Next Article in Journal
The Effect of Polyethylene Terephthalate Nanoplastics on Amyloid-β Peptide Fibrillation
Previous Article in Journal
Unveiling the Micro-Mechanism of Functional Group Regulation for Enhanced Dielectric Properties in Novel Natural Ester Insulating Oil TME-C10
Previous Article in Special Issue
Multi-Hydrogen Bonding on Quaternized-Oligourea Receptor Facilitated Its Interaction with Bacterial Cell Membranes and DNA for Broad-Spectrum Bacteria Killing
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Molecules
Volume 30
Issue 7
10.3390/molecules30071430
molecules-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Structural Rearrangement in Cyclic Cu(II) Pyridyltriazole Complexes: Oxidation of Dabco to Oxalate and CO2 Conversion to Carbonate

by
Uttam R. Pokharel
1,*,
Frank R. Fronczek
2 and
Andrew W. Maverick
2,*
1
Department of Physical & Applied Science, University of Houston—Clear Lake, Houston, TX 77058, USA
2
Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
*
Authors to whom correspondence should be addressed.
Molecules 2025, 30(7), 1430; https://doi.org/10.3390/molecules30071430
Submission received: 27 February 2025 / Revised: 18 March 2025 / Accepted: 18 March 2025 / Published: 24 March 2025
(This article belongs to the Special Issue Host–Guest Inclusion Complexes and Their Miscellaneous Applications)
Browse Figures
Versions Notes

Abstract

Structural rearrangements in metal–organic supramolecules constructed from the coordination of Cu(II) with m-xpt (m-xylylenebis(pyridyltriazole)) are investigated upon their interaction with 1,4-diazabicyclo[2.2.2]octane (dabco) and carbon dioxide-enriched air. The binuclear [Cu2(m-xpt)2]4+ complexes react with dabco to produce a carbonate-bridged trinuclear complex, [Cu3(m-xpt)3(µ-CO3)]4+, and an oxalate-bridged binuclear complex, [Cu2(m-xpt)2(µ-C2O4)]2+, where carbonate and oxalate likely originate from CO2 and dabco, respectively. The trinuclear complex reassembles the original dimer upon the removal of the carbonate ion. Similarly, polymeric [Cu(o-xpt)(PF6)]n, formed from Cu(I) and o-xpt (o-xylylenebis(pyridyltriazole)) coordination, undergoes oxidation in CO2-enriched air to yield a tetranuclear Cu(II) complex, Cu4(o-xpt)3(μ4-CO3)(μ2-OH)(μ2-OCOCH3)4+. The reaction progress is monitored by UV-Vis spectroscopy, and the major products are characterized by single-crystal X-ray diffraction.
Keywords: rearrangements; metal–organic supramolecules; dabco; carbonate and oxalate bridges; copper(II) complexes; pyridyltriazole; oxidative transformation; host–guest complex rearrangements; metal–organic supramolecules; dabco; carbonate and oxalate bridges; copper(II) complexes; pyridyltriazole; oxidative transformation; host–guest complex
Graphical Abstract

Share and Cite

MDPI and ACS Style

Pokharel, U.R.; Fronczek, F.R.; Maverick, A.W. Structural Rearrangement in Cyclic Cu(II) Pyridyltriazole Complexes: Oxidation of Dabco to Oxalate and CO2 Conversion to Carbonate. Molecules 2025, 30, 1430. https://doi.org/10.3390/molecules30071430

AMA Style

Pokharel UR, Fronczek FR, Maverick AW. Structural Rearrangement in Cyclic Cu(II) Pyridyltriazole Complexes: Oxidation of Dabco to Oxalate and CO2 Conversion to Carbonate. Molecules. 2025; 30(7):1430. https://doi.org/10.3390/molecules30071430

Chicago/Turabian Style

Pokharel, Uttam R., Frank R. Fronczek, and Andrew W. Maverick. 2025. "Structural Rearrangement in Cyclic Cu(II) Pyridyltriazole Complexes: Oxidation of Dabco to Oxalate and CO2 Conversion to Carbonate" Molecules 30, no. 7: 1430. https://doi.org/10.3390/molecules30071430

APA Style

Pokharel, U. R., Fronczek, F. R., & Maverick, A. W. (2025). Structural Rearrangement in Cyclic Cu(II) Pyridyltriazole Complexes: Oxidation of Dabco to Oxalate and CO2 Conversion to Carbonate. Molecules, 30(7), 1430. https://doi.org/10.3390/molecules30071430

Article Metrics

Back to TopTop