title: Metal-Free Reduction of CO2to Methoxyborane under Ambient Conditions through Borondiformate Formation.
abstract: An abnormal N-heterocyclic carbene (aNHC) based homogeneous catalyst has been used for the reduction of carbon dioxide to methoxyborane in the presence of a range of hydroboranes under ambient conditions and resulted in the highest turnover number of 6000. A catalytically active reaction intermediate, [aNHC-H⋅9BBN(OCOH)2] was structurally characterized and authenticated by NMR spectroscopy. A detailed mechanistic cycle of this catalytic process via borondiformate formation has been proposed from tandem experimental and computational experiments.
authors.affiliation: Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, Nadia, West Bengal, India.
authors.forename: Samaresh Chandra
authors.initials: SC
authors.lastname: Sau
authors.affiliation: Department of Spectroscopy, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Jadavpur, 700032, Kolkata, West Bengal, India.
authors.forename: Rameswar
authors.initials: R
authors.lastname: Bhattacharjee
authors.affiliation: Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, Nadia, West Bengal, India.
authors.forename: Pavan K
authors.initials: PK
authors.lastname: Vardhanapu
authors.affiliation: Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, Nadia, West Bengal, India.
authors.forename: Gonela
authors.initials: G
authors.lastname: Vijaykumar
authors.affiliation: Department of Spectroscopy, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Jadavpur, 700032, Kolkata, West Bengal, India.
authors.forename: Ayan
authors.initials: A
authors.lastname: Datta
authors.affiliation: Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, Nadia, West Bengal, India.
authors.forename: Swadhin K
authors.initials: SK
authors.lastname: Mandal
keywords: CO2 reduction; boranes; carbenes; metal-free catalysis; reactive intermediates