After graduating from Science College, Calcutta in 1993, Professor Ghosh obtained his Ph.D. in Inorganic Chemistry in 1998 at Indian Institute of Technology, Bombay for research on Fischer Carbene complexes of group 6 transition metals and chalcogen-stabilized diiron clusters. He then spent five years as a post-doctoral researcher at University of Notre Dame, where he developed a new synthetic route to hypo-electronic metallaborane clusters.

Department of Chemistry,

Indian Institute of Technology Madras, Chennai – 600036, India.

Email: sghosh@iitm.ac.in

Phone: 044 (+91) 2257 4230; Fax: (044) 2257 4202

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“Recent News”

Boron Takes the Center Stage – A True Carbon-Free Analogue of Ferrocene

Congratulations to Stutee, Suvam, and the entire team on your recently accepted Science paper! This is an incredible achievement, we are all so proud of you!

There are ideas that visit you once and quietly leave. Then there are ideas that stay through failed reactions, no boron peak, no crystals, and long sleepless nights in the lab. For me, the idea of this molecule was the latter.
People say, “carbon is life,” but boron is my life. I have pursued boron chemistry since the start of my independent career, inspired by my mentor, Tom Fehlner at University of Notre Dame. I dedicate this work to him for teaching me to love boron chemistry.

In our pursuit of this molecule, we explored an extensive array of precursors, yet success remained elusive. What ultimately made the breakthrough possible was the untiring dedication and collective effort of my former group members. The recent contributions from Sourav–Subhash (Ti), Urminder (Fe), Asif–Urvashi (Ru), Sourav–Faneesha (Os), and Suvam (Rh) were instrumental in shaping our direction and refining our strategy. A particularly pivotal role was played by Sampad and Ketaki in their work on Os–B₄ and Os–B₅ rings (S. Shyamal, D. Chatterjee, K. Kar and S. Ghosh, Inorg. Chem., 2024, 63, 21838), which ultimately guided us toward the identification of a new and effective precursor, [Os(COD)Br₂].

We would also like to thank Prof. E. D. Jemmis of IISc Bangalore for his excellent theoretical insights, which greatly enhanced our understanding of the molecule’s structure and bonding.
We would also like to thank IIT Madras and the Department of Chemistry, IIT Madras, for the excellent facilities and support.

The full details of this work will be published online shortly.