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32) Solanki, J. D.; Kumar Yadav, R. A.; Kesavan, K.; Siddiqui, I.; Jayakumar, J.; Jou, J.-H.; Surati, K. R. Heteroleptic Zinc(II) complex based stable solution-processed organic electroluminescent diodes.

Optical Materials., 2021, 119, 111305. (SCI, IF = 3.71)

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31) De, J.; Kumar Yadav, R. A.; Gupta, S. P.; Bala, I.; Joshi, M.; Choudhury, A. R; Jayakumar, J.; Jou, J.-H.; Cheng, C.-H.; Pal, S. K. Molecular Engineering for the Development of a Discotic Nematic Mesophase and Solid-State Emitter in Deep-Blue OLEDs.

J. Org. Chem. 2021, 86, 7256−7262. (SCI, IF = 4.86)

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30) Kumar, K.; Kesavan, K. K.; Thakur, D.; Banik, S.; Jayakumar, J.; Cheng, C.-H.; Jou, J.-H.;  Ghosh, S. Functional Pyrene–Pyridine-Integrated Hole-Transporting Materials for Solution-  Processed OLEDs with Reduced Efficiency Roll-Off.

ACS Omega, 2021, 93, 10515–10526. (SCI, IF = 4.16)

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29) Thakur, D.; Dubey, D. K.; Kumar Yadav, R. A.; Banik, S.; Jayakumar. J.; Cheng, C.-H.; Jou, J.-H.; Ghosh, S. Configuring device architecture with new solution-processable host for high-performance low color-temperature OLEDs with ultra-low driving voltage.

 Org. Electronics, 2021, 93, 106127 (SCI, IF = 3.87)

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28) Hsiao, H.-C.; Annamalai, P.; Jayakumar, J.; Sun, S.-Y.; Chuang, S.-C. Synthesis of Fluorescent 4‐Azapyrenes by Palladium(II)‐Catalyzed Dual C−H Bond Activation and Annulation. 

Adv. Synth. Catal. 2021. 363, 1695-1701. (SCI, IF = 5.98)

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27) Jayakumar,+ J.; Wu,+ W.-L.; Chang, C.-L.; Han, T.-Y.; Ting, L.-Y.; Yeh, C.-M.; Chou, H.-H. Highly Thermal Stable Electron-Transporting Materials using Triptycene Derivatives for OLEDs.

Org. Electronics, 2020, 88, 106013. (+These authors contributed equally SCI, IF = 3.87)

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26) Elsayed, M. H.; Jayakumar, J; Abdellah, M.; Mansoure, T. H.; Zheng, K.; Chang, C.-L.; Ting, L.-Y.; Lin, W.-C.; Elewa, A. M.; Yu, H.-H.; Wang, W.-H.; Chung, C.-C.; Chou, H.-H. Visible-Light-Driven Hydrogen Evolution using Nitrogen-Doped Carbon Quantum Dot-Implanted Polymer Dots as Metal-Free Photocatalysts. 

Appl Catal B. Environ. 2021, 119659. (SCI, IF = 24.35)

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2020 (7)

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25) Lin, W.-C.; Elsayed, M. H.; Jayakumar, J.; Ting, L.-Y.; Chang, C.-L.; Elewa, A. M.; Wang,  W.-S.; Chung, C.-C.; Lu, C.-Y.; Chou, H.-H. Design and Synthesis of Cyclometalated Iridium-based Polymer Dots as Photocatalysts for Visible Light-Driven Hydrogen Evolution.

Int. J. Hydrog. Energy, 2020, 45, 32072-32081. (SCI, IF = 7.15)

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24) Wang,+ W.-H.; Ting,+ L.-Y. Jayakumar, J; Chang, C.-L.; Lin, W.-C.; Chung, C.-C.; Elsayed, M. H.; Lu, C.-Y.; Elewa, A. M.; Chou, H.-H. Design and Synthesis of Phenylphosphine Oxide-Based Polymer Photocatalysts for Highly Efficient Visible-Light-Driven Hydrogen Evolution. 

Sustainable Energy Fuels, 2020, 4, 5264-5270. (+These authors contributed equally, SCI, IF = 6.83)

 

23) Bala, I.; Kumar Yadav, R. A.; Devi, M.; De, J.; Singh, N.; Kailasam, K.; Jayakumar, J.; Jou, J.-H.; Cheng, C.-H.; Pal, S. K. High-performing D–π–A–π–D benzothiadiazole-based hybrid local and charge-transfer emitters in solution-processed OLEDs. 

