Dr Gokulnath Sabapathi
Associate Professor (Chemistry)
  +91 (0)471 - 2778052

37.  A. Edwin, G. Krishnan, P. A. Anilkumar and S. Gokulnath*, Template Assisted Formation of 32 and 34π Octaphyrins Embedded with Dithienopyrrole Cores: A New Scaffold to Unravel Proton Coupled Redox Switching and (Anti)Aromaticity" Chem. Eur. J. https://doi.org/10.1002/chem.202303326  Accepted Article.

36. A. Kalaiselvan, A. Naniyil, Ruth M. Ipe, I. Sai Vamsi Krishna, V. S. Reddy, Alex P. Andrews and S. Gokulnath*, "Stable Inner 2H Tautomer of N-Confused-like Porphyrin Embedded with a Carbazole Subunit: Synthesis, Metal Coordination, and Magnetic and Anion Sensing Studies" J. Org. Chem. 2023, 88, 14377-14387. https://pubs.acs.org/doi/10.1021/acs.joc.3c01255

35. Aswini Spergen, A. Kalaiselvan, S. Gokulnath*, "Near-IR Electrochromic Dihydroindolo(2,3a)carbazole-Based Macrocycles and Their [b]-Annulated BODIPY Complexes" Adv. Opt. Mater2023, 112300778, https://onlinelibrary.wiley.com/doi/10.1002/adom.202300778. .

34. Anjana P. Nambiar, P. Nag, Ruth M. Ipe, V. S. Reddy, S. Gokulnath*, "Conformationally Locked Cyclo[2]Dipyrrins Linked with Anthracene Subunits: Synthesis and Chiroptical Properties"  Angew. Chem. Int. Ed. 2023https://doi.org/10.1002/anie.202306566. Early View.

33. Ruth M. Ipe, Anjana P. Nambiar, P. Nag, V. S. Reddy, S. Gokulnath*, Unprecedented formation of bis-calix[5]phyrins centrally linked with pyrene subunits" J. Porphyrins and Phthalocyanines, 2023, 27, 1203-1211. https://doi.org/10.1142/S1088424623500736 Dedicated to Prof. Jonathan L. Sessler on the occasion of his 65th Birthday

32. Ruth M. Ipe, A. Parammal, P. Nag, S. Mori, V. S. Reddy, S. Gokulnath*, "Synthetic Model for FRET Constructed from Covalently Linked Porphyrin Dimers through a Pyrene Bridge" J. Org. Chem. 2023, 88, 5780-5790. https://pubs.acs.org/doi/pdf/10.1021/acs.joc.3c00229

31. A. Edwin, T. Sulfikarali, G. Kuppadakkath, S. Gokulnath*, "Unprecedented formation of azulicorroles from the scrambling of azulitripyrrane" J. Porphyrins and Phthalocyanines, 2023, 27, 190-200. https://doi.org/10.1142/S1088424622500808 Dedicated to Prof. Tomás Torres on the occasion of his 70th birthday

30. Ruth M. Ipe, P. Nag, S. Mori, Anjana P. Nambiar, V. S. Reddy, S. Gokulnath*, "Synthesis, Structure, and Optical Properties of a Bis-Macrocycle Derived from a Highly Emissive 1,3,6,8-Tetra(1H‑pyrrol-2-yl)pyrene". J. Org. Chem., 2022, 87, 15022-15030. https://pubs.acs.org/doi/full/10.1021/acs.joc.2c01362

  29. J. Ajay, T. Sulfikarali, G. M. Sandra, S. Gokulnath*, "Conformationally Distinct [26]Hetero-Rubyrins ( and their Bis-BODIPYs: Synthesis, Structure and Optical Properties". Org. Lett. 2022, 24, 1000-1004. https://doi.org/10.1021/acs.orglett.1c04043. Featured as front cover page.

28. T. Sulfikarali, G. Behera, J. Ajay, S. Mori, K. Akhil Chakravarthy, V. S. Reddy and S. Gokulnath*, "Disruption of Antiaromaticity in Structurally Related Expanded Porphyrin-Like Macrocycles with Benzene Linkers" Org. Lett. 2022, 24, 245-249, https://doi.org/10.1021/acs.orglett.1c03903.

27. A. Kalaiselvan, S. Dhamija, C. Aswathi, A. K. De* and S. Gokulnath*, "Planar Hexaphyrin-like Macrocycles Turning to bis-BODIPYs with Box-shaped Structures Exhibiting Excitonic Coupling” Chem. Commun. 2021,  57, 11485-11488, https://pubs.rsc.org/en/Content/ArticleLanding/2021/cc/d1cc04403f                                               

26. J. Ajay, G. Maria Sandra, M. Ishida, T. Sulfikarali and S.  Gokulnath*, “Lewis Acid-Catalyzed Formation of Triply S-Confused Hexaphyrin ( and its Structure-Property Correlations” J. Porphyrins and Phthalocyanines, 2021, 25, 1143-1151. https://www.worldscientific.com/doi/abs/10.1142/S108842462150108X Dedicated to Prof. Hiroyuki Furuta and Latos Grazynski on the occasion of their 65th birthdays

