Kun Zhang, Daoxin Wang, Shuangquan Wu, Chengeng Wang, Zhengguang Yu, Lei Zhang
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引用次数: 0
Abstract
Based on the template-assisted cyclocondensation procedure, two Schiff-base macrocyclic mononuclear lanthanide complexes (Pr-2l and Nd-2l) with the “lasso-type” architecture have been synthesized. According to X-ray structure analysis, the central ten-coordinate lanthanide ions (Pr3+ and Nd3+) in two complexes have distorted bicapped square antiprism geometry, and this geometry is completely encircled by two axial chelating nitrates on each side of the 23-membered macrocyclic plane and six donors in the macrocyclic skeleton. With the higher relatively inhibitory rates, the complex Pr-2l can show significant antimicrobial activities against C. albicans and MRSA with lower MIC values (7.81 and 3.91 μg·mL−1), while complex Nd-2l exhibited good antimicrobial activities for S. aureus, C. albicans, and MRSA whose MIC values are 1.95, 7.81, and 3.91 μg·mL−1. This current work is believed to provide another practical approach to further construct new antimicrobial materials by the use of Schiff-base and lanthanide antimicrobial fragments.
期刊介绍:
Structural Chemistry is an international forum for the publication of peer-reviewed original research papers that cover the condensed and gaseous states of matter and involve numerous techniques for the determination of structure and energetics, their results, and the conclusions derived from these studies. The journal overcomes the unnatural separation in the current literature among the areas of structure determination, energetics, and applications, as well as builds a bridge to other chemical disciplines. Ist comprehensive coverage encompasses broad discussion of results, observation of relationships among various properties, and the description and application of structure and energy information in all domains of chemistry.
We welcome the broadest range of accounts of research in structural chemistry involving the discussion of methodologies and structures,experimental, theoretical, and computational, and their combinations. We encourage discussions of structural information collected for their chemicaland biological significance.