Chemistry:Diphenyl ditelluride
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| Names | |
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| Preferred IUPAC name
1,1′-Ditellanediyldibenzene | |
| Other names
Phenylditelluride
Diphenylditelluride | |
| Identifiers | |
3D model (JSmol)
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| ChEMBL | |
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PubChem CID
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| Properties | |
| C12H10Te2 | |
| Molar mass | 409.42 g/mol |
| Appearance | Orange powder |
| Density | 2.23 g/cm3 |
| Melting point | 66 to 67 °C (151 to 153 °F; 339 to 340 K) |
| Boiling point | decomposes |
| Insoluble | |
| Solubility in other solvents | Dichloromethane |
| Structure | |
| 90° at Se C2 symmetry | |
| 0 D | |
| Hazards | |
| Main hazards | Toxic |
| GHS pictograms | 
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| GHS Signal word | Warning |
| H302, H312, H315, H319, H332, H335 | |
| P261, P264, P270, P271, P280, P301+312, P302+352, P304+312, P304+340, P305+351+338, P312, P321, P322, P330, P332+313, P337+313, P362, P363, P403+233, P405, P501 | |
| Related compounds | |
Related compounds
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Ph2S2, Ph2Se2 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
 verify (what is   ?)
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| Infobox references | |
Diphenylditelluride is the chemical compound with the formula (C6H5Te)2, abbreviated Ph2Te2. This orange-coloured solid is the oxidized derivative of the unstable benzenetellurol, PhTeH. Ph2Te2 is used as a source of the PhTe unit in organic synthesis[2][citation needed] and as a catalyst for redox reactions.[3]
Preparation
Ph2Te2 is prepared by the oxidation of tellurophenolate, which is generated via the Grignard reagent:[4]
- PhMgBr + Te → PhTeMgBr
- 2PhTeMgBr + 0.5 O2 + H2O → Ph2Te2 + 2 MgBr(OH)
The molecule has C2 symmetry.
References
- ↑ "Diphenyl ditelluride" (in en). https://pubchem.ncbi.nlm.nih.gov/compound/100657#section=Safety-and-Hazards.
- ↑ Mohan, Balaji; Yoon, Chohye; Jang, Seongwan; Park, Kang Hyun (2015). "Copper Nanoparticles Catalyzed Se(Te)-Se(Te) Bond Activation: A Straightforward Route Towards Unsymmetrical Organochalcogenides from Boronic Acids". ChemCatChem 7 (3): 405–412. doi:10.1002/cctc.201402867. ISSN 1867-3880.
- ↑ Alberto, Eduardo E.; Muller, Lisa M.; Detty, Michael R. (2014). "Rate Accelerations of Bromination Reactions with NaBr and H2O2 via the Addition of Catalytic Quantities of Diaryl Ditellurides". Organometallics 33 (19): 5571–5581. doi:10.1021/om500883f.
- ↑ Crich, D.; Yao, Q. "Diphenyl Ditelluride" in Encyclopedia of Reagents for Organic Synthesis (Ed: L. Paquette) 2004, J. Wiley & Sons, New York. doi:10.1002/047084289X.rd416.
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