Australian Journal of Chemistry ( IF 1.1 ) Pub Date : 2020-09-18 , DOI: 10.1071/ch20169 Dimuthu C. Senevirathna , Rebekah N. Duffin , Liam J. Stephens , Megan E. Herdman , Melissa V. Werrett , Philip C. Andrews
Diphenylphosphinothioic acid (HSP(=O)Ph2) and diphenylphosphinodithioic acid (HSP(=S)Ph2) have been used to synthesise four BiIII complexes: 1 [Bi(SP(=O)Ph2)3], 2 [BiPh(SP(=O)Ph2)2], 3 [BiPh2(SP(=O)Ph2)], and 4 [Bi(SP(=S)Ph2)3], using BiPh3 and [Bi(OtBu)3] as bismuth sources. The complexes have been characterised by NMR spectroscopy, mass spectrometry, infrared spectroscopy, powder X-ray diffraction, and singe crystal X-ray crystallography (2–4). Biological studies indicated that despite complexes 2 and 3 reducing mammalian cell viability, their antibacterial activity provides a good degree of selectivity towards both Gram positive and Gram negative bacterial strains. The minimum inhibitory concentrations for complexes 2 and 3 are in the range of 0.52–5.5 µM towards the bacteria tested. Homoleptic complexes 1 and 4 were generally less active towards both bacterial and mammalian cells.
中文翻译:
硫代磷酸铋(III):了解微小的原子变化如何影响抗菌活性和哺乳动物细胞活力
二苯基膦硫代酸(H SP(= O)Ph 2)和二苯基膦二硫代酸(H SP(= S)Ph 2)已用于合成四种Bi III配合物:1 [Bi(SP(= O)Ph 2)3 ],使用BiPh 3和2 [BiPh(SP(= O)Ph 2)2 ],3 [BiPh 2(SP(= O)Ph 2)]和4 [Bi(SP(= S)Ph 2)3 ]。[Bi(O t Bu)3]作为铋源。配合物的特点是NMR光谱法,质谱法,红外光谱法,粉末X射线衍射,和烧毛晶体X-射线晶体学(2 - 4)。生物学研究表明,尽管复合物2和3降低了哺乳动物细胞的活力,但它们的抗菌活性却对革兰氏阳性和革兰氏阴性菌提供了良好的选择性。复合物2和3对被测细菌的最小抑制浓度在0.52–5.5 µM的范围内。同感复合物1和4 通常对细菌和哺乳动物细胞的活性较低。