25. A. Kalaiselvan, A. Spergen, I. Sai Vamsi Krishna, V. S. Reddy and S. Gokulnath* “Double intramolecular hydrogen transfer assisted dual emission in a carbazole-embedded porphyrin-like macrocycle” Chem. Commun. 2021, 57, 4420-4423.   https://pubs.rsc.org/en/content/articlepdf/2021/cc/d1cc00868d

24. J. Ajay, T. Sulfikarali, K. Akhil Chakravarthy, V. S. Reddy and S. Gokulnath*, “Hexathianonaphyrin( Synthesis, optical, redox and protonation induced antiaromaticity” J. Porphyrins and Phthalocyanines, 2021, 25, 484-492.  Dedicated to Prof. T. K. Chandrashekar on the occasion of his 65th birthday
10.1142/S1088424621500322. https://www.worldscientific.com/doi/abs/10.1142/S1088424621500322

23. P. Yadav, A. Awasthi S. Gokulnath and D. K. Tiwari* “DMSO as a Methine Source in TFA-Mediated One-Pot Tandem Regioselective Synthesis of 3-Substituted-1-Aryl-1H-Pyrazolo-[3,4-b]quinolines from Anilines and Pyrazolones” J. Org. Chem. 2021, 86, 2658-2666. https://pubs.acs.org/doi/pdf/10.1021/acs.joc.0c02696

22. T. Sulfikarali, J. Ajay, C. H. Suresh, P. V. Bijina and S. Gokulnath* “Synthesis, Structure and Optical Properties of Di-m-benzihexaphyrins ( and Di-m-benziheptaphyrins ( Blackening of m-Phenylene Linked Dicarbaporphyrinoids by Simple π-Expansion” J. Org. Chem. 2020, 85, 8021-8028. https://pubs.acs.org/doi/10.1021/acs.joc.0c00754 (Featured as ACS Editors’ Choice

21. A. Kalaiselvan, I. Sai Vamsi Krishna, A. P. Nambiar, A. Edwin, V. S. Reddy, and S. Gokulnath* “Carbazole-Based Porphyrins: Synthesis, Structure-Photophysical Property Correlations and Mercury Ion Sensing” Org. Lett. 2020, 22, 4495-4499. https://pubs.acs.org/doi/10.1021/acs.orglett.0c01500
20. Y. Wang, H. Kai, M. Ishida, S. Gokulnath, S. Mori, T. Murayama, A. Muranaka, M. Uchiyama, Y. Yasutake, S. Fukatsu, Y. Notsuka, Y. Yamaoka, M. Hanafusa, M. Yoshizawa, G. Kim, D. Kim and H. Furuta “Synthesis of a Black Dye with Absorption Capabilities Across the Visible-to-Near-Infrared Region: A MO-Mixing Approach via Heterometal Coordination of Expanded Porphyrinoid” J. Am. Chem.. Soc. 2020, 142, 6807-6813. https://pubs.acs.org/doi/abs/10.1021/jacs.0c01824                                                                     

19. J. Ajay, S. Shirisha, M. Ishida, K. Ito, S. Mori, H. Furuta* and S. Gokulnath* "Planar Antiaromatic Core-Modified 24π Hexaphyrin( and 32π Octaphyrin( Bearing Alternate Hybrid Diheterole Units", Chem. Eur. J. 2019, 21, 2859-2867. (Accepted as Hot Paper). https://onlinelibrary.wiley.com/doi/full/10.1002/chem.201805861

18. S. Borra, D. Chandrasekhar, S. Adhikary, S. Rasala, S. Gokulnath* and R. A. Maurya* ”Visible-Light Driven Photocascade Catalysis: Union of N,N-Dimethylanilines and ??Azidochalcones in Flow Microreactors” J. Org. Chem., 201782, 2249–2256. https://pubs.acs.org/doi/abs/10.1021/acs.joc.6b0293

17. B. Shivaprasad Achary, S. Gokulnath, S. Ghosh, M. Mrinalini, S. Prasanthkumar, L. Giribabu*, “Unprecedented Charge-Transfer Complex of Fused Diporphyrin as Near-Infrared Dye Induced High Aspect Ratio Nanorods” Chem. Asian J. 2016, 11, 3498-3502. 

16. M. Phanindrudu, D. K. Tiwari, V. K. Aravilli, K. C. Bharadwaj, S. Gokulnath, P. R. Likhar and D. K. Tiwari*, “Magnetically Recoverable Cu0/Fe3O4-Catalysed One-Pot Tandem Synthesis of Sulfur-Containing Triazoles from Alkynes and Azide: DMSO Acts as an Alkylating Agent” Eur. J. Org. Chem. 2016, 4629-4634. 

15. G. Sfyri, Ch. Vijay Kumar, S. Gokulnath, L. Giribabu*, K. S. Andrikopoulos, E. Stathatos and P. Lianos, “Subphthalocyanine as Hole Transporting Material for Perovskite Solar Cells” RSC Advances, 2015, 5, 69813. 

