Acid-assisted hydrogenation of CO2 to methanol using Ru(II) and Rh(III) RAPTA-type catalysts under mild conditions

Manoj Trivedi; Pooja Sharma; Indresh Kumar Pandey; Abhinav Kumar; Sanjay Kumar; Nigam P Rath

doi:10.1039/d1cc03049c

Acid-assisted hydrogenation of CO₂ to methanol using Ru(II) and Rh(III) RAPTA-type catalysts under mild conditions

Chem Commun (Camb). 2021 Aug 16. doi: 10.1039/d1cc03049c. Online ahead of print.

Authors

Manoj Trivedi¹, Pooja Sharma², Indresh Kumar Pandey², Abhinav Kumar³, Sanjay Kumar⁴, Nigam P Rath⁵

Affiliations

¹ Department of Chemistry, University of Delhi, Delhi-110007, India. [email protected] and Department of Chemistry, Sri Venkateswara College, University of Delhi, New Delhi-110021, India.
² Department of Chemistry, Dhirendra Mahila PG College, Varanasi-221005, India.
³ Department of Chemistry, University of Lucknow, Lucknow-226007, India.
⁴ Department of Chemistry, Sri Venkateswara College, University of Delhi, New Delhi-110021, India.
⁵ Department of Chemistry & Biochemistry and Centre for Nanoscience, University of Missouri-St. Louis, One University Boulevard, St. Louis, MO 63121-4499, USA. [email protected].

PMID: 34397067
DOI: 10.1039/d1cc03049c

Abstract

A highly efficient homogeneous catalyst system for production of CH3OH from CO2 using single molecular defined ruthenium and rhodium RAPTA-type catalysts [Ru(η6-p-cymene)X2(PTA)] (X = I(1), Cl(2); PTA = 1,3,5-triaza-7-phosphaadamantane) and rhodium catalysts [Rh(η5-C5Me5)X2(PTA/PTA-BH3)] (X = Cl(3), H(4) and PTA-BH3, H(5)) developed in acidic media under mild conditions. A TON of 4752 is achieved using a [Ru(η6-p-cymene)I2(PTA)] catalyst which represents the first example of CO2 hydrogenation to CH3OH using single molecular defined Ru and Rh RAPTA-type catalysts.