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在600℃以上气态的MoCl_4是稳定的。在500℃以下发生岐化,在500℃产生MoCl_(2.9),而在400～2(?)0℃则产生MoCl_(?)。岐化的气态的MoCl_4的百分数随着温度的降低而增加。在230～300℃于氢气中、气态的MoCl_4不和氢气反应但发生岐化,在400℃以上,发生岐化之前气态的MoCl_4和氢气反应。在400℃时的产物是MoCl_(2.9)和MoCl_2;在500～600℃的产物是MoCl_2和Mo;而在650℃时则是Mo。
MoCl_4 in the gaseous state above 600 ° C is stable. Disproportionation occurs below 500 ° C, producing MoCl 2.9 at 500 ° C and MoCl? At 400-2 ° C. The percentage of gasified MoCl_4 increases with decreasing temperature. At 230 ~ 300 ℃ in hydrogen, gaseous MoCl_4 does not react with hydrogen but undergoes disproportionation. At temperatures above 400 ℃, gaseous MoCl_4 and hydrogen react before disproportionation occurs. The products at 400 ° C are MoCl_ (2.9) and MoCl_2; the products at 500 ~ 600 ° C are MoCl_2 and Mo; and at 650 ° C they are Mo.