Probing the Charge Transfer in a Frustrated Lewis Pair by Resonance Raman Spectroscopy and DFT Calculations

Marques, Leandro Ramos; Ando, Romulo Augusto

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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Probing the Charge Transfer in a Frustrated Lewis Pair by Resonance Raman Spectroscopy and DFT Calculations

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Author(s):	Marques, Leandro Ramos ^[1] ; Ando, Romulo Augusto ^[1] Total Authors: 2
Affiliation:	^[1] Univ Sao Paulo, Dept Fundamental Chem, Inst Chem, Ave Prof Lineu Prestes 748, BR-05508000 Sao Paulo, SP - Brazil Total Affiliations: 1
Document type:	Journal article
Source:	ChemPhysChem; v. 22, n. 6 FEB 2021.
Web of Science Citations:	0
Abstract
A classical Lewis adduct derives from a covalent bond between a Lewis acid and a base. When the adduct formation is precluded by means of steric hindrance the association of the respective acid-base molecular system is defined as a frustrated Lewis pair (FLP). In this work, the archetypal FLP Mes(3)P/B(C6F5)(3) was characterized for the first time by resonance Raman spectroscopy, and the results were supported by density functional theory (DFT) calculations. The charge transfer nature of the lowest energy electronic transition, from phosphine to borane, was confirmed by the selective enhancement of the Raman bands associated to the FLP chromophore at resonance condition. Herein, we demonstrate the use of resonance Raman spectroscopy as a distinguished technique to probe the weak interaction involved in FLP chemistry. (AU)

FAPESP's process:	16/21070-5 - Vibrational spectroscopy with spatial resolution
Grantee:	Mauro Carlos Costa Ribeiro
Support Opportunities:	Research Projects - Thematic Grants

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