Abstract Manganese(ii) complexes of oxalic dihydrazones {N,N′-bis[2-hydroxynaphthylidene]amino]oxamide (BHO) and N,N′-bis[2-methoxybenzylidene]amino]oxamide (BMO)} have been synthesized by a general methodology. Hydrazone ligands (BHO and BMO) were obtained by the condensation of oxalic dihydrazide with 2-hydroxynaphthalene-1-carbaldehyde and 2-methoxybenzaldehyde. From the data obtained from the spectral (mass, IR, 1H-NMR, UV-Vis, ESR), magnetic and thermal measurements in addition to the elemental analyses (CHNM), the structures of ligands and their complexes have been determined. The scanning electron microscope (SEM) was used to characterize the morphology of the complex surface. The ligands coordinated with the metal center in a bi-dentate way forming binuclear Mn–BHO and mononuclear Mn–BMO complexes. The manganese complexes are proposed to have octahedral stereochemistry. The ligands and manganese(ii) complexes have been assessed for their antibacterial and antileukemia activities. The proliferation hindrance for the free ligands was enhanced upon coordination with the manganese(ii) ions.

中文翻译：

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N,N'-双[2-羟基亚萘基]/[2-甲氧基苯亚甲基]氨基]草酰胺及其二价锰配合物：分离、光谱表征、形态学、抗菌和对白血病细胞的细胞毒性

摘要 草酸二腙{N,N'-双[2-羟基亚萘基]氨基]草酰胺(BHO)和N,N'-双[2-甲氧基亚苄基]氨基]草酰胺(BMO)}的锰(ii)配合物已通过以下方法合成一种通用的方法论。腙配体（BHO和BMO）通过草酸二酰肼与2-羟基萘-1-甲醛和2-甲氧基苯甲醛缩合获得。从光谱（质量、IR、1H-NMR、UV-Vis、ESR）、磁和热测量以及元素分析 (CHNM) 获得的数据中，已经确定了配体及其配合物的结构。扫描电子显微镜 (SEM) 用于表征复杂表面的形貌。配体以双齿方式与金属中心配位，形成双核 Mn-BHO 和单核 Mn-BMO 配合物。建议锰配合物具有八面体立体化学。已经评估了配体和锰 (ii) 配合物的抗菌和抗白血病活性。与锰 (ii) 离子配位后，游离配体的增殖障碍增强。