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本文以气相色谱法为主要手段,配合Mossbauer谱、红外光谱等结构分析方法,研究了一系列一取代基五氰合铁(Ⅱ)类配合物Na_2[Fe(CN)_5L]·mH_2O及Na_3[Fe(CN)_5L′]·nH_2O(L=NO~+、N_2H_5~+、onH~+, L′=NH_3、H_2O、Py)的热分解反应。结果表明所有一取代五氰合铁(Ⅱ)配合物热分解过程中都形成相同的中间化合物Na_4[Fe(CN)_6]和Fe_2[Fe(CN)_6],各配合物热分解放出取代基L(L′)的温度次序与L(L′)在光谱化学序列中的次序一致。本文以亚硝基铁氰化钠为代表,详细讨论了该系列配合物的热分解反应机理以及热稳定性的规律性。
In this paper, a series of monosubstituted pentacyanonuclear iron (Ⅱ) complexes Na_2 [Fe (CN) _5L] · mH_2O and Na_3 were studied by gas chromatography with Mossbauer spectroscopy and infrared spectroscopy. Fe (CN) _5L ’] · nH_2O (L = NO ~ +, N_2H_5 ~ +, onH ~ +, L’ = NH_3, H_2O, Py) The results showed that all of the complexes (Na_4 [Fe (CN) _6] and Fe_2 [Fe (CN) _6] formed during the thermal decomposition of all monosubstituted pentacyanoiron (Ⅱ) The order of the temperature of L (L ’) and the order of L (L’) in the spectral chemical sequence are the same. In this paper, nitroso-sodium ferricyanide as a representative, in-depth discussion of the series of thermal decomposition reaction mechanism and thermal stability of the regularity.