MUMBAI, India, March 13 -- Intellectual Property India has published a patent application (202641001250 A) filed by Christ University, Bengaluru, Karnataka, on Jan. 6, for 'bifunctional lewis/bronsted acidic tin metal organic framework with pendant carboxylic acid groups.'
Inventor(s) include Pushparaj L; Muthukumar D; and Sunaja Devi K. R.
The application for the patent was published on March 13, under issue no. 11/2026.
According to the abstract released by the Intellectual Property India: "Herein, we report the synthesis of a new bifunctional tin-based metal-organic framework (Sn- H2BTC-bpy-COOH) is disclosed, comprising Sn nodes coordinated by benzene-l,3,5-tricarboxylate (H2BTC2;) and 4,4'-bipyridine linkers, in which two carboxylate groups of each benzene-1,3,5-tricarboxylate bind to tin while the third remains as a free, pore-directed -COOH group, yielding a porous framework that combines Lewis-acidic Sn centers with Bronsted-acidic pendant carboxylic acids. This MOF synthesized by a hydrothermal, water-based synthesis using tin(II) sulfate, benzene-l,3,5-tricarboxylic acid, 4,4'-bipyridine, and potassium hydroxide under autogenous pressure at 170 C without toxic organic solvents such as N,N-dimethylformamide, and its crystalline structure is confirmed by single-crystal X-ray diffraction and complementary solid-state characterization. The resulting Sn-MOF provides a robust platform for potential adsorption and heterogeneous catalytic applications in which cooperative interactions between Lewis-acidic metal nodes and Bronsted-acidic -COOH sites can be exploited for binding and transforming polar or Lewis-basic contaminants in gas or liquid phases."
Disclaimer: Curated by HT Syndication.
