摘要
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。
The thermal decomposition of pentacyanoferrate (Ⅱ) complexes Na_2Fe(CN)_5L·mH_2O
(L=NO^+, N_2H_5^+, H_2NCH_2CH_2NH_3^+) and Na_3Fe(CN)5L'·nH_2O (L'=NH_3, H_2O, Py) was
investigated by gas chromatography, Mossbauer spectroscopy as well as infrared
spectroscopy. The results showed that the same solid intermediate products of sodium
ferrocyanide and ferrous ferrocyanide were produced. It has been found that the series of
temperature at which those complexes lost the ligand L(L') is in accordance with the
spectrochemical series. Sodium nitroprusside was used as an example to elucidate the
mechanism of thermal decomposition and the relative thermal stability of various
pentacyanoferrate (Ⅱ) complexes.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1989年第9期846-852,共7页
Acta Chimica Sinica
基金
联合国教科文组织
国家自然科学基金会
国家教委博士点基金
