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The Synthesis of [Sn10SiSiMe334]2- Using a Metastable SnI Halide Solution Synthesized via a Co-condensation Technique
Published on: November 28, 2016
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Di-μ-hydroxido-bis-[iodido-diphenyl-tin(IV)]-1,3-di-methyl-imidazolidin-2-one (1/2)
1Chemistry, Osnabrück University, Barabarstr. 7, 49069 Osnabrück, Germany.
Iucrdata
|September 8, 2025
Summary
This study details a novel dimeric diorganotin(IV) compound featuring hydroxide and iodide ligands. The research elucidates the structural characteristics of this unique tin complex, contributing to organometallic chemistry.
Area of Science:
- Organometallic Chemistry
- Inorganic Chemistry
- Crystallography
Background:
- Dimeric diorganotin(IV)-hydroxide-halide solvates are a known class of compounds.
- The specific compound [Sn(C₆H₅)₂I(OH)]·2C₆H₁₂N₂O is only the second example with iodide (I) as the halide.
- These compounds typically dimerize via hydroxyl groups.
Purpose of the Study:
- To characterize the structure of the novel dimeric diorganotin(IV) compound.
- To investigate the dimerization process and the resulting molecular geometry.
- To analyze the tin-oxygen bond distances and bond angles within the dimeric structure.
Main Methods:
- Single crystal X-ray diffraction was used to determine the molecular structure.
- Analysis of bond distances and angles to understand the coordination environment around the tin atoms.
- Comparison with existing literature on similar diorganotin(IV) compounds.
Main Results:
- The compound forms a planar, centrosymmetric, four-membered Sn-O ring due to dimerization via hydroxyl oxygen atoms.
- Tin-oxygen bond distances vary based on the axial or equatorial position of the oxygen atom.
- Acute bond angles at the tin atoms (70.74°) and obtuse angles at the oxygen atoms (109.26°) were observed.
Conclusions:
- The structural analysis confirms the dimeric nature of the compound through hydroxyl bridges.
- The observed geometry is consistent with trigonal-pyramidal coordination at the tin centers.
- This study provides further insight into the structural diversity of organotin(IV) complexes.
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