欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
为探讨有机配体上取代基团对反应平衡的影响,在模拟生理条件下（0.15mol/L NaCl溶液）,应用多核（^1H,^13C和^51V）多维（DOSY）以及变温NMR技术研究双过氧钒配合物[OV（O2）2（D2O）]^-/[OV（O2）2（HOD）]^-（简写为bpV）与取代吡啶的相互作用.bpV与有机配体的反应性从强到弱的顺序为：皮考林酸根〉异烟酸根〉异烟酸甲酯〉皮考林甲酯,这说明吡啶环上同一位置上的不同取代基团和同一取代基团在不同位置上都影响反应平衡,竞争配位导致一系列新的6配位（配体为异烟酸根和异烟酸甲酯）或7配位（配体为皮考林酸根和皮考林甲酯）的过氧钒物种[OV（O2）2L]^n-（L=取代吡啶,n=1或2）生成,密度泛函计算结果较合理地解释了实验结果,并表明溶剂化在反应中起重要作用.
英文摘要：
To understand the substitution group effects of organic ligands on the reaction equilibrium, the interactions between diperoxovanadate complex [OV（O2）2（D20）]^-/[OV（O2）2（HOD）]^- （abbr. bpV） and a series of substituted pyridines were explored using multinuclear （^1H, ^13C, and ^51V） magnetic resonance, DOSY, and variable temperature NMR in 0.15 mol/L NaCl ionic medium for mimicking the physiological condition. The reactivity order among the substituted pyridines and bpV is picolinate〉isonicotinate〉 methyl isonicotinate〉methyl picolinate. The competitive coordination results in the formation of a series of new six-coordinated （isonicotinate and methyl isonicotinate） or seven-coordinated （picolinate and methyl picolinate） peroxovanadate species [OV（O2）2L]^n- （L= substituted pyridines, n= 1 or 2）. Both the different substitution groups at the same position and the same groups at the different substitution position affect these reactions. The results of density functional calculations provide someway a reasonable explanation for the relative reactivity of the substituted pyridines. Solvation effects play an important role in these reactions.
同期刊论文项目
同项目期刊论文
Spectroscopic and theoretical study on the interaction between diperoxovanadate complexes and glycyl
Study on the coordination and solution structures for the interaction systems between biperoxidovana
The investigation of the interaction between NCP-EDA and bovine serum albumin by spectroscopic appro
The investigation of the interaction between edaravone and bovine serum albumin by spectroscopic app
Study on the interaction between salvianic acid A sodium and bovine serum albumin by spectroscopic m
Study of the interaction between N-confused porphyrin and bovine serum albumin by fluorescence spect
The fluorescence spectroscopic study on the interaction between imidazo[2,1-b]thiazole analogues and
NMR and theoretical study on interactions between diperoxovanadate complex and 4-substituted pyridin
Characteristics and nature of the intermolecular interactions between thiophene and XY(X, Y=F,Cl, Br
Synthesis of N1-Substituted 1,2,3,6-Tetrahydropyrimidin-2-ones via an Unexpected Reaction of Thiazol
Synthesis of [1,2,4]Oxadiazolo[4,5-a]thiazolo[2,3-b]pyrimidin-9(10H)-ones via 1,3-Dipolar Cycloaddit
Spectroscopic studies on the interactions between 3,4-dihydropyrimidin-2(1H)-ones and bovine serum a
Synthesis of Trispiro[oxindole-pyrrolidine]-cyclopentanone-isoxazolines by 1,3-Dipolar Cycloaddition
Spectroscopic investigation of the interaction between diperoxovanadate complexes and benzimidazole-
Label-free optical biosensor based on localized surface plasmon resonance of immobilized gold nanoro
Study on the interaction between dihydromyricetin and bovine serum albumin by spectroscopic techniqu
期刊信息
位置：