A1 Journal article (refereed)
Water and oxoanion encapsulation chemistry in a 1H-pyrazole azacryptand (2019)


Pitarch-Jarque, Javier; Rissanen, Kari; García-Granda, Santiago; Lopera, Alberto; Clares, M. Paz; García-España, Enrique; Blasco, Salvador (2019). Water and oxoanion encapsulation chemistry in a 1H-pyrazole azacryptand. New Journal of Chemistry, 43 (47), 18915-18924. DOI: 10.1039/C9NJ05231C


JYU authors or editors


Publication details

All authors or editors: Pitarch-Jarque, Javier; Rissanen, Kari; García-Granda, Santiago; Lopera, Alberto; Clares, M. Paz; García-España, Enrique; Blasco, Salvador

Journal or series: New Journal of Chemistry

ISSN: 1144-0546

eISSN: 1369-9261

Publication year: 2019

Volume: 43

Issue number: 47

Pages range: 18915-18924

Publisher: Royal Society of Chemistry

Publication country: United Kingdom

Publication language: English

DOI: https://doi.org/10.1039/C9NJ05231C

Open Access: Publication channel is not openly available


Abstract

Anion complexes of the cryptand built with the tripodal amine tris(2-aminoethyl)amine, known as tren, with water and several oxoanions of biological and environmental interest (nitrate, sulfate, phosphate, perchlorate and arsenate) have been crystallized from aqueous solution and resolved with single-crystal X-ray diffraction. All crystals show guest species encapsulated in the interior of the cavity as well as, in some cases, sitting in the grooves defined by the arms of the macrocycle. Hydrogen bonding and electrostatic interactions play a major role in anion binding to the host. The macrocycle is able to encapsulate anions in a wide range of protonation degrees. Solution studies have been carried out to show that those interactions happen also in solution in addition to the solid state. The results show that the receptor binds consistently to the ligand in a wide range protonation degrees.


Keywords: supramolecular chemistry; anions; chemical bonds


Contributing organizations


Ministry reporting: Yes

Reporting Year: 2019

JUFO rating: 1


Last updated on 2020-09-07 at 11:51