Home

Citation: Zhu Zhi-Ang, Yan Xi, Zhang Zhi-Hui, Ma Gang, Lin Hua-Kuan, Chen Rong-Ti. Thermodynamics and Kinetics of Coordination Reaction of Imidazolates with Cobalt(II) Porphyrin[J]. Acta Physico-Chimica Sinica, ;1996, 12(04): 372-376. doi: 10.3866/PKU.WHXB19960418 shu

Thermodynamics and Kinetics of Coordination Reaction of Imidazolates with Cobalt(II) Porphyrin

1.
Department of Chemistry,Nankai University,Tianjin 300071

Received Date: 29 June 1995
Available Online: 15 April 1996

The thermodyntamics of axial coordination reaction of Cobalt(Ⅱ)(p-OCH3)TPP with various ligands [L=Im(imidazole), MeIm (2-methydrimidazole), EMIm (2-ethyl-4-methylimidazole)] at different temperatures in dichloromethane solvent have been studied.
Cobalt(Ⅱ)(p-OCH3)TPP+nL↔ Cobalt(Ⅱ)(p-OCH3)TPP﹒Ln
The equilibrium constant (β) and stoichiometric number (n) of reaction (1) were measured by means of Shimadzu UV-240 spectrophotometer. The changes of standard molar enthalpy △ rHm? and molar entropy △rSm? of reaction (1) were calculated. The steric and electronic effects of the three axial ligands on the reaction were compared.
The kinetic study for the axial coordination faster reaction of Cobalt(Ⅱ) (p-OCH3)TPP with Im in dichloromethane at different temperatures by means of a Union Giken RA-401 stopped-flow spectrophotometer was reported. The mechanism of reaction (1) was postulated as follows:
Co(Ⅱ)(p-OCH3) TPP+ Im↔ Co(Ⅱ)(p-OCH3) TPP﹒Im
Co(Ⅱ)(p-OCH3) TPP﹒Im+Im→Co(Ⅱ)(p-OCH3) TPP﹒(Im)2
The parameters K and k were evaluated. The △ rHm?, △rSm? of a pre-equilibrium step (2) and △r≠Hm, △r≠Sm of a rate-determining step (3) were also calculated.

