Publications

55. Microscopic growth of pyridinium oxime based amphipathic on graphite: Effect of relative position of substituents, Poonam Chauhan, Prithwidip Saha, Thiruvancheril G. Gopakumar, Prema G. Vasudev, Ramesh Ramapanicker, J. Surfactants Deterg, 2024, Just Accepted

54. Incorporation of phenylcarbonyl groups in the sidechain: A tool to induce ordered assembly of peptides on surfaces, Mrinal Kalita, Khushboo Yadav, Archana Archana, Thiruvancheril G. Gopakumar, Prema G. Vasudev, Ramesh Ramapanicker, J. Pep. Sci. 2024 Link..

53. Large Area Film of Highly Crystalline, Cleavable, and Transferable Semi-Conducting 2D-Imine Covalent Organic Framework on Dielectric Glass Substrate, Diksha Srivastava, Vipin Mishra, Showkat H. Mir, Jyotirban Dey, Jayant K. Singh, Manabendra Chandra, Thiruvancheril G. Gopakumar, ACS Appl. Mater. Interfaces 2024, 16, 30485–30495. Link..

52. Tuning the Switching Probability of Azobenzene Derivatives on Graphite Surface through Chemical Functions, Hariom Birla, Khushboo Yadav, Showkat H. Mir, Thomas Halbritter, Alexander Heckel, Jayant K. Singh, Thiruvancheril G. Gopakumar, J. Phys. Chem. C 2023, 127, 17039–17050. Link..

51. A Subtle Structural Change in Exciton-Forming Dye Drives Plasmon-Exciton Interaction Involving Gold Nanorods into the Strong Coupling Regime: Implications for Enhanced Optical Processes, Manish Kumar, Richa Arjariya, Jyotirban Dey, Thiruvancheril G. Gopakumar, Manabendra Chandra, ACS Appl. Nano Mater. 2023, 6, 13894–13901 Link..

50. Kinetic Versus Thermodynamic Polymorph Stabilization of a Tri-Carboxylic Derivative at the Solid-Liquid Interface, Richa Arjariya, Gagandeep Kaur, Shantanu Sen, Sandeep Verma, Markus Lackinger, Thiruvancheril G. Gopakumar, Nanoscale, 2023. Link..

49. Meta-Stable Initial Condition for Improving the Switching Probability in Azobenzene Derivatives on Surface, Khushboo Yadav, Hariom Birla, Showkat H. Mir, Thomas Halbritter, Alexander Heckel, Jayant K. Singh, Thiruvancheril G. Gopakumar, Appl. Surf. Sci., 2022, 612, 155747 Link..

48. Light-Induced Quantitative and Electrical-Field Induced Barrier-Less Switching of Spiropyran Derivative on Graphite Surface, Himani Malik, Thomas Halbritter, Alexander Heckel, Thiruvancheril G. Gopakumar, J. Phys. Chem. Lett. 2021, 12, 5463 Link..

47. Solvent and Temperature Dependent Assembly in Monolayer Film of Ferrocene‐Naphthyridine Hybrid on HOPG, Himani Malik, Prithwidip Saha, Kamaless Patra, Jitendra K. Bera, Thiruvancheril G. Gopakumar, Chem. Asian J. 2021, 16, 1430. Link..

46. Improving the extraction performance of polymer inclusion membranes by cross-linking their polymeric backbone, Bosirul Hoque, Maria Inês G. S. Almeida, Robert W. Cattrall, Thiruvancheril G. Gopakumar, Spas D. Kolev, React. Funct. Polym., 2021, 160, 104813. Link..

45. A cross-linked polymer inclusion membrane for enhanced gold recovery from electronic waste, Bosirul Hoque, Maria Inês G. S. Almeida, Robert W. Cattrall, Thiruvancheril G. Gopakumar, Spas D. Kolev, Waste Manage., 2021, 124, 54-62. Link..

44. Measuring the Intermolecular Interactions in Molecular Patterns on Surfaces Using Microscopy, Vipin Mishra, Prithwidip Saha, Thiruvancheril G. Gopakumar, J. Phys. Chem. C, 2021, 125, 602-609. Link..

43. Rationally Designed Semiconducting 2D Surface-Confined Metal–Organic Network, Vipin Mishra, Showkat H. Mir, Jayant K. Singh, Thiruvancheril G. Gopakumar, ACS Appl. Mater. Interfaces, 2020, 12, 51122–51132. Link..

