Synthesis, Characterization and Magnetic Properties of New Dinuclear Copper(II) Complexes with N,N′-Disubstituted Dithiooxamides derived from α-Amino Acids
作者:J. Borrás、R. Carballo、A. Castiñeiras、M. C. Gómez-Conde、M. C. Fernández-Vidal、J. Niclós
DOI:10.1002/zaac.200570047
日期:2005.8
Four new dinuclear copper(II) complexes have been synthesized and have the general formula [Cu2(L)(H2O)2], where L = GLYDTO [N,N′-bis(carboxymethyl)dithiooxamide], ALADTO [N,N′-bis(carboxyethyl)dithiooxamide], VALDTO [N,N′-bis(1-carboxy-2-methylpropyl)dithiooxamide] and LEUDTO [N,N′-bis(1-carboxy-3-methylbutyl)dithiooxamide]. The complexes were characterized by elemental analysis as well as by IR,
已合成四种新的双核铜 (II) 配合物,其通式为 [Cu2 (L) (H2O) 2],其中 L = GLYDTO [N, N'-双(羧甲基)二硫代草酰胺]、ALADTO [N, N ' -双(羧乙基)二硫代草酰胺],VALDTO [N,N'-双(1-羧基-2-甲基丙基)二硫代草酰胺]和LEUDTO [N,N'-双(1-羧基-3-甲基丁基)二硫代草酰胺]。通过元素分析以及红外、电子和 EPR 光谱对配合物进行了表征。这些技术为存在 CuNO2S 发色团提供了证据。4-300 K 范围内所有配合物的磁化率测量表明存在显着的反铁磁相互作用,-J 值大于 300 cm - 1。通过热重法研究了配合物的热分解行为。