65."Nonlinear Pathway for Remote Metal–Metal Communication in Heterobimetallic Complexes Enabled by Mixed NHC Ligands: Influence of Metal Coordination Modes" Chandra Shekhar Tiwari, Rupesh, Rajorshi Das*, Arnab Rit*, Inorg. Chem. 2025, DOI: 10.1021/acs.inorgchem.5c03237 .

64."Redefining the Coordination Mode of 1,2,4-Triazolylidene: Bridging the Gap Between Molecular Organometallic Chemistry and Extended Porous Architectures" Shashi Kumar, Priyadarshini V. and Arnab Rit*, Angew. Chem. Int. Ed. 2025, e202514207.

Angew Chem Int Ed - 2025 - Borstelmann - Outside Front Cover Helically Chiral Mixed‐Valen

63."Efficient Synthetic Approach to m-Terphenyl Derivatives via Arylation of Azolium Salts" Subarna Kar, Arya Ramachandran and Arnab Rit*, Chem. Commun. 2025, DOI - 10.1039/D5CC05201G

62."Efficient Nonlinear Communication between Two Distally Located Metal Centers in NHC-Supported Homobimetallic Complexes" Chandra Shekhar Tiwari, Aditya Dey, Rajorshi Das*, Arnab Rit*, Inorg. Chem. 2025, DOI: 10.1021/acs.inorgchem.5c01987.

61."Adaptive Defluoroamination of Aryl Fluorides: Harnessing the Catalytic Potential of a Unique Zinc Amide Compound" Sangita Sahoo and Arnab Rit*, Angew. Chem. Int. Ed. 2025, DOI: 10.1002/anie.202504156. (HOT paper!)

60. "Stimuli-Responsive Equilibrium in N-Heterocyclic Carbene-Supported Transition Metal Complexes: Selective Isolation of Multinuclear Species" Shashi Kumar and Arnab Rit*, Angew. Chem. Int. Ed. 2025, e202505558.

Angew Chem Int Ed - 2025 - Montes‐Tolentino - Cover Picture Control of Interlocking Mode

59. "Alkene-promoted NHC ligand substitution in orthometalated Ru–NHC complexes via σ-bond metathesis: a mechanistic insight" Arya Ramachandran, Somnath Bauri and Arnab Rit*, Chem. Commun., doi.org/10.1039/D4CC05886K

58. "Access to Functionalized Azolium Salts via Regiospecific Alkylation with Unactivated Alkenes: Scope and Mechanistic Insight" Arya Ramachandran, Somnath Bauri and Arnab Rit*, ChemCatChem 2025, e202402028. Editorial invitation article.

ChemCatChem - 2025 - Franco - Front Cover Heterogeneous Asymmetric Hydrogenation of C C a

57. "Cobalt–NHC promoted selective functionalization of alkynes via auxiliary-ligand modulation" Sangita Sahoo, Vipin K. Pandey, Jogendrananda Barik and Arnab Rit*, Catal. Sci. Technol., 2025, 15, 734.

56. "Study on the effect of auxiliary ligands in CoIII-NHC Complexes towards alkylation of amines using alcohols" Misba Siddique, Biswaranjan Boity, and Arnab Rit*, J. Organ. Chem. 2024, 1027, 123479. Published as part of the special issue on “International Conference on Organometallic Chemistry (ICOMC) 2024”

55. "Cooperativity between Metal Centers in Homobimetallic PdII-NHC Complexes: Catalytic Potential Towards Hydrodefluorination" Shashi Kumar, Dushyant Singh and Arnab Rit *, Chem. Commun., 2024, DOI: 10.1039/d4cc02185a

54. "Cobalt(III) Complexes of Pyridine Functionalized Chelating NHC Ligands: Effective Phosphine-Free Catalysts for the
Olefination of Alcohols Using Sulphones" Misba Siddique, Mehali Das, and Arnab Rit*, Organometallics 2024, 43, 1482. Published as part of Organometallics virtual special issue “Celebrating the 25th Anniversary of the Chemical Research Society of India”.

