三碘化硼

三碘化硼是硼与碘形成的无机化合物，化学式为BI₃。它的空间构型为平面正三角形。它是一种结晶固体。它的介电系数是5.38，汽化热是40.5 kJ/mol（9.7 kcal/mol）。

三碘化硼可由硼氢化锂与碘单质在己烷中回流制得，或者在合适的温度下由碱金属硼氢化物与碘单质反应获得。

\rm \ MBH_4 + 3I_2 \rightarrow BI_3 + MI + 2HI + H_2 (M=Li,Na)

赤热下碘化氢与三氯化硼反应也得到三碘化硼。

单词	Boron triiodide
释义	Boron triiodide 中文百科三碘化硼三碘化硼是硼与碘形成的无机化合物，化学式为BI₃。它的空间构型为平面正三角形。它是一种结晶固体。它的介电系数是5.38，汽化热是40.5 kJ/mol（9.7 kcal/mol）。三碘化硼可由硼氢化锂与碘单质在己烷中回流制得，或者在合适的温度下由碱金属硼氢化物与碘单质反应获得。 $\rm \ MBH_4 + 3I_2 \rightarrow BI_3 + MI + 2HI + H_2 (M=Li,Na)$ 赤热下碘化氢与三氯化硼反应也得到三碘化硼。英语百科 Boron triiodide 三碘化硼 Boron triiodide is a chemical compound of boron and iodine with chemical formula BI₃. It has a trigonal planar molecular geometry. It is a crystalline solid, which reacts vigorously with water to form boric acid. Its dielectric constant is 5.38 and its heat of vaporization is 40.5 kJ/mol. At extremely high pressures, BI₃ becomes metallic at ~23 GPa and is a superconductor above ~27 GPa.
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Boron triiodide