J. Mater. Chem. C 2020, 8, 17009-17015. (SCI, IF = 8.06)

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22) Hsieh, C.-M.; Wu, T.-L.; Jayakumar, J.; Wang, Y.-C.; Ko, C.‐L.; Hung, W.-Y.; Lin, T.-C.; Wu, H.-H.; Lin, K.-H.; Lin, C.-H.; Cheng, C.-H. Diboron-based Delayed Fluorescent Emitters with Orange-to-red emission and Superior OLEDs efficiency. 

ACS Appl. Mater. Interfaces 2020, 12, 23199–23206. (SCI, IF = 10.26)

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21) Jayakumar, J.; Chou, H.-H. Recent Advances in Visible-Light-Driven Hydrogen Evolution from Water using Polymer Photocatalysts. 

ChemCatChem 2020, 12, 689-704. (Special issue-minireview, Highly Cited article, SCI, IF = 5.69)

 

20) Jayakumar, J.; Vedarethinam, G.; Hsiao, H.-C.; Sun, S.-Y.; Chuang, S.-C. Cascade One-Pot Synthesis of Orange-Red Fluorescent polycyclic Cinnolino[2,3-f]Phenanthridin-9-Ium Salts by Palladium(II)-Catalyzed C-H Bond Activation of 2-Azobiaryls compounds and Alkenes.

Angew. Chem. Int. Ed. 2020, 59, 689-694. (Dedicated to Prof. Chien-Hong, Cheng on his 70th Birthday and Highlighted in Synfacts 2020, 16(02), 0156. IF = 16.74)

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19) Chang, C.-L.; Lin, W.-C.; Jia, C.-Y.; Ting, L.-Y.; Jayakumar, J.; Elsayed, M. H.; Yang, Y.-Q.; Chan, Y.-H.; Wang, W.-S.; Lu, C.-Y.; Chen, P.-Y.; Chou, H.-H. Low-Toxic Cycloplatinated Polymer Dots with Rational Design of Acceptor Co-Monomers for Enhanced Photocatalytic Efficiency and Stability. 

Appl Catal B. Environ. 2020, 268, 118436. (SCI, IF = 24.35)

 

2019 (4)

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18) Pandidurai, J.; Jayakumar, J.; Senthilkumar, N.; Cheng, C.-H. Effects of Intramolecular Hydrogen Bonding on the Conformation and Luminescence Properties of Dibenzoylpyridine-Based Thermally Activated Delayed Fluorescence Materials. 

J. Mater. Chem. C 2019, 7, 13104-13110. (IF = 8.09)

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17) Ting, L.-Y.;+ Jayakumar, J.;+ Chang, C.-L.; Lin, W.-C.; Elsayed, M. H.; Chou, H.-H. Effect of Controlling the Number of Fused Rings on Polymer Photocatalysts for Visible-Light-Driven Hydrogen Evolution. 

J. Mater. Chem. A 2019, 7, 22924-22929. (+ These authors contributed equally, IF = 14.43)

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16) Thangaraji, V.; Rajamalli, P.; Jayakumar, J.; Huang, M.-J.; Chen, Y.-W.; Cheng, C.-H. Quinolinylmethanone-Based Thermally Activated Delayed Fluorescence Emitters and the Application in OLEDs: Effect of Intramolecular H-Bonding. 

ACS Appl. Mater. Interfaces 2019, 11, 17128-17133. (IF = 10.26)

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15) Jayakumar, J.; Wu, T.-L.; Huang, M.-J.; Huang, P.-Y.; Chou, T.-Y.; Lin, H.-W.; Cheng, C.-H. Pyridine-Carbonitrile–Carbazole-Based Delayed Fluorescence Materials with Highly Congested Structures and Excellent OLED Performance. 

ACS Appl. Mater. Interfaces 2019, 11, 21042-21048. (IF = 10.26)

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2018 (3)

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14) Jou, J.-H.; Li, J.-L.; Sahoo, S.; Dubey, D. K.; Kumar Yadav, R. A.; Joseph, V.; Thomas, K. R. J.; Wang, C.-W.; Jayakumar, J.; Cheng, C.-H. Enabling a 6.5% External Quantum Efficiency Deep-Blue Organic Light-Emitting Diode with a Solution-Processable Carbazole-Based Emitter. 

J. Phys. Chem. C 2018, 122, 24295-24303. (IF = 4.73)

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13) Chiou, M.-F.; Jayakumar, J.; Cheng, C.-H.; Chuang, S.-C. Impact of the Valence Charge of Transition Metals on the Cobalt- and Rhodium-Catalyzed Synthesis of Indenamines, Indenols, and Isoquinolinium Salts: A Catalytic Cycle Involving M(III)/M(V) [M = Co, Rh] for [4 + 2] Annulation. J. Org. Chem. 2018, 83, 7814-7824. (IF = 4.75)

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12) Jayakumar, J., Cheng, C.-H. Recent Advances in the Synthesis of Quaternary Ammonium Salts Via Transition-Metal-Catalyzed C-H Bond Activation. 

