonate) result in the formation of a stannylene-AgOTf complex 3 and a homoleptic distannylene-silver ionic complex 4, respectively. Analogous to complex 4, the gold(I) complex 5 has been synthesized from the reaction between two equivalents of 1 and 0.5 equivalent of AuCl.SMe2 /Me3 SiOTf. Complex 5 is the first example of homoleptic stannylene-Au(I) ionic complex among the very scarce reports on stannylene-gold(I) coordination complexes. All compounds have been structurally characterized using single crystal X-ray crystallography. Solution-state characterization have been performed using multinuclear NMR techniques. Detailed DFT calculations on the optimized geometries 1 o, 3 o-5 o reveal the change in sp- hybridization on the pyramidal Sn(II) center upon metal coordination and their bonding overlaps. |
| Databáze: | OpenAIRE |
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