首页> 外文期刊>RSC Advances >Experimental and DFT studies of sulfadiazine 'piano-stool' Ru(ii) and Rh(iii) complexes
【24h】

Experimental and DFT studies of sulfadiazine 'piano-stool' Ru(ii) and Rh(iii) complexes

机译:磺胺嗪'钢琴凳'Ru(II)和RH(III)复合物的实验性和DFT研究

获取原文
获取原文并翻译 | 示例
           

摘要

While sulfadiazine (HLSZ) is extensively used to elaborate complexes of intriguing biological applications (e.g. topical antibiotic silvadene; silver sulfadiazine), the molecular structure modification of sulfadiazine or even other sulfa drugs by coordination to either eta(6)-cymene Ru(ii) or eta(5)-Cp* Rh(iii) motif has not been investigated. Here, half-sandwich organoruthenium(ii) and organorhodium(iii) compounds of the type [(eta(6)-p-cymene)Ru(L-SZ)(2)] (1) and [(eta(5)-C5Me5)Rh(L-SZ)(2)] (2) are synthesized, characterized and evaluated for their potential antimicrobial activity. Spectroscopic and single crystal X-ray analysis showed that L-SZ is coordinated to Rh(iii) via both the sulfonamide and pyrimidine nitrogen atoms forming "piano-stool" geometry. In 2, the NMR equivalence clearly pointed to participation of two L-SZ molecules in a fluxional process in which the third bond of the base of the stool is oscillating between two equivalent sulfonamide nitrogen atoms. While 1 was biologically inactive, complex 2 was potent against Gram-positive bacteria, Candida albicans and Cryptococcus neoformans. Hen white egg lysozyme (HEWL), a model protein, reacted covalently with 2via the loss of one L-SZ molecule, while compound 1 decomposed during the interaction with that protein.
机译:虽然磺胺嗪(HLSZ)广泛用于详细阐明有趣的生物应用的复合物(例如局部抗生素银酰胺;银磺酰胺),磺胺嗪的分子结构改性磺胺嗪或甚至通过协调与ETA(6)-CYMENE ru(II)的分子结构改性或者eta(5)-cp * rh(iii)主题尚未调查。这里,半三明治有机丁烯(II)和有机卤代(III)化合物[(eta(6)-p-cymene)Ru(l-sz)(2)](1)和[(Eta(5) - 合成C5ME5)RH(L-SZ)(2)](2),其特征和评估其潜在的抗微生物活性。光谱和单晶X射线分析显示L-SZ通过磺酰胺和嘧啶氮原子与形成“钢琴凳”几何形状的rH(III)配位。在2中,NMR等效物明确指出在势态过程中的两个L-SZ分子的参与,其中粪便碱的第三键在两个等同的磺酰胺氮原子之间振荡。虽然1在生物学上不活性,但复合物2有效地针对革兰氏阳性细菌,念珠菌蛋白和碱性细胞。母鸡白蛋溶菌酶(HEWL),模型蛋白质,共价反应,与2VIA失去一个L-SZ分子,而化合物1在与该蛋白质相互作用期间分解。

著录项

  • 来源
    《RSC Advances》 |2020年第18期|共8页
  • 作者单位

    Cairo Univ Dept Chem Fac Sci Gamma St Cairo 12613 Egypt;

    Julius Maximilians Univ Wurzburg Inst Anorgan Chem D-97074 Wurzburg Germany;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号