53. "Synthesis of Quinazolinone Scaffolds via Zinc(II) Stabilized Amidyl Radical Promoted Deaminative Approach" Subarna Manna, Sangita Sahoo, and Arnab Rit*, Chem. Commun., 2024, DOI: 10.1039/D4CC01554A. Top 25% downloaded ChemComm articles in August.

52. "Unravelling a Bench Stable Zinc-amide Compound as a Highly Active Multitasking Catalyst for the Radical Mediated Selective Alk(en)ylation of Unactivated Carbocycles Under Mild Conditions" Sangita Sahoo, Subarna Manna, and Arnab Rit*, Chem. Sci., 2024, 15, 5238-5247 . Selected for the "2024 most popular catalysis articles" collection.

51. "Amine Functionalized Bifunctional CoIII-NHC Complexes: Highly Effective Phosphine-Free Catalysts for the α‑Alkylation of Nitriles" Biswaranjan Boity, Misba Siddique, and Arnab Rit*, Chem. Commun., 2024, DOI- 10.1039/D3CC05454C. This article is selected for featuring in the "Inside Front Cover"

50. "(Benz)imidazo[1,2-a]quinolinium Salts: Access via Unprecedented Regiospecific non-AAIPEX Strategy and Study of Their Tunable Properties" Somnath Bauri, Arya Ramachandran, and Arnab Rit*, Chem. Eur. J. 2024, e202303744. This article is selected for the collection "Hot Topic: C-C Coupling"

49. "Control over Borrowing Hydrogen and Acceptorless Dehydrogenative Coupling Process for the Co(III)-NHC Catalysed Chemoselective Alkylation and Cyclisation of 1,2-Phenylenediamine with Alcohols" Misba Siddique, Biswaranjan Boity, and Arnab Rit*, Catal. Sci. Technol. 2023, DOI: 10.1039/D3CY01235B.

48. "Heteroditopic NHC Ligand Supported Manganese(I)-Complexes: Synthesis, Characterization, and Activity as Non-bifunctional Phosphine-Free Catalyst for the α‑Alkylation of Nitriles" S. N. R. Donthireddy, Arnab Rit*, Chem. Eur. J. 2023, e202302504. (invited article for the special collection "International Conference on Organometallics and Catalysis (ICOC - 2023)")

47. "Heterobimetallic Complexes Bridged by an Unsymmetrical Bis(NHC) Ligand: Study of Enhanced Catalytic Activity in Tandem Transformations and Understanding of Cooperativity between the Metal Centers" Shashi Kumar, Deeptesh K. Patra, Arnab Rit*, Chem. Eur. J. 2023, e202302180. (This work has been highlighted as the cover feature)

46. "‘Click’-Derived 1,2,3-Triazolium Salts Featuring a 4-Halo-phenyl Group: Precursors for Heterobimetallic Complexes" Chandra Shekhar Tiwari, Praseetha Mathoor Illam, Arnab Rit*, Chem. Asian J. 2023, DOI: 10.1002/asia.202300484 (invited article for the special collection "Indo-German Workshop (IGW)")

45. "Direct Access to meta-Alkylated N-Arylazolium Salts via Ruthenium Catalyzed Electronically Controlled Site Selective Functionalization: Scope and Mechanistic Aspect" Somnath Bauri, Shashi Kumar, and Arnab Rit*, Adv. Synth. Catal. 2023, DOI: 10.1002/adsc.202300392.

44. "N-Heterocyclic carbene supported zinc catalysed N-formylation of diverse N-H functionalities with carbon dioxide under ambient conditions" Sangita Sahoo, Subarna Manna, and Arnab Rit*, Catal. Sci. Technol. 2023, DOI: 10.1039/D3CY00401E)

43."Heteroditopic Chelating NHC Ligand-Supported CoIII Complexes: Catalysts for the Reductive Functionalization of Carbon Dioxide under Ambient Conditions" Misba Siddique, Biswaranjan Boity, and Arnab Rit*, Organometallics 2023, doi.org/10.1021/acs.organomet.2c00670. I nvited article for the special issue "Early Transition Metals in Organometallic Chemistry".