J. Chin. Chem. Soc. 2018, 65, 11-23. (Special Issue Paper has been selected and awarded as the best article by Chinese chemical society, IF = 1.99, one of the top downloaded article)

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2017

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11) Upadhyay, N. S., Jayakumar, J., Cheng, C.-H. Facile one-pot synthesis of 2,3-dihydro-1H-indolizinium derivatives by rhodium(III)-catalyzed intramolecular oxidative annulation via C–H activation: application to ficuseptine synthesis. 

Chem. Comm. 2017, 53, 2491-94. (IF = 6.16)

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2016

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10) Upadhyay,+ N. S., Jayakumar,+ J., Cheng, C.-H. Rh-Catalyzed Regioselective Synthesis of Isoindolium Salts from 2-Arylpyridines and Alkenes in Aqueous Medium under Oxygen.

Adv. Synth. Catal. 2016, 358, 3381 – 3386. (+ These authors contributed equally, IF = 5.95)

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9) Jayakumar, J., Cheng, C.-H. Direct Synthesis of Protoberberine Alkaloids via Rh-Catalyzed C-H Bond Activation as the Key Step. 

Chem. Eur. J. 2016, 22, 1800–1804. (IF = 5.73)

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2015

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8) Luo, C.-Z., Jayakumar, J., Gandeepan, P., Wu, Y.-C., Cheng, C.-H. Rhodium(III)-Catalyzed Vinylic C−H Activation: A Direct Route toward Pyridinium Salts. 

Org. Lett. 2015, 17, 924−927. (IF = 6.73)

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2014

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7) Jayakumar, J., Parthasarathy, K., Chuang, S.-H., Lee, T.-H., Chuang, S.-C., Cheng, C.-H. One-Pot Synthesis of Highly Substituted Polyheteroaromatic Compounds by Rh(III)-Catalyzed Multiple C–H Activation and Annulation. 

Angew. Chem. Int. Ed. 2014, 53, 3518-3521. (Selected as Hot paper, Highlighted in Synfact, SCI  IF = 16.83)

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6) Senthilkumar, N., Gandeepan, P., Jayakumar, J., Cheng, C.-H. Rh(III)-Catalyzed Synthesis of 1-Substituted Isoquinolinium Salts via a C–H Bond Activation Reaction of Ketimines with Alkynes. 

Chem. Comm. 2014, 50, 3106. (IF = 6.73)

 

2013

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5) Lee, T.-H., Jayakumar, J., Cheng, C.-H., Chuang. S.-C. One pot Synthesis of Bioactive Benzopyranones through Palladium-Catalyzed C–H Activation and CO Insertion into 2-Arylphenols. 

Chem. Comm. 2013, 49, 1179. (IF = 6.73)

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4) Luo, C.-Z., Gandeepan, P., Jayakumar, J., Parthasarathy, K., Chang, Y.-W., Cheng, C.-H. Rh(III)-Catalyzed C-H Activation: A Versatile Route towards Various Polycyclic Pyridinium Salts. 

Chem. Eur. J. 2013, 19, 14181. (IF = 5.73)

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2012

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3) Parthasarathy, K., Senthilkumar, N., Jayakumar, J., Cheng, C.-H. Ru(II)-Catalyzed C-H Bond Activation for the Synthesis of Substituted Isoquinolinium Salts from Benzaldehydes, Amines, and Alkynes. 

Org. Lett. 2012, 14, 3481. (IF = 6.13)

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2) Jayakumar. J., Parthasarathy, K., Cheng, C-H. One-Pot Synthesis of Isoquinolinium Salts by Rhodium Catalyzed C-H Bond Activation: Application to the Total Synthesis of Oxychelerythrine. 

Angew. Chem. Int. Ed. 2012, 51, 197-200. (Selected Publication in ANIE author Profile of Prof. Chien-Hong, Cheng, highly cited article (220+), SCI, IF = 16.73)

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2010

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1) Rajaganesh, R., Jayakumar, J., Sivaraj, C., Raaman, N., Das, T. M. Synthesis and antioxidant activity of a novel class of 4,6-O-protected O-glycosides and their utility in disaccharide synthesis. 

Carbohydr Res, 2010, 345, 1649-57. (SCI, IF = 2.53)

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