Dr. Pengju Ji 吉鹏举:
Dr. Pengju Ji graduated from the University of Huddersfield, UK, with a PhD degree in physical organic chemistry (with Profs. Mike Page and John Atherton), after 2 years postdoc with Prof. Jin-Pei Cheng at Tsinghua University, Beijing, China, he is now a faculty member of the Chemistry Department of Tsinghua University. His research interests mainly cover the solvation and solvent effects of non-aqueous solvents, such as liquid ammonia and more recently ionic liquids. He is also interested with the bond transformation and organic reaction mechanism in these solvents.
Education:
1995.9-1999.7 BSc, Chemistry Department, Northwest University, Xi'an, China
2002.9-2005.7 MSc in Organic Synthesis, Chemistry Department, Northwest University, Xi'an, China
2008.1-2011.4 PhD in Physical Organic Chemistry, School of Applied Sciences, Department
of Biological and Chemical Sciences, University of Huddersfield, UK.
Academic Career:
2005.9-2008.1 Research Assistant, Sinopec Centre of Petrolum Science&Technology, Tianjin University;
2012.3-2012.9 Visiting Scholar, State Key Laboratory of Elemento Organic Chemistry, Nankai University;
2012.10-2014.10 Postdoc, Chemistry Department, Tsinghua University;
2015.1- now Assistant Prof., Chemistry Department, Tsinghua University.
Publications:
30) Ji, P. pKa in Ionic Liquids, in Encyclopedia of Ionic Liquids, Zhang, S., Eds., Springer, Singapore, 2021.
29) Li, Z.; Ji, P.*; Cheng, J.-P.* Brönsted Basicities and Nucleophilicities of N-Heterocyclic Olefins in Solution: N-Heterocyclic Carbene Vs. N- Heterocyclic Olefin-Which is More Basic and Which is More Nucleophilic? J. Org. Chem. 2021, 86, 2974.
28) Wang, Z.*; Niu, H.-Q.; Xue, X.-S.; Ji, P.* The Brönsted Basicities of N-Heterocyclic Olefins in DMSO: An Effective Way to Evaluate the Stability of NHO-CO2 Adducts. J. Org. Chem. 2020, 85, 13204.
27) Gao, F. X.; Ji, P.*; Cheng, J.-P.* Unexpected Strong Acidity Enhancing Effect in Protic Ionic Liquids Quantified by Equilibrium Acidity Studies: Crucial Role of Cation Structures on Dictating the Solvation Properties. J. Org. Chem. 2020, 85, 3041.
26) Wang, Z.*; Xue, X.-S.; Fu, Y.; Ji, P.* Comprehensive Basicity Scales for N-Heterocyclic Carbenes in DMSO: Implications on the Stabilities of NHC-CO2 Adducts. Chem.−Asian J. 2020, 15, 169.
25) Triolo, A.; Celso, F. L.; Ottaviani, C.; Ji, P.; Appetecchi, G. B.; Leonelli, F.; Keeble, D. S.; Russina, O. Structural Features of Selected Protic Ionic Liquids Based on a Super-strong Base. Phys. Chem. Chem. Phys. 2019, 21, 25369.
24) Gao, F. X.+; Wang, Z.+; Ji, P.*; Cheng, J.-P.* CO2 Absorption by DBU-Based Protic Ionic Liquids: Basicity of Anion Dictates the Absorption Capacity and Mechanism. Front. Chem. 2019, 6:658. [DOI: 10.3389/fchem.2018.00658]
23) Gao, F. X.; Ji, P.*; Cheng, J.-P.* Equilibrium Acidities of Nitroalkanes in an Ionic Liquid. J. Org. Chem. 2018, 83, 14962.
22) Wang, Z.; Wang, F.; Xue, X.-S.*; Ji, P.* Acidity Scale of N-Heterocyclic Carbene Precursors: Can We Predict the Stability of NHC-CO2 Adducts? Org. Lett. 2018, 20, 6041.
21) Yang, J.-D.+; Ji, P.+; Xue, X.-S.; Cheng, J.-P.* Recent Advances and Advisable Applications of Bond Energetics in Organic Chemistry. J. Am. Chem. Soc. 2018, 140, 8611. [Perspective]
20) Wang, Z.; Zheng, Y.-J.; Zheng, Y.; Xue, X.-S.*; Ji, P.* A Systematic Theoretical Study on the Acidities for Cations of Ionic Liquids in Dimethyl Sulfoxide. J. Phys. Chem. A 2018, 122, 5750.
19) Wang, Z.; Gao, F. X.; Ji, P.*; Cheng, J.-P.* Unexpected Solvation-stabilisation of Ions in a Protic Ionic Liquid: Insights Disclosed by a Bond Energetic Study. Chem. Sci. 2018, 9, 3538.
