- Synthesis and characterization of tert-butyl(tert-butyltellurio)mercury(II)
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The compound (t-Bu)HgTe(t-Bu) was prepared by the reaction of (t-Bu)HgCl with (t-Bu)TeLi in tetrahydrofuran solution at -5°C. The yellow crystalline light-sensitive solid is stable in an inert atmosphere but decomposes in solution at 20°C. It gives a strong (M + 1)+ peak in the methane chemical ionization mass spectrum. 1H, 13C, 125Te, and 199Hg NMR spectra (toluene, -15°C) show two distinct tert-butyl groups, one type on mercury (δHg = -883 vs. dimethylmercury) and one type on tellurium (δTe = 339 vs. dimethyl telluride), with couplings 1JTe-C = 390, 1JHg-C = 1285, 2JHg-C = 17, 3JTe-C-C-H = 20, and 3JHg-C-C-H = 196 Hz. The far-infrared spectrum is interpreted in terms of Hg-Te stretching at 151 cm-1, C-Hg-Te and C-Te-Hg bending at 239 and 224 cm-1, and Te-C and Hg-C stretching at 491 and 511 (shoulder) cm-1. The ultraviolet spectrum (pentane solution) exhibits bands at 365 (shoulder, log ε = 2.6), 295 (shoulder, log ε = 3.6), and 227 nm (log ε = 4.7). Nuclear magnetic resonance, far-infrared, and ultraviolet spectra are also reported for (t-Bu)2Hg and (n-Bu)2Te.
- Harris, Daniel C.,Nissan, Robin A.,Higa, Kelvin T.
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p. 765 - 768
(2008/10/08)
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- MULTINUCLEAR NMR SPECTROSCOPY OF (METALLA)NEOPENTYL DERIVATIVES OF TIN AND MERCURY
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Proton, carbon-13, tin-119 and mercury-199 chemical shift and element-metal coupling constant data are presented for compounds of the types Sn(CH2MMe3)4, Hg(CH2MMe3)2, Me3SnCH2MMe3 and i-BuHgCH2MMe3 (M = C, Si, Ge, Sn).In almost all cases the NMR paramete
- Mitchell, Terence N.,Fabisch, Bodo
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p. 249 - 254
(2007/10/02)
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