生物活性Cr(III),Co(II) 和Mn(II) 复合物与N'((3-Hydroxynaphthalen-2-yl) methylene) picolinohydrazide:结构,计算和生物学研究
Yasmeen G Abou El-Reash1, Saja Abdulrahman Althobaiti2, Sahar Abdalla1
1Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia.
ACS omega
|October 27, 2025
概括
新型生物活性金属复合物Cr,Co和Mn使用希夫基联结体进行了合成. 这些复合物显示出有前途的DNA降解,抗菌和抗癌活性,复合物对癌症细胞系表现出显著的有效性.
科学领域:
- 协调化学 协调化学
- 生物有机化学 生物有机化学
- 材料科学 材料科学 材料科学
背景情况:
- 希夫基联结体为金属离子提供了多功能协调点.
- 金属复合物被用于各种生物应用,包括抗微生物和抗癌疗法.
- 了解金属-连接体相互作用对于设计有效的治疗剂至关重要.
研究的目的:
- 使用希夫基联结体合成和表征新型生物活性金属复合物Cr (III),Co (II) 和Mn (II).
- 研究这些复合物的协调行为,稳定性和生物活动 (DNA降解,抗菌,抗癌).
- 用计算方法阐明配体-受体相互作用.
主要方法:
- 通过直接的金属-连接体反应合成金属复合物.
- 使用光谱 (FT-IR,UV-Vis,1H NMR,MS),PXRD,磁感应和热分析进行了表征.
- 生物评估包括DNA降解分析,MIC确定,细胞毒性测试和分子对接.
主要成果:
- 综合体呈现出不同的几何形状 (四面体为Co(II) /Mn(II),八面体为Cr(III)).
- 在非自发分解路径下观察到高热稳定性.
- 显著的核酶类活性 (Co2复合物),强烈的抗菌活性 (Mn2复合物) 和高抗癌疗效 (Co2复合物) 已被证明.
- 分子对接揭示了与DNA目标的强烈非共价相互作用.
结论:
- 合成的希夫基金属复合物具有显著的生物潜力.
- 复合物特别有望作为抗癌剂.
- 对这些复合物的进一步研究可能会导致新的治疗策略.
相关概念视频
Colors and Magnetism
13.9K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
13.9K
Structural Isomerism
21.5K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
21.5K
Crystal Field Theory - Octahedral Complexes
30.6K
Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
30.6K
Valence Bond Theory
11.2K
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...
11.2K
Metal-Ligand Bonds
23.9K
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...
23.9K
Coordination Compounds and Nomenclature
26.2K
In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For instance, the four valence electrons of carbon overlap with electrons from four hydrogen atoms to form CH4. The one valence electron leaves sodium and adds to the seven valence electrons of chlorine to form the ionic formula unit NaCl (Figure 1a). Transition metals do not normally bond in this fashion. They primarily form coordinate covalent bonds, a...
26.2K