42. A simple molecular design for tunable two-dimensional imine covalent organic frameworks for optoelectronic applications, Vivek K. Yadava, Showkat H. Mir, Vipin Mishra, Thiruvancheril G. Gopakumar, Jayant K. Singh, Phys. Chem. Chem. Phys., 2020, 22, 21360-21368. Link..

41. Revealing the Limits of Intermolecular Interactions: Molecular Rings of Ferrocene Derivatives on Graphite Surface, Prithwidip Saha, Vivek K. Yadav, Vinithra Gurunarayanan, Ramesh Ramapanicker, Jayant K. Singh, Thiruvancheril G. Gopakumar J. Phys. Chem. Lett. 2020, 11, 297-302. Link..

40. Solution Processed Large Area Ultra-Thin Films of Metal Co-Ordinated Electron Rich Adenine Based Ligand, Khushboo Yadav, Pratibha, Sandeep Verma, Thiruvancheril G. Gopakumar, J. Phys. Chem. C, 2019, 123, 20922–20927. Link..

39. Effect of cross-linking on the performance of polymer inclusion membranes (PIMs) for the extraction, transport and separation of Zn(II), Bosirul Hoque, Maria Inês G. S. Almeida, Robert W. Cattrall, Thiruvancheril G. Gopakumar, Spas D. Kolev, J. Membrane Sci., 2019, 589, 117256. Link..

38. Understanding the Adsorption Energetics of Growth Polymorphs of Ferrocene Derivatives: Microscopic Thermal Desorption Analysis, Prithwidip Saha, Vivek K. Yadav, Vinithra Gurunarayanan, Ramesh Ramapanicker, Jayant K. Singh, Thiruvancheril G. Gopakumar, J. Phys. Chem. C, 2019, 123, 18488-18494. Link..

37. Electronic Structure of a Semi‐conducting Imine‐Covalent Organic Framework, Vipin Mishra, Vivek K. Yadav, Jayant K. Singh, Thiruvancheril G. Gopakumar, Chem Asian J, 2019, 14, 4645-4650. Link..

36. Low Threshold Reversible Electron Induced and Selective Photo Induced Switching of Azobenzene Derivatives at Ambient Conditions, Khushboo Yadav, Sayantan Mahapatra, Thomas Halbritter, Alexander Heckel, Thiruvancheril G. Gopakumar, J. Phys. Chem. Lett., 2018, 9, 6326-6333. Link..

35. Comparing Interactions in Three-fold Symmetric Molecules at Solid-Air interface, Vipin Mishra, Thiruvancheril G. Gopakumar, Surf. Sci., 2018, 680, 11-17. Link..

34. Selection of Adlayer Patterns of 1,3-Dithia Derivatives of Ferrocene by the Nature of Solvent, Prithwidip Saha, Vinithra Gurunarayanan, Vladimir V. Korolkov, Prema G. Vasudev, Ramesh Ramapanicker, Peter H. Beton, Thiruvancheril G. Gopakumar, J. Phys. Chem. C, 2018, 122, 19067–19074. Link..

33. Controlling Self-Assembly of Switchable Azobenzene Derivatives on Highly Oriented Pyrolytic Graphite at Ambient Conditions, Khushboo Yadav, Thomas Halbritter, Alexander Heckel, Thiruvancheril G. Gopakumar, J. Phys. Chem. C, 2018, 122, 15330–15337. Link..

32. Exploring the Organic–Inorganic Interface With a Scanning Tunneling Microscope. Joerg Kröger, Nicolas Néel, Richard Berndt, Yongfeng Wang, Thiruvancheril G. Gopakumar, Encyclopedia of Interfacial Chemistry: Surface Science and Electrochemistry K. Wandelt (Ed.), 2018, 2, 81–98. Link..

31. Ester formation at the liquid-solid interface, Nguyen T. N. Ha, Thiruvancheril G. Gopakumar, Nguyen D. C. Yen, Carola Mende, Lars Smykalla, Maik Schlesinger, Roy Buschbeck, Tobias Rüffer, Heinrich Lang, Michael Mehring, Michael Hietschold, Beilstein J. Nanotechnology, 2017, 8, 2139–2150. Link..

30. Coordination Controlled One-Dimensional Molecular Chains in Hexapodal Adenine-Silver Ultrathin Films, R. K. Saravanan, Prithwidip Saha, V. Venkatesh, Thiruvancheril G. Gopakumar, S. Verma, Inorg. Chem. 2017, 56, 3976-3982. Link..

