Latest inventions in science and technology Creation of Carbon-Free Ferrocene Analogue by Indian Scientists Context: Researchers from Indian Institute of Technology Madras and Indian Institute of Science have created the first stable carbon-free analogue of ferrocene. About Ferrocene Ferrocene is a famous organometallic compound discovered over 70 years ago. Its discovery led to the development of organometallic chemistry with applications in: Materials science, Catalysis, Medicine It contains: One iron atom Sandwiched between two flat carbon rings Major Breakthrough Scientists successfully replaced carbon rings with boron rings. The new compound contains: Boron-based rings A central osmium atom This makes it a fully inorganic “sandwich” compound. Role of Boron and Osmium Boron is chemically similar to carbon and can form ring structures. Computer modelling identified osmium as the best metal to stabilise the boron sandwich structure. Method Used Researchers reacted: A polymeric osmium-bromine precursor With a borane-dimethyl sulphide reagent The mixture was heated to 100°C for eight hours. The final product was isolated as a colourless solid. Significance of the Discovery The hydrogen bridges strengthen bonding with the metal. The compound may help develop: High-temperature stable catalysts Advanced inorganic materials The discovery proves that sandwich structures are not limited to carbon-based chemistry.
