摘要
基于铁和锰的双核配合物在生物氧化还原过程中的重要作用及在化学的氧化还原过程中可能做为催化剂的应用前景,本文合成了两个新的以氯醌酸二价阴离子为桥联配体的Fe(Ⅲ)双核和Mn(Ⅱ)双核配合物:[Fe_2(phen)_4(μ-CA)](ClO_4)_4·2H_2O(1)和[Mn_2(phen)_4(μ-CA)](ClO_4)_2·3H_2O(2)(phen=1,10菲咯啉;CA=氯醌酸二价阴离子)。经元素分析、IR、电子光谱及磁性等测定,对两配合物进行了表征。
Two new binuclear Fe(III)-Fe(III) and Mn(II )-Mn(II) complexes containing the dianions of chloranilic acids (CA) which act as bridging ligand in the complexes, have been synthesized namely [Fe2(phen)4(u-CA)](ClO4)4 ·2H2O and [Mn2(phen)4(u-CA)](ClO4)2· 3H2O (phen = O-phenanthroline; CA = dianions of chloranilic acids). They have been characterized by elemental analyses, IR, electronic spectra, susceptibility and variable-temperature magnetic susceptibility. The results indicate that there is a antiferromagnetic interaction between metal ions in the complexes at low temperature. The observed data were well fitted to those from a Heisenberg model. The obtained parameters: J= -2.02cm-1, g = 2.25 for Fe(III)-Fe(III) complex; J=-5.45cm-1, g = 2.01 for Mn(II)-Mn(II) complex.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
1992年第1期71-73,共3页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金
关键词
铁-铁
锰-锰
双核配合物
磁性
binuclear complex Fe(III)-Fe(III) Mn(II)-Mn(II)