29. Surface cis Effect: Influence of an Axial Ligand on Molecular Self-Assembly, Thomas Knaak, Thiruvancheril G. Gopakumar, Bettina Schwager, Felix Tuczek, Roberto Robles, Nicolás Lorente, Richard Berndt, J. Am. Chem. Soc., 2016, 138, 7544-7550. Link..

28. Switching of an Azobenzene-Tripod Molecule on Ag(111), Katharina Scheil, Thiruvancheril G. Gopakumar, Julia Bahrenburg, Friedrich Temps, Reinhard J. Maurer, Karsten Reuter, Richard Berndt, J. Phys. Chem. Lett., 2016, 7, 2080-2084. Link..

27. Controlling Growth to One Dimension in Nanoislands of Ferrocene-Sugar Derivatives, Prithwidip Saha, Khushboo Yadav, Shibin Chacko, Anijamol T. Philip, Ramesh Ramapanicker, Thiruvancheril G. Gopakumar, J. Phys. Chem., 2016, 120, 9223-9228. Link..

26. Remotely triggered geometrical isomerization of a binuclear complex, Sujoy Karan, Thiruvancheril G. Gopakumar, Hanne Jacob, Sven Meyer, Felix Tuczek, Richard Berndt, J. Am. Chem. Soc., 2014, 136, 6163. Link..

25. Broken symmetry of an adsorbed molecule revealed by scanning tunneling spectroscopy, Thiruvancheril G. Gopakumar, Tugba Davran‐Candan, Julia Bahrenburg, Reinhard J. Maurer, Friedrich Temps, Karsten Reuter, Richard Berndt, Angew. Chem. Int. Ed. 2013, 52, 11007. Link..

24. A spin crossover complex on Au(111): Structural and electronic differences between mono- and multilayers, Thiruvancheril G. Gopakumar, Matthias Bernien, Holger Naggert, Francesca Matino, Christian F. Hermanns, Alexander Bannwarth, Svenja Mühlenberend, Alex Krüger, Dennis Krüger, Fabian Nickel, Waldemar Walter, Richard Berndt, Wolfgang Kuch, Felix Tuczek, Chem. Eur. J. 2013, 19, 15702. Link..

23. Surface Control of Alkyl Chain Conformations and 2D Chiral Amplification, Nadine Hauptmann, Katharina Scheil, Thiruvancheril G. Gopakumar, Franziska L. Otte, Christian Schütt, Rainer Herges, Richard Berndt, J. Am. Chem. Soc. 2013, 135, 8814. Link..

22. Electron-Induced Spin Crossover of Single Molecules in a Bilayer on Gold, Thiruvancheril G. Gopakumar, Francesca Matino, Holger Naggert, Alexander Bannwarth, Felix Tuczek, Richard Berndt, Angew. Chem. Int. Ed. 2012, 51, 6262. Link..

21. Transfer of Cl ligands between adsorbed Fe-Tetraphenylporphyrin molecules, Thiruvancheril G. Gopakumar, Hao Tang, Joseph Morillo, and Richard Berndt, J. Am. Chem. Soc. 2012, 134, 11844. Link..

20. Polymorphs of trimesic acid controlled by solvent polarity and concentration of solute at solid-liquid interface, Nguyen Thi Ngo Ha, Thiruvancheril G.Gopakumar, Michael Hietschold, Surf. Sci. 2012, 607, 68. Link..

19. Electronic Ground-State and Orbital Ordering of Iron Phthalocyanine on H/Si(111) Unraveled by Spatially Resolved Tunneling Spectroscopy, Markus Gruyters, T. Pingel, Thiruvancheril G. Gopakumar, Nicolas Néel, Ch. Schütt, F. Köhler, Rainer Herges, Richard Berndt, J. Phys. Chem. C, 2012, 116, 20882. Link..

18. DFT Study of Vibronic Properties of d8 (Ni-, Pd-, and Pt-) Phthalocyanines, D. Pouladsaz, M. Schreiber, T. G. Gopakumar, J. Chem. Phys. 2012, 138, 014306. Link..

17. Coverage Driven Electronic Decoupling of Fe-Phthalocyanine from a Ag(111) Substrate, T. G. Gopakumar, T. Brumme, J. Kroger, C. Toher, G. Cuniberti, R. Berndt, J. Phys. Chem. C, 2011, 115, 12173. Link..

16. Polymorphism Driven by Concentration at the Liquid-Solid Interface, T. N. Ha, T. G. Gopakumar, M. Hietschold, J. Phys. Chem. C, 2011, 115, 21743. Link..

