Absorption of atmospheric CO2 as carbonate inside the molecular cavity of a new tripodal hexaurea receptor

Avijit Pramanik; Maryam Emami Khansari; Douglas R Powell; Frank R Fronczek; Md Alamgir Hossain

doi:10.1021/ol403186k

Absorption of atmospheric CO2 as carbonate inside the molecular cavity of a new tripodal hexaurea receptor

Org Lett. 2014 Jan 17;16(2):366-9. doi: 10.1021/ol403186k. Epub 2013 Dec 18.

Authors

Avijit Pramanik¹, Maryam Emami Khansari, Douglas R Powell, Frank R Fronczek, Md Alamgir Hossain

Affiliation

¹ Department of Chemistry and Biochemistry, Jackson State University , Jackson, Mississippi 39217, United States.

Abstract

A new hexaurea receptor has been synthesized, which absorbs atmospheric CO2 to produce an air-stable solid carbonate complex under normal conditions. Structural analysis of the carbonate complex with this receptor suggests that the carbonate is fully encapsulated within its highly organized intramolecular cavity via 12 strong NH···O bonds in the range of 2.703(3)-2.989(3) Å from six urea units, with each anionic oxygen coordinated via four NH···O bonds with two urea groups.

Publication types

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

MeSH terms

Absorption
Anions / chemistry
Atmosphere
Carbon Dioxide / chemistry*
Carbonates / chemistry*
Crystallography, X-Ray
Models, Molecular
Molecular Structure
Nuclear Magnetic Resonance, Biomolecular
Oxygen / chemistry
Urea / chemistry*

Substances

Anions
Carbonates
Carbon Dioxide
Urea
Oxygen

Abstract

Publication types

MeSH terms

Substances

Grants and funding