Abstract The thermal decomposition was investigated for the double complex compound (DCC) [Co(en)3][Fe(C2O4)3] in an argon atmosphere at a heating rate of 5 K/min and the initial amount of complex 20−30 mmol. The composition of solid decomposition products was determined for fixed temperatures 310, 370, 430, 500, 550, 600 and 700 °C. It has been established that all products contain significant (about 30 % of the initial) amount of carbon. The residual carbon in the form of hollow prisms, repeating the shape of initial compound crystals, was isolated from decomposition products at ≥ 500 °C during treatment with hydrochloric acid. Isolated carbons contain an admixture of metals (up to 33 %) and are oxidized in air to CO2 at a temperature range 300−600 °C.

中文翻译：

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[Co(en)3][Fe(C2O4)3] 在惰性气氛中热分解的固态转变

摘要 研究了双络合物 (DCC) [Co(en)3][Fe(C2O4)3] 在氩气气氛中以 5 K/min 的加热速率和初始络合物 20−30毫摩尔。固体分解产物的组成是在固定温度 310、370、430、500、550、600 和 700 °C 下确定的。已经确定所有产品都含有大量（大约初始的 30%）碳。在用盐酸处理过程中，在 ≥ 500 °C 时，从分解产物中分离出空心棱柱形式的残留碳，重复初始化合物晶体的形状。孤立的碳含有金属混合物（高达 33%），并在 300-600 °C 的温度范围内在空气中氧化成 CO2。