15. Exploring the F16CoPc/Ag(110) Interface Using Scanning Tunneling Microscopy and Spectroscopy. 2. Adsorption-Induced Charge Transfer Effect, M. Toader, T. G. Gopakumar, P. Shukrynau, M. Hietschold, J. Phys. Chem. C, 2010, 114, 21548. Link..

14. Exploring the F16CoPc/Ag(110) Interface Using Scanning Tunneling Microscopy and Spectroscopy. Part 1: Template-Guided Adlayer Structure Formation, M. Toader, T. G. Gopakumar, M. Abdel-Hafiez, M, Hietschold, J. Phys. Chem. C, 2010, 114, 3537. Link..

13. Influence of Solvophobic Effects on Self-Assembly of Trimesic Acid at the Liquid−Solid Interface, Nguyen T. N. Ha, T. G. Gopakumar, R. Gutzler, M. Lackinger, H. Tang, M. Hietschold, J. Phys. Chem. C, 2010, 114, 3531. Link..

12. Coverage Driven Formation of Homochiral Domains of an Achiral Molecule on Au(111), T. G. Gopakumar, F. Matino, B. Schwager, A. Bannwarth, F. Tuczek, J. Kroger, R. Berndt, J. Phys. Chem. C, 2010, 114, 18247. Link..

11. Spatial modulation of d states in a nanoscale Co island, T. G. Gopakumar, N. Néel, J. Kröger, R. Berndt, Chem. Phys. Lett. 2009, 484, 59. Link..

10. Porous Network Structure of Octacyano-Metal-Free Phthalocyanine on the Basal Plane of Highly Oriented Pyrolytic Graphite, T. G. Gopakumar, H. Tang, W. R. Thiel, M. Hietschold, J. Phys. Chem. C 2008, 112, 7698. Link..

09. HOMO-LUMO Gap Shrinking Reveals Tip-Induced Polarization of Molecules in Ultrathin Layers: Tip-Sample Distance-Dependent Scanning Tunneling Spectroscopy on d8 (Ni, Pd, and Pt) Phthalocyanines, T. G. Gopakumar, J. Meiss, D. Pouladsaz, M. Hietschold, J. Phys. Chem. C 2008, 112, 2529. Link..

08. Scanning Tunnelling Microscopy on Ultra Thin Organic Layers of Phthalocyanine and Naphthalocyanines on HOPG (0001), T. G. Gopakumar, M. Lackinger, M. Hietschold, Jpn. J. Appl. Phys. 2006, 45(3B). Link..

07. STM and STS studies of planar and non-planar Naphthalocyanines on Graphite (0001), Part-I: Effect of non-planarity on the adlayer structure and voltage-induced flipping of non-planar tin-naphthalocyanine, T. G. Gopakumar, F. Müller, M. Hietschold, J. Phys. Chem. B. 2006, 110, 6051. Link..

06. STM and STS studies of planar and non-planar Naphthalocyanines on Graphite (0001), Part-II: Tip-sample distance dependent I-V spectroscopy, T. G. Gopakumar, F. Müller, M. Hietschold, J. Phys. Chem. B. 2006, 110, 6060. Link..

05. Molecular structures on crystalline matalic surfaces-From STM images to molecular electronics, M. Hietschold, M. Lackinger, S. Griessl, W. M. Heckl, T. G. Gopakumar, G. W. Flynn, Microelectron. Eng. 2005, 82, 207. Link..

04. Tunneling Voltage Polarity Dependent Submolecular Contrast of Naphthalocyanine on Graphite. A STM Study of Close-Packed Monolayers under Ultrahigh-Vacuum Conditions, M. Lackinger, T. Müller, T. G. Gopakumar, F. Müller, M. Hietschold and G. W. Flynn: J. Phys. Chem. B. 2004, 108, 2279. Link..

03. Adsorption of Palladium Phthalocyanine on Graphite: STM and LEED Study, T. G. Gopakumar, M. Lackinger, M. Hackert, F. Müller, M. Hietschold, J. Phys. Chem. B. 2004, 108, 7839. Link..

02. Effect of chain length on the tunneling conductance of gold quantum dots at room temperature, N. K. Chaki, T. G. Gopakumar, T. Maddanimath, M. Aslam, K. Vijayamohanan, J. Appl. Phys. 2003, 94, 3663. Link..

01. Effect of Chain Length and the Nature of the Monolayer on the Electrical Behavior of Hydrophobically Organized Gold Clusters, N. K. Chaki, M. Aslam, T. G. Gopakumar, J. Sharma, R. Pasricha, I. S. Mulla, K. Vijayamohanan, J. Phys. Chem. B. 2003, 107, 13567. Link..

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