42. "Base-catalyzed Effective C2-Amidation of Azolium Salts Using Isocyanates under Mild Conditions" Somnath Bauri, Arya Ramachandran, and Arnab Rit*, Chem. Asian J. 2023, doi.org/10.1002/asia.202201301)

41. "N-Heterocyclic Carbene-Supported Nickel-Catalyzed Selective (Un)Symmetrical N-Alkylation of Aromatic Diamines with Alcohols" S. N. R. Donthireddy, Misba Siddique, and Arnab Rit*, J. Org. Chem. 2023, 88, 1135–1146)

40. "Towards New Coordination Modes of 1,2,3-Triazolylidene: Controlled by the Nature of 1st Metalation in a Heteroditopic Bis-NHC Ligand" Praseetha Mathoor Illam, Chandra Shekhar Tiwari, and Arnab Rit*, Chem. Sci. 2022, doi.org/10.1039/D2SC05024B

39. "Silver-Catalyzed One-Pot Three-Component Synthesis of α-Aminonitriles and Biologically Relevant α-Amino-phosphonates" Vipin K. Pandey, Chandra Shekhar Tiwari, and Arnab Rit*, Chem. Asian J. 2022, 17, e202200703

38. "Self-Assembly of a Bis-NHC Ligand and Coinage Metal Ions: Unprecedented Metal Driven Chemistry between the Tri- and Tetranuclear Species" Rajeev C. Nishad, Shashi Kumar, and Arnab Rit*, Angew. Chem. Int. Ed. 2022, 61, e202206788

37. "A heteroditopic NHC and phosphine ligand supported ruthenium(II)-complex: an effective catalyst for the N-alkylation of amides using alcohols" S. N. R. Donthireddy, Vivek K. Singh, and Arnab Rit*, Catal. Sci. Technol. 2022, DOI: 10.1039/d2cy00544a)

36. "Simple silver(I)-salt catalyzed selective hydroboration of isocyanates, pyridines, and quinolines" Vipin K. Pandey, Sangita Sahoo, and Arnab Rit*, Chem. Commun. 2022, 58, 5514-5517)

35. "RuII-Complexes of heteroditopic chelating NHC ligands: effective catalysts for the β-alkylation of secondary alcohols and the synthesis of 2-alkylaminoquinoline derivatives following the dehydrogenative protocol, Vivek Kumar Singh, S. N. R. Donthireddy, Vipin K. Pandey and Arnab Rit*, Org. Biomol. Chem. 2022, 20, 1945-1951.

Org%20%26%20biomolecular%20chemistry_pag

34. "Electronically tuneable orthometalated RuII–NHC complexes as efficient catalysts for C–C and C–N bond formations via borrowing hydrogen strategy, Praseetha Mathoor Illam and Arnab Rit*, Catal. Sci. Technol. 2022, 12, 67-74. (This work has been highlighted in the journal cover page)

33. "Recent Advances in the Syntheses and Catalytic Applications of Homonuclear Ru-, Rh-, and Ir-Complexes of CNHC^C Cyclometalated Ligands. Chandra Shekhar Tiwari, Praseetha Mathoor Illam, S. N. R. Donthireddy, Priya, and Arnab Rit* Chem.Eur.J. 2021, 27, 16581-16600.

Chemistry%20a%20european%20journal_edite

32. "Modulating the electronics of orthometalated RuII-NHC complexes via substitution patterns or NHC donors: Studies towards the impacts in catalysis. Praseetha Mathoor Illam, Vivek Kumar Singh, Priya, and Arnab Rit* J. Organomet. Chem. 2021, 951, 122008 (invited article for the special issue "Frontiers in Organometallic Chemistry").

31."[(PPh3)2NiCl2]-Catalyzed C–N Bond Formation Reaction via Borrowing Hydrogen Strategy: Access to Diverse Secondary Amines and Quinolines" S. N. R. Donthireddy, Vipin K. Pandey, and Arnab Rit* J. Org. Chem. 2021, 86, 6994–7001.

30. "Hetero- and Homobimetallic Complexes Bridged by a Bis(NHC) Ligand: Synthesis via Selective Sequential Metalation and Catalytic Applications in Tandem Organic Transformations" Rajeev C. Nishad, Shashi Kumar, and Arnab Rit*, Organometallics 2021, 40, 915-926.