By using an LKB2277 Bioactivity Monitor, we have determined the thermogenesis power curves of four kinds of Brucellas S2(55007), M5 (55009),83-202,83-980. And established the thermokinetic equation for the process of cell growth inhibited by the products of metabolism, as:
Ln[1/(β﹒Pt)-1]=ln[1/(β﹒P0)-1]-k0﹒t
From this equation, the rate constants of cell growth k [= k0(1 - β﹒P0)] were obtained. This thermokinetic equation is very suitable for cell growth of separated culture and is very important for the study of bacterial limited growth and their characteristics.
- α,β,γ,δ-tetra(ρ-methoxypheny)porphinatocobalt(II),
- Imidazolate ligands,
- UV-Vis spectrophotometer,
- Stopped-flow spectrophotometer,
- Equilibrium constant,
- Mechanism of reaction
1. [1]
  Li Zhou , Yulin Ma , Qiaohong Liu , Mei Yan , Yunchen Du . Design of physical chemistry experiment based on comprehensive ability training: a case study of “determination of liquid-phase reaction equilibrium constant”. University Chemistry, 2026, 41(7): 274-281. doi: 10.12461/PKU.DXHX202505051
2. [2]
  Xiuyun Wang , Faqiong Zhao , Yuwen Liu , Yijun Li , Yong Fan , Dongcheng Liu , Juanjuan Song , Yanping Ren , Wan Li , Yongxian Fan , Xiuqiong Zeng , Wenwei Zhang , Mei Shi , Min Hu , Xiaohang Qiu , Weihong Li , Jinarong Zhang , Shuyong Zhang . Spectrophotometry and Suggestions on Operating Specifications for Spectrophotometer. University Chemistry, 2026, 41(3): 200-207. doi: 10.12461/PKU.DXHX202507116
3. [3]
  Guowen Xing , Guangjian Liu , Le Chang . Five Types of Reactions of Carbonyl Oxonium Intermediates in University Organic Chemistry Teaching. University Chemistry, 2025, 40(4): 282-290. doi: 10.12461/PKU.DXHX202407058
4. [4]
  Jiajie Li , Xiaocong Ma , Jufang Zheng , Qiang Wan , Xiaoshun Zhou , Yahao Wang . Recent Advances in In-Situ Raman Spectroscopy for Investigating Electrocatalytic Organic Reaction Mechanisms. University Chemistry, 2025, 40(4): 261-276. doi: 10.12461/PKU.DXHX202406117
5. [5]
  Yang Wang , Shuangliang Liu , Jianbo Zhao . Exploring the mechanism of Diels-Alder reaction: a computational chemistry experiment for undergraduate students. University Chemistry, 2026, 41(7): 257-265. doi: 10.12461/PKU.DXHX202504061
6. [6]
  Ronghao Zhao , Yifan Liang , Mengyao Shi , Rongxiu Zhu , Dongju Zhang . Investigation into the Mechanism and Migratory Aptitude of Typical Pinacol Rearrangement Reactions: A Research-Oriented Computational Chemistry Experiment. University Chemistry, 2024, 39(4): 305-313. doi: 10.3866/PKU.DXHX202309101
7. [7]
  Peng YUE , Liyao SHI , Jinglei CUI , Huirong ZHANG , Yanxia GUO . Effects of Ce and Mn promoters on the selective oxidation of ammonia over V₂O₅/TiO₂ catalyst. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 293-307. doi: 10.11862/CJIC.20240210
8. [8]
  Chunfang Zhang , Yuehua Liu , Lin Yang , Wenhui Xu , Mingtao Run , Cuimiao Zhang . 醋酸电离平衡常数测定实验的改进. University Chemistry, 2026, 41(5): 131-140. doi: 10.12461/PKU.DXHX202511002
9. [9]
  Wentao Lin , Wenfeng Wang , Yaofeng Yuan , Chunfa Xu . Concerted Nucleophilic Aromatic Substitution Reactions. University Chemistry, 2024, 39(6): 226-230. doi: 10.3866/PKU.DXHX202310095
10. [10]
  Zhi Chai , Huashan Huang , Xukai Shi , Yujing Lan , Zhentao Yuan , Hong Yan . Wittig反应的立体选择性. University Chemistry, 2025, 40(8): 192-201. doi: 10.12461/PKU.DXHX202410046
11. [11]
  Bolin Sun , Jie Chen , Ling Zhou . 乙烯型卤代烃的亲核取代反应. University Chemistry, 2025, 40(8): 152-157. doi: 10.12461/PKU.DXHX202410032
12. [12]
  Anqi LI , Wenjing YANG , Xueming LI , Yanfong REN . Performance and mechanism of a foam Ti/FeCo-Fe₂O₃-CoFe₂O₄/SnO₂-Sb anode for synergistic activation of peroxymonosulfate toward degradation of organic pollutants. Chinese Journal of Inorganic Chemistry, 2026, 42(5): 944-958. doi: 10.11862/CJIC.20250323
13. [13]
  Hongting Yan , Aili Feng , Rongxiu Zhu , Lei Liu , Dongju Zhang . Reexamination of the Iodine-Catalyzed Chlorination Reaction of Chlorobenzene Using Computational Chemistry Methods. University Chemistry, 2025, 40(3): 16-22. doi: 10.12461/PKU.DXHX202403010
14. [14]
  Aili Feng , Xin Lu , Peng Liu , Dongju Zhang . Computational Chemistry Study of Acid-Catalyzed Esterification Reactions between Carboxylic Acids and Alcohols. University Chemistry, 2025, 40(3): 92-99. doi: 10.12461/PKU.DXHX202405072
15. [15]
  Ling Fan , Meili Pang , Yeyun Zhang , Yanmei Wang , Zhenfeng Shang . Quantum Chemistry Calculation Research on the Diels-Alder Reaction of Anthracene and Maleic Anhydride: Introduction to a Computational Chemistry Experiment. University Chemistry, 2024, 39(4): 133-139. doi: 10.3866/PKU.DXHX202309024
16. [16]
  Wanping Chen . Construction of Knowledge Logic and Discovery through Reasoning: Summarizing the Reaction Patterns of Reactive Metals with Oxygen. University Chemistry, 2026, 41(2): 95-102. doi: 10.12461/PKU.DXHX202503108
17. [17]
  Heng Zhang . Determination of All Rate Constants in the Enzyme Catalyzed Reactions Based on Michaelis-Menten Mechanism. University Chemistry, 2024, 39(4): 395-400. doi: 10.3866/PKU.DXHX202310047
18. [18]
  Jiabo Huang , Quanxin Li , Zhongyan Cao , Li Dang , Shaofei Ni . Elucidating the Mechanism of Beckmann Rearrangement Reaction Using Quantum Chemical Calculations. University Chemistry, 2025, 40(3): 153-159. doi: 10.12461/PKU.DXHX202405172
19. [19]
  Liangting Chen , Jianxun Fan , Jinhong Gao , Tianxin Zhang . Applications of diverse data processing software in physical chemistry experiments: a case study on determining acetic acid’s equilibrium constant via conductivity method. University Chemistry, 2026, 41(6): 457-466. doi: 10.12461/PKU.DXHX202504002
20. [20]
  Yingchun ZHANG , Yiwei SHI , Ruijie YANG , Xin WANG , Zhiguo SONG , Min WANG . Dual ligands manganese complexes based on benzene sulfonic acid and 2, 2′-bipyridine: Structure and catalytic properties and mechanism in Mannich reaction. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1501-1510. doi: 10.11862/CJIC.20240078

Get Citation

PDF

XML

Metrics

PDF Downloads(2357)
Abstract views(4143)
HTML views(40)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return