Jump to main content
Jump to site search


Fixation of Atmospheric CO2 as Novel Carbonate-(Water)2-Carbonate Cluster and Entrapment of Double Sulfate Within Linear Tetrameric Barrel of Neutral Bis-Urea Scaffold

Abstract

A meta-phenylenediamine based disubstituted bis-urea receptor L1 with electron withdrawing 3-chloro and electron donating 4-methylphenyl terminals has been established as a potential system to fix and efficient capture of atmospheric CO2 as air stable entrapment of an unprecedented {CO32--(H2O)2-CO32-} cluster (complex 1a) within its tetrameric long straight piller like assembly entirely sealed by n-TBA cations via formation of barrel type architecture. L1 and its isomeric 4-bromo-3-methyl disubstituted bis-urea receptor L2 have been found to entrap similar kind of water free naked sulfate-sulfate double-anion (complex 1b and 2a) by cooperative binding of urea moieties inside the two pairs of inversion-symmetric linear tetrameric barrel of L1 and L2 respectively. On the other hand, in presence of excess halides L1 self-assembles to form hexa-coordinated fluoride complex 1c, tetra-coordinated bromide complex 1d and L2 self-assembles to form penta-coordinated fluoride complex 2b in solid state via semicircular of receptor architectures and non-cooperative H-bonding interactions of urea moieties.

Back to tab navigation

Supplementary files

Publication details

The article was received on 10 May 2017, accepted on 30 Jun 2017 and first published on 30 Jun 2017


Article type: Paper
DOI: 10.1039/C7DT01697B
Citation: Dalton Trans., 2017, Accepted Manuscript
  •   Request permissions

    Fixation of Atmospheric CO2 as Novel Carbonate-(Water)2-Carbonate Cluster and Entrapment of Double Sulfate Within Linear Tetrameric Barrel of Neutral Bis-Urea Scaffold

    U. Manna, S. Kayal, S. Samanta and G. Das, Dalton Trans., 2017, Accepted Manuscript , DOI: 10.1039/C7DT01697B

Search articles by author

Spotlight

Advertisements