29. "Silver-Catalyzed Hydroboration of C–X (X = C, O, N) Multiple Bonds" Vipin K. Pandey, Chandra Shekhar Tiwari, and Arnab Rit*, Org. Lett. 2021, 23, 1681-1686

28. "Atom‐Economic Alk(en)ylations of Esters, Amides, and Methyl Heteroarenes Utilizing Alcohols Following Dehydrogenative Strategies" S. N. R. Donthireddy, Chandra Shekhar Tiwari, Shashi Kumar, Dr. Arnab Rit*, Asian J. Org. Chem. 2021, 10, 464-484 ("Early Career Special Collection")

27. "Self-Assembly of Benzimidazole Derived Tris-NHC Ligands and AgI-ions to Hexanuclear Organometallic Cages and Their Unusual Transmetalation Chemistry" Rajeev C. Nishad, Arnab Rit*, Chem. Eur. J., 2021, 27, 594-599.

26. "Naphthyl-Derived Orthometalated RuII-NHC Complexes: Effect of the NHC Donors and/or Substitution Pattern on Their Synthesis and Catalytic Activity" Somnath Bauri, Anirban Mallik and Arnab Rit*, Organometallics, 2020, 39, 3362-3374.

25. “Transition metal complexes of a bis(carbene) ligand featuring 1,2,4-triazolin-5-ylidene donors: structural diversity and catalytic applications” Vivek Kumar Singh, S. N. R. Donthireddy, Praseetha Mathoor Illam, and Arnab Rit,* Dalton Trans. 2020, 49, 11958-11970.

24.“Catalyst- and solvent-free efficient access to N-alkylated amines via reductive amination using HBpin” Vipin K. Pandey, Somnath Bauri, and Arnab Rit,* Org. Biomol. Chem. 2020, 18, 3853-3857.

23. “Activation of protic, hydridic and apolar E-H bonds by a boryl-substituted Ge(II) cation” R. J. Morgan, Arnab Rit, C. P. Sindlinger, R. Tirfoin, J. Campos, J. Hicks, K. E. Chirstensen, H, Niu, and S. Aldridge, Chem. Eur. J. 2020, 26, 306-315.

22. “Ruthenium(II) complexes of heteroditopic N-heterocyclic carbene ligands: efficient catalysts for C-N Bond Formations via hydrogen borrowing strategy under solvent-free conditions” S. N. R. Donthireddy, Praseetha M. Illam, and Arnab Rit,* Inorg. Chem. 2020, 59, 1835-1847.

21. “Catalyst-free and solvent-free facile hydroboration of imines” Vipin K. Pandey, S. N. R. Donthireddy, and Arnab Rit,* Chem. Asian J. 2019, 14, 3255-3258.

20. “Heteroditopic Ru(II)- and Ir(III)-NHC complexes with pendant 1,2,3-triazole/triazolylidene groups: stereoelectronic impact on transfer hydrogenation of unsaturated compounds” Praseetha M. Illam, S. N. R. Donthireddy, Sayantan Chakrabartty, and Arnab Rit,*Organometallics 2019, 38, 2610-2623.

19. “AgSbF6-Catalyzed anti-Markovnikov hydroboration of terminal alkynes” Ramesh Mamidala, Vipin K. Pandey, and Arnab Rit,* Chem. Commun. 2019, 55, 989-992.

18. “Zinc dihydride and mixed halo hydrides supported by an N-heterocyclic carbene” Arnab Rit, Ann-Kristin Wiegand, Debabrata Mukherjee, Thomas P. Spaniol, and Jun Okuda, Eur. J. Inorg. Chem. 2018, 1114-1119.

17. “Effect of ancillary ligand in cyclometalated Ru(II)-NHC-catalyzed transfer hydrogenation of unsaturated compounds” Somnath Bauri, S. N. R. Donthireddy, Praseetha M. Illam, and Arnab Rit,* Inorg. Chem. 2018, 57, 14582-14593.

