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首页> 美国政府科技报告 >Formation and Properties of Dimethyl Sulfide-Tetraborane(8). Base-Induced Dynamic Behavior of Tetraborane(8) Adducts.
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Formation and Properties of Dimethyl Sulfide-Tetraborane(8). Base-Induced Dynamic Behavior of Tetraborane(8) Adducts.

机译：二甲基硫醚 - 四环硼烷（8）的形成和性质。四苯并（8）加合物的碱诱导动力学行为。

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Dimethyl sulfide-tetraborane (8) (B4H8.S(CH3)2) was produced from the reaction of B5H11 with S(CH3) and was isolated as a liquid at -23 C. The compound was unstable at room temperature but showed an increased stability in S (CH3)2. An unstable adduct B5H11.S(CH3)2 was identified at -95 C as a precursor of B4H8.S(CH3)2. The B11 NMR spectra of B4H8.S(CH3)2 in S(CH3)2 showed that the B3 and B2, 4 signals were coalesced at room temperature, indicating that a rapid internal exchange motion was induced by the solvent S(CH3)2. The diethyl sulfide, tetrahydrothiophene, and trimethylphosphine adducts of B4H8 adducts. The B3 and B2, 4 signals of B4H8.N(CH3)3 did no coalesce when the adduct was dissolved in dialkyl sulfides. The position of the ligand (exo and endo) with respect to the bent B4H8 framework might be responsible for the different behavior of amine adduct. Reprint. (js)

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