1993
DOI: 10.1039/dt9930002547
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Preparation, characterisation and reactions of tellurocarbonyl difluoride and trifluoromethanetellurenyl iodide

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Cited by 30 publications
(26 citation statements)
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“…With the exception of MeTe(CF 3 )I 2 and MeTe(C 2 F 5 )I 2 , all derivatives can be stored at 0 °C or below for at least several months. However, both iodides decompose in solution (and also in the solid state) to give finally MeI, CF 3 TeI,13,17 and C 2 F 5 TeI, respectively, as monitored by 1 H and 19 F NMR control. A pseudo‐kinetic of the decay (CD 2 Cl 2 solution) on the basis of the integrals obtained from the 1 H and 19 F NMR spectra is depicted in Figure 1 for MeTe(C 2 F 5 )I 2 , which clearly indicates complete decomposition of the starting material in solution after approximately 4 days.…”
Section: Resultsmentioning
confidence: 98%
“…With the exception of MeTe(CF 3 )I 2 and MeTe(C 2 F 5 )I 2 , all derivatives can be stored at 0 °C or below for at least several months. However, both iodides decompose in solution (and also in the solid state) to give finally MeI, CF 3 TeI,13,17 and C 2 F 5 TeI, respectively, as monitored by 1 H and 19 F NMR control. A pseudo‐kinetic of the decay (CD 2 Cl 2 solution) on the basis of the integrals obtained from the 1 H and 19 F NMR spectra is depicted in Figure 1 for MeTe(C 2 F 5 )I 2 , which clearly indicates complete decomposition of the starting material in solution after approximately 4 days.…”
Section: Resultsmentioning
confidence: 98%
“…Reaction of CF 3 TeI with Hg(SeCF 3 ) 2 affords CF 3 TeSeCF 3 with a good NMR yield but with an isolated yield, by preparative gas chromatography, of only 48 % (Scheme 39b). [ 44 ] However, the resulting orange oil decomposes slowly at room temperature into F 3 CSeSeCF 3 and F 3 CTeTeCF 3 . Syntheses of CF 3 TeNSO and R F TeCN were also described with modest to excellent yields starting from Hg(NSO) 2 and AgCN salts respectively (Scheme 39c‐d).…”
Section: Direct Approachmentioning
confidence: 99%
“…In dieser Arbeit werden die Photoelektronen-Spektren folgender Verbindungen vorgestellt und zugeordnet: (1) Zusa È tzlich werden quantenchemische Berechnungen der Moleku È lstruktur sowie Koopmans-korrelierter Radikalkation-Zusta È nde fu È r das noch unbekannte Moleku È l F 3 C(Cl)C=Te pra È sentiert. (2)…”
unclassified
“…Keywords: Tellurocarbonyldifluoride (and derivatives); 2,2,4,4-Tetrafluoro-1,3-ditelluretane (and derivatives); Photoelectron spectra; Ab initio calculations; Thermal decomposition Ausgangspunkt Die Herstellung und Charakterisierung von F 2 C=Te und seinem Dimeren [1,2] im Jahre 1992 ebnete Synthesewege fu È r weitere Tellurkohlenstoff-Verbindungen, und es konnten seither mehrere perfluorierte Telluroketone synthetisiert werden [3]. Die Reaktivita Èt der C=E-Doppelbindung nimmt in der Verbindungsreihe F 2 C=E (E = O, S, Se, Te) erwartungsgema È û vom Sauerstoff-zum Tellur-Derivat zu: Wa È hrend F 2 C=O bei 20°C unbegrenzt besta È ndig ist, zersetzt sich F 2 C=S bereits innerhalb weniger Wochen [4].…”
unclassified
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