18) Xue, X.-S.+; Ji, P.+; Zhou, B.; Cheng, J.-P.* The Essential Role of Bond Energetics in C–H Activation/Functionalization. Chem. Rev. 2017, 117, 8622.
17) Wang, Z.-D.; Li, X.; Ji, P.*; Cheng, J.-P.* Absolute pKas of Sulfonamides in Ionic Liquids: Comparisons to Molecular Solvents. J. Org. Chem. 2016, 81, 11195.
16) Mao, C.; Wang, Z.-D.; Wang, Z.; Ji, P.*; Cheng, J.-P.* Weakly Polar Aprotic Ionic Liquids Acting as Strong Dissociating Solvent: A Typical “Ionic Liquid Effect” Revealed by Accurate Measurement of Absolute pKa of Ylide Precursor Salts. J. Am. Chem. Soc. 2016, 138, 5523.
15) Mao, C.; Wang, Z.; Ji, P.*; Cheng, J.-P.* Is Amine a Stronger Base in Ionic Liquid Than in Common Molecular Solvent? An Accurate Basicity Scale of Amines. J. Org. Chem. 2015, 80, 8384.
14) Xue, X.-S.; Wang, Y.; Yang, C.; Ji, P.; Cheng, J.-P.* Toward Prediction of the Chemistry in Ionic Liquids: An Accurate Computation of Absolute pKa Values of Benzoic Acids and Benzenethiols. J. Org. Chem. 2015, 80, 8997.
13) Wang, Z.; Ji, P.*; Li, X.; Cheng, J. -P.* Double-Line Hammett Relationship Revealed through Precise Acidity Measurement of Benzenethiols in Neat Ionic Media: A Typical “Ionic Liquid Effect”? Org. Lett. 2014, 16, 5744.
12) Wang, Z.; Deng, H.; Li, X.*; Ji, P.; Cheng, J.-P.* Standard and Absolute pKa Scales of Substituted Benzoic Acids in Room Temperature Ionic Liquids. J. Org. Chem. 2013, 78, 12487.
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11) Ji, P.; Atherton, J. H.*; Page, M. I.* The Kinetics and Mechanisms of Organic Reactions in Liquid Ammonia. J. Chem. Soc., Faraday Discussions, 2010, 145, 15.
10) Ji, P.; Atherton, J. H.; Page, M. I.* Liquid Ammonia as a Dipolar Aprotic Solvent for Aliphatic Nucleophilic Substitution Reactions. J. Org. Chem. 2011, 76, 1425.
9) Ji, P.; Atherton, J. H.; Page, M. I.* The Kinetics and Mechanisms of Aromatic Nucleophilic Substitution Reactions in Liquid Ammonia. J. Org. Chem. 2011, 76, 3286.
8) Ji, P.; Powles, N. T.; Atherton, J. H.; Page, M. I.* Ionization of Carbon Acids in Liquid Ammonia. Org. Lett. 2011, 13, 6118.
7) Ji, P.; Atherton, J. H.; Page, M. I.* Copper(I)-catalyzed Amination of Aryl Halides in Liquid Ammonia. J. Org. Chem. 2012, 77, 7471.
6) Ji, P.; Atherton, J. H.; Page, M. I.* Organic Reactivity in Liquid Ammonia. Org. Biomol. Chem. 2012, 10, 5732. [Perspective]
5) Ji, P.; Atherton, J. H.; Page, M. I.* Copper Catalysed Azide–alkyne Cycloaddition (CuAAC) in Liquid Ammonia. Org. Biomol. Chem. 2012, 10, 7965.
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4) Sun, X. H.; Liu, Y. F.; Tan, Z. C.; Ji, P.; Wang, M. H. Chin. J. Chem. 2005, 23, 1490.
3) Sun, X. H.; Ji, P.; Liu, Y. F.; Chen, B.; Jia, Y. Q. Chin. J. Org. Chem. 2005, 25, 724.
2) Sun, X. H.; Wang, H. F.; Liu, Y. F.; Chen, B.; Ji, P.; Yang, J. W. Chin. J. Org. Chem. 2004, 24, 506.
1) Zhang, Z. L.; Du, G.; Ji, P.; Zhu, J.; Jing, X. Chin. J. Environ. Eng. 2007, 1, 141.
Contact Details:
Email: jipengju@mail.tsinghua.edu.cn
S902B, Meng Min Wai Science and Technology Bldg,
Centre of Basic Molecular Science (CBMS), Dept. of Chemistry,
Tsinghua University, Beijing 100084, China.
(O):+86-10-62786053
(F):+86-10-62787136