Capture of CO2 by a Cationic Nickel(I) Complex in the Gas Phase and Characterization of the Bound, Activated CO2 Molecule by Cryogenic Ion Vibrational Predissociation Spectroscopy

Fabian S Menges; Stephanie M Craig; Niklas Tötsch; Aaron Bloomfield; Subrata Ghosh; Hans-Jörg Krüger; Mark A Johnson

doi:10.1002/anie.201507965

Capture of CO2 by a Cationic Nickel(I) Complex in the Gas Phase and Characterization of the Bound, Activated CO2 Molecule by Cryogenic Ion Vibrational Predissociation Spectroscopy

Angew Chem Int Ed Engl. 2016 Jan 22;55(4):1282-5. doi: 10.1002/anie.201507965. Epub 2015 Nov 24.

Authors

Fabian S Menges¹, Stephanie M Craig¹, Niklas Tötsch¹, Aaron Bloomfield¹, Subrata Ghosh², Hans-Jörg Krüger², Mark A Johnson³

Affiliations

¹ Department of Chemistry, Yale University, 225 Prospect St., New Haven, CT, 06511, USA.
² Fachbereich Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Strasse, 67663, Kaiserslautern, Germany.
³ Department of Chemistry, Yale University, 225 Prospect St., New Haven, CT, 06511, USA. mark.johnson@yale.edu.

PMID: 26596680
DOI: 10.1002/anie.201507965

Abstract

We describe a systematic method for the preparation and spectroscopic characterization of a CO2 molecule coordinated to an activated bisphenoidal nickel(I) compound containing a tetraazamacrocyclic ligand in the gas phase. The resulting complex was then structurally characterized by using mass-selected vibrational predissociation spectroscopy. The results indicate that a highly distorted CO2 molecule is bound to the metal center in an η(2)-C,O coordination mode, thus establishing an efficient and rational method for the preparation of metal-activated CO2 for further studies using ion chemistry techniques.

Keywords: CO2 activation; infrared spectroscopy; mass spectrometry; nickel.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.