14. K. Sudhakar, S. Gokulnath, L. Giribabu*, G. N. Lim, T. Trâm, and F. D’Souza*, “Ultrafast photoinduced charge separation and rapid charge recombination in directly linked via ?-pyrrole position corrole-C60 and triphenylamine-corrole-C60 donor-acceptor conjugates” Chem. Asian J. 2015, 10, 2708. 

13. S. Gokulnath, B. Shivaprasad Achary, Ch. Kiran Kumar and R. Trivedi, B. Sridhar, and L. Giribabu*. “Synthesis, Structure and Photophysical Properties of Ferrocenyl or mixed Sandwich Cobaltocenyl Ester Linked meso-Tetratolylporphyrin Dyads” Photochem. and Photobiol. 2015, 91, 33-41. 

12. L. Giribabu*, K. Sudhakar, S. Gokulnath and K. Ravikumar. “Intramolecular Photoinduced Reactions in Corrole-Pyrene and Corrole-Fluorene Dyad Systems” J. Photochem. and Photobiol. A: Chem. 2014, 284, 18-26. 

11. S. Gokulnath, K. Nishimura, M. Toganoh, S. Mori, and H. Furuta*. “Palladium-Induced pyrrolic Rearrangement of a Singly N-Confused [26]Hexaphyrin to a Doubly N-Confused [26]Hexaphyrin” Angew. Chem. Int. Ed. 2013, 52, 6940-6943. https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.201302955

10. S. Gokulnath, M. Toganoh, K. Yamaguchi, S. Mori, H. Uno and H. Furuta.* “Confusion of Möbius aromaticity: Disruption of annulenic pathway in singly N-confused [28]hexaphyrin and its mono-Pd(II) complex” Dalton Trans., 2012, 41, 6283-6290. http://pubs.rsc.org/en/content/articlehtml/2012/dt/c2dt30306j 

09. M. Toganoh, S. Gokulnath, Y. Kawabe and H. Furuta*. “Synthesis and reactivity of meso-Aryl Doubly N-Confused Bilanes” Chem. Eur. J. 2012, 18, 4380-4391. http://onlinelibrary.wiley.com/doi/10.1002/chem.201103034/full 

08. S. Gokulnath, K. Yamaguchi, M. Toganoh, S. Mori, H. Uno and H. Furuta*. “Singly N-Confused [26]Hexaphyrin: A New Binucleating Porphyrinoid Ligand for Mixed-Metals in Different Oxidation States” Angew. Chem. Int. Ed. 2011, 50, 2302-2306. http://onlinelibrary.wiley.com/wol1/doi/10.1002/anie.201006784/full 

07. T. K. Chandrashekar*, V. Prabhuraja, S. Gokulnath, R. Sabarinathan and. A. Srinivasan.Fused Core-Modified meso-Aryl Expanded Porphyrins”Chem. Commun. 2010, 46, 5915-5917. http://pubs.rsc.org/En/content/articlelanding/2010/cc/c000387e#!divAbstract 

06. S. Gokulnath, V. Prabhuraja, C. H. Suresh and T. K. Chandrashekar*. “Modified 26 and 28??Hexaphyrins with Five meso-Links: Optical, Redox, and Structural Properties” Chem. Asian J. 2009, 4, 861-869. http://onlinelibrary.wiley.com/doi/10.1002/asia.200800397/abstract 

05. S. Gokulnath and T. K. Chandrashekar*.Expanded porphyrins as third order non-linear optical materials: Some Structure-Function Correlation” J. Chem. Sciences (Ind. Acad. Sci.), 2008, 120, 1-6. https://link.springer.com/article/10.1007/s12039-008-0016-1 

04. S. Gokulnath and T. K. Chandrashekar*.One Pot Synthesis of Core-Modified meso-Aryl Calix[5]phyrin and N-Fused[24] pentaphyrin” Org. Lett., 2008, 10, 637-640. http://pubs.acs.org/doi/abs/10.1021/ol7029728 

03. S. Gokulnath, V. Prabhuraja and T. K. Chandrashekar*.One Pot Synthesis of Oxidized and Reduced Heptaphyrins with Unusual TFA Binding” Org. Lett., 2007, 9, 3355-3357. http://pubs.acs.org/doi/abs/10.1021/ol0713180 

02. J. Sankar, H. Rath, V. Prabhuraja, S. Gokulnath, T. K. Chandrashekar*, C. S. Purohit and S. Verma. “Meso-Meso Linked Core-modified Corrole-Dimers: Synthesis, Characterization and Properties” Chem. Eur. J. 2007, 13, 105-114. http://onlinelibrary.wiley.com/doi/10.1002/chem.200600457/abstract 

01. S. Gokulnath, V. Prabhuraja, J. Sankar and T. K. Chandrashekar*.Smaragdyrin-Azobenzene Conjugates: Syntheses, Structure, Spectral and Electrochemical properties” Eur. J. Org. Chem., 2007, 191-200. http://onlinelibrary.wiley.com/doi/10.1002/ejoc.200600719/abstract