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作 者:李子峰[1] 葛铁柱[1] 刘淑敏[1] 樊耀亭[1]
出 处:《化学研究与应用》2008年第9期1154-1157,共4页Chemical Research and Application
基 金:国家自然科学基金(20471053,20501017)
摘 要:3-氨基-1-羟基丙叉-1,1-二膦酸与钴或铜离子的水热反应得到新的配聚物Co2(NH3CH2CH2C(OH)(PO3)(PO3H))2.2H2O(1)和Cu3{[NH3CH2CH2C(OH)(PO3)2](H2O)2}(2).研究了两个配合物的热稳定性,采用变温磁化率研究了在5-300 K范围内的磁性能。结果表明:在配合物1中,钴离子间存在着弱的反铁磁偶合作用,理论拟合值为J=-2.1 cm-1,g=2.18;配合物2中,铜离子间的磁作用较复杂.Two novel phosphonates Co2 ( NH3CH2CH2C (OH) ( PO3 ) (PO3H) ) 2 · 2H2O ( 1 ) and Cu3 {[ NH3CH2CH2C (OH) (PO3) 2 ] ( H2O) 2 } ( 2 ) were prepared by the reactions of Co (Ⅱ) and Cu (Ⅱ) with 3-ammonium-l-hydrexypropylidene-1,1 '- bisphosphonate. Their structures were confirmed by X-ray structural diffraction, elemental analysis and IR data, and their magnetic behaviors were studied in the temperature range of 5.0 - 300 K. Magnetic measurements show antiferromagnetic coupling between the colbat (Ⅱ) ions in complex1 ; the best fittings to the experimental magnetic susceptibilities gave J = -2. 1 cml, g = 2. 18 for 1. For complex 2,the magnetic behavior of Cu(Ⅱ) ions is complicated.
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