Photoactive Pt<sup>II</sup> and Pd<sup>II</sup> complexes of <i>N</i>,<i>N</i>-diethyl-<i>N</i>′-3,4,5-trimethoxybenzoylthiourea: synthesis, crystal structures, DFT and cytotoxicity studies
作者:H. A. Nkabyo、O. R. Oyenihi、O. Olaoye、P. Sikiti、G. W. Bosman、R. C. Luckay
DOI:10.1039/d1nj02320a
日期:——
Photo-chemical isomerism of the cis-[PdII/PtII(L-κS,O)2] complexes of N,N-di-ethyl-N′-3,4,5-trimethoxy-benzoylthiourea (HL) in acetonitrile reversibly produces geometric trans-[PdII/PtII(L-κS,O)2] isomers in solution after irradiation with visible light, as determined by 1H NMR, UV-vis and reverse phase chromatography (RP-HPLC). Single-crystal X-ray diffraction studies reveal that the new trans-[PdII/PtII(L-κS
所述的光化学异构顺- [钯II /铂II(L-κ小号,ö)2 ]的络合物Ñ,ñ -二乙基- ñ '-3,4,5-三甲氧基苯甲酰硫脲(HL)在根据1 H NMR、UV-vis 和反相色谱 (RP-HPLC)测定,乙腈在用可见光照射后在溶液中可逆地产生几何反式-[Pd II /Pt II (L-κ S , O ) 2 ] 异构体. 单晶 X 射线衍射研究表明,新的反式-[PdII /Pt II (L-κ S , O κ S , O ) 2 ] 复合物在三斜P空间群中结晶,硫和氧供体原子在六元螯合物中相互反式排列。顺式和反式-[Pd II /Pt II (L-κ S , O ) 2 ] 复合物的结构分析在 B3LYP/CEP31-G 理论水平上使用时间依赖的 DFT 进行,表明顺式-[Pd II /Pt II (L-κ S, O ) 2 ] 配合物比它们的反式-[Pd II /Pt II (L-κ