在双核复合物中的协调性硫酸盐,硫酸碳酸盐和酸盐的水解和转移活性 (II)
Anuj Baran Chakraborty1, Tuhin Ganguly1, Amit Majumdar1
1School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, West Bengal, India.
Inorganic chemistry
|July 6, 2023
概括
一种新型的双核 (II) 复合物[Zn2 (PhBIMP) (DMF) ]3+催化了酸盐中C-S键的水解裂变. 这种反应产生酒精/和硫化物桥梁复合物[Zn2(PhBIMP) ((μ-SH) ((DMF) ]2+,揭示了对C-S键激活的新见解.
科学领域:
- 协调化学 协调化学
- 有机金属化学 有机金属化学
- 催化剂是一种催化剂.
背景情况:
- C-S 键裂变是有机合成和生物过程中的关键转变.
- 金属复合物越来越多地被探索,因为它们能够调解具有挑战性的键激活.
- 了解金属复合物的C-S键裂解机制对于催化剂设计至关重要.
研究的目的:
- 为了研究新合成的双核Zn(II) 复合物的C-S键裂解活性,[Zn2(PhBIMP) ((DMF) 2 3+ .
- 阐明反应机制,包括确定关键中间体和产品.
- 为了比较不同桥接配体 (thiolate,thiobenzoate,benzeneselenolate) 的反应性及其转移反应性.
主要方法:
- 合成和表征双核Zn (II) 复合体,包括[Zn2 (PhBIMP) ] (DMF) ]3+,[Zn2 (PhBIMP) ] (μ-SH) ] (DMF) ]2+,[Zn2 (PhBIMP) ] (Cl) ]2+,[Zn2 (PhBIMP) ] (μ-SR) ]2+,[Zn2 (PhBIMP) ] (μ-SCOPh) ]2+,[Zn2 (PhBIMP) ] (μ-SCOPh) ]2+,[Zn2 (PhBIMP) ] (μ-SePh) ]2+,[Zn2 (PhBIMP) ] (μ-SePh) ]2+等.
- 用于结构阐明和反应监测的光谱和分析技术.
- 涉及水的影响的动力学和机械学研究,并基于复杂的反应性.
主要成果:
- 双核Zn (II) 复合物[Zn2 (PhBIMP) (DMF) ]3+有效地调解了各种硫酸盐的水解C-S键裂变.
- 一个硫化物桥接复合体,[Zn2(PhBIMP) ((μ-SH) ((DMF) ]2+,被确定为C-S键裂解的产物.
- 一种活性中间体,[Zn2(PhBIMP) ((μ-SR) ((OH) ]1+,被提出用于C-S键裂解反应.
- 观察到协调的硫酸的水解,产生了一种酸桥梁复合物.
- 二酸盐桥接复合物没有经过水解,突出了基于桥接配体的反应性差异.
- 进行比较的研究显示,桥接 -SH, -SPh, -SC(O) Ph和 -SePh联体的不同转移反应性.
结论:
- 双核Zn(II) 复合物是硫酸盐的水解C-S键裂变的有力催化剂.
- 这项研究提供了对双核金属复合体对C-S键激活的机制性见解.
- 反应性高度依赖于桥接硫或联体的性质.
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