Before joining IITM

16. “Activation of Protic, Hydridic, and Apolar E-H Bonds by a Boryl-Substituted GeII-Cation” R. Mangan, Arnab Rit, C. P. Sindlinger, R. Tirfoin, Jesús Campos, J. Hicks, H. Niu, and Simon Aldridge,* Chem. Eur. J 2020, 26, 306-315. (This paper was selcted as a "Hot Paper")

15. “A Stable heavier group 14 analogue of vinylidene” Arnab Rit, Jesús Campos, Haoyu Niu, and Simon Aldridge*, Nat. Chem. 2016, 8, 1022-1026. (This work was highlighted in Nat. Chem. 2016, 8, 993-995)

14. “A Systematic Study of Structure and E-H Bond Activation Chemistry by Sterically Encumbered Germylenes Complexes” M. Usher, A. V. Protchenko, Arnab Rit, Jesús Campos, E. L. Kolychev, and Simon Aldridge,* Chem. Eur. J 2016, 22, 11685-11698.

13. “Catalytic B-N dehydrogenation using frustrated lewis pairs: evidence for a chain-growth coupling mechanism” Zhenbo Mo, Arnab Rit, Jesús Campos, E. L. Kolychev, and Simon Aldridge,* J. Am. Chem. Soc. 2016, 138, 3306-3309.

12. “Molecular zinc hydrides” Ann-Kristin Wiegand, Arnab Rit, and Jun Okuda,* Coord. Chem. Rev. 2016, 314, 71-82.

11. “Exploiting electrostatics to generate unsaturation: oxidative Ge=E bond formation using a non π-donor stabilized [R(L)Ge:]+ cation” Arnab Rit*, Rémi Tirfoin, and Simon Aldridge,* Angew. Chem. Int. Ed. 2016, 55, 378-382.

10. “Facile reversibility by design: tuning small molecule capture and activation by single component frustrated lewis pairs” Zhenbo Mo, Eugene L. Kolychev, Arnab Rit, Jesús Campos, Haoyu Niu, and Simon Aldridge,* J. Am. Chem. Soc. 2015, 137, 12227-12230.

9. “A cationic zinc hydride cluster stabilized by an N-heterocyclic carbene: synthesis, reactivity and hydrosilylation catalysis” Arnab Rit, A. Zanardi, T. P. Spaniol, L. Maron, and Jun Okuda,* Angew. Chem. Int. Ed. 2014, 53, 13273-13277.

8. “Dinuclear zinc hydride supported by an anionic bis(N-heterocyclic carbene) ligand” Arnab Rit, Thomas P. Spaniol, and Jun Okuda,* Chem. Asian J. 2014, 9, 612-619.

7. “Mixed alkyl hydrido complexes of zinc: synthesis, structure, and reactivity” Arnab Rit, Thomas P. Spaniol, Laurent Maron, and Jun Okuda,* Organometallics 2014, 33, 2039-3047.

6. “Two Different Metal-Dependent Coordination Modes of a Dicarbene Ligand” Ramananda Maity, Arnab Rit, Christian Schulte to Brinke, Jutta Kosters, and F. Ekkehardt Hahn,* Organometallics 2013, 32, 6174-6177.

5. “Molecular zinc dihydride stabilized by N-heterocyclic carbenes’’ Arnab Rit, Thomas P. Spaniol, Laurent Maron, and Jun Okuda,* Angew. Chem. Int. Ed. 2013, 52, 4664-4667. (This paper was selected as "Hot Paper".

4. "Metal Centre Dependent Coordination Modes of a Tricarbene Ligand" Ramananda Maity, Arnab Rit, Christian Schulte to Brinke, Constantin G. Daniliuc, and F. Ekkehardt Hahn,* Chem Commun. 2013, 49, 1011-1013.

3. “Polynuclear architectures with di- and tricarbene ligands’’ Arnab Rit, Tania Pape, and F. Ekkehardt Hahn,* Organometallics 2011, 30, 6393-6401. (This paper was featured as cover article of the 23rd issue of 2011)

2. “Supramolecular structures from polycarbene ligands and transition metal ions’’ Arnab Rit, Tania Pape, Alexander Hepp, and F. Ekkehardt Hahn,* Organometallics 2011, 30, 334-347.

1. “Self-assembly of molecular cylinders from polycarbene ligands and Ag(I) or Au(I)” Arnab Rit, Tania Pape, and F. Ekkehardt Hahn,* J. Am. Chem. Soc. 2010, 132, 4572-4573.