摘要
This paper reports the preparation of three di‑iron complexes containing a thiazole moiety.Esterification of complex[Fe_(2)(CO)_(6)(μ‑SCH_(2)CH(CH_(2)OH)S)](1)with 4‑methylthiazole‑5‑carboxylic acid gave the corresponding ester[Fe_(2)(CO)_(6)(μ‑tedt)](2),where tedt=SCH_(2)CH(CH_(2)OOC(5‑C_(3)HNSCH_(3)))S.Further reactions of complex 2 with tri(ptolyl)phosphine(tp)or tris(4‑fluorophenyl)phosphine(fp)gave the phosphine‑substituted derivatives[Fe_(2)(CO)_(5)(tp)(μ‑tedt)](3)and[Fe_(2)(CO)_(5)(fp)(μ‑tedt)](4).The structures of the newly prepared complexes were elucidated by elemental analysis,NMR,IR,and X‑ray photoelectron spectroscopy.Moreover,single‑crystal X‑ray diffraction analysis confirmed their molecular structures,showing that they contain a di‑iron core ligated by a bridged dithiolate bearing a thiazole moiety and terminal carbonyls.The electrochemical and electrocatalytic proton reduction were probed by cyclic voltammetry,revealing that three complexes can catalyze the reduction of protons to H_(2) under the electrochemical conditions.For comparison,complex 4 possessed the best efficiency with a turnover frequency of 23.5 s^(-1)at 10 mmol·L^(-1)HOAc concentration.In addition,the fungicidal activity of these complexes was also investigated in this study.CCDC:2477511,2;2477512,3;2477513,4.
含羟基官能团的二铁配合物[Fe_(2)(CO)_(6)(μ-SCH_(2)CH(CH_(2)OH)S)](1)与4-甲基噻唑-5-羧酸经酯化反应合成了配合物[Fe_(2)(CO)_(6)(μ-tedt)](2),其中tedt=SCH_(2)CH(CH_(2)OOC(5-C_(3)HNSCH_(3)))S。配合物2中的一个羰基被三(对甲苯基)膦(tp)或三(4-氟苯基)膦(fp)取代得到了衍生物[Fe_(2)(CO)_(5)(tp)(μ-tedt)](3)和[Fe_(2)(CO)_(5)(fp)(μ-tedt)](4)。配合物2~4的结构除元素分析、核磁共振波谱、红外光谱以及X射线光电子能谱的表征外,还进一步得到单晶X射线衍射的确证。采用循环伏安技术研究了这些新合成配合物的电化学性质以及电催化质子还原生成氢气的活性。结果表明这些配合物均可以催化质子还原产生氢气,其中配合物4的催化效率是三者中最高的,在酸浓度10 mmol·L^(-1)时,转换频率可以达到23.5 s^(-1)。此外,还研究了这些配合物的抗菌活性。
出处
《无机化学学报》
北大核心
2026年第2期355-364,共10页
Chinese Journal of Inorganic Chemistry
基金
浙江省自然科学基金(No.LY19B020002)资助。
