一个新的 (II) 复合物与N,S供体希夫基:结构特征,DFT,TD-DFT研究和催化调查
Manas Chowdhury1, Niladri Biswas2, Sandeepta Saha3
1Department of Chemistry, West Bengal State University, Barasat, Kolkata-700126, India. manaschem11@gmail.com.
Acta chimica Slovenica
|December 21, 2023
概括
一种新的 (II) 硫化亚复合物被合成和特征化. 这个复合体表现出使用酶动力学评估的催化活性,其速率常数为708 h-1.
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:
- 西米卡巴连接体是协调化学中的多功能构建块.
- 尼克尔复合物被用于各种催化应用.
- 来自化物和二氧化基的希夫基联体提供可调节的电子和硬质性质.
研究的目的:
- 为了合成和表征一种新的单核 ((II) 西米亚巴复合物.
- 用计算方法研究合成复合物的电子性质.
- 在模型反应中评估 (II) 复合物的催化潜力.
主要方法:
- 从p-anisaldehyde和thiosemicarbazide中合成 (II) 硫化碳复合物.
- 使用光谱技术 (例如,IR,UV-Vis,NMR) 和单晶X射线衍射进行表征.
- 使用时间依赖密度函数理论 (TD-DFT) 与可极化连续模型 (PCM) 的电子光谱的计算模拟.
主要成果:
- 成功合成并充分阐明单核 (II) 硫化碳复合物的结构 (1).
- TD-DFT计算为电子转换提供了洞察力,模拟了实验性电子光谱.
- 该复合体表现出催化活性,迈凯利斯-门运动分析得出速率常数 (kcat) 约为708h-1.
结论:
- 一个新的 (II) 硫化碳复合物已成功合成和表征.
- 这项研究强调了TD-DFT在理解这些复杂物体的电子特性方面的实用性.
- 该复合体显示出有前途的催化性能,表明了在催化中的潜在应用.
相关概念视频
Valence Bond Theory
8.6K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
8.6K
Metal-Ligand Bonds
20.8K
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
20.8K
Crystal Field Theory - Tetrahedral and Square Planar Complexes
42.6K
Tetrahedral Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
42.6K


