Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.

Issue 9, 2020
Previous Article Next Article

Indium(iii) {2}-metallacryptates assembled from 2,6-dipicolinoyl-bis(N,N-diethylthiourea)

Author affiliations


Reactions of 2,6-dipicolinoylbis(N,N-diethylthiourea), H2Lpy, InCl3, MCl salts (M = Rb+, K+, Na+ or NH4+) and NEt3 in methanol give cationic {2}-metallacryptates of the composition [M⊂{In2(Lpy)3}]+ (M+ = Rb+, K+, Na+ or NH4+). They can be isolated as PF6 salts. The structural characterization of the products by means of spectroscopic methods and X-ray crystallography reveals host–guest assemblies, in which a monovalent guest cation M+ is encapsulated in the cryptand-like host compound {In2(Lpy)3}. The host–guest directional interactions are coordination or hydrogen bonds depending on the nature of the guest cation. A 15N NMR spectroscopic study on the inclusion compound with 15NH4+ cations reveals a dynamic structure of the corresponding {2}-metallacryptate in solution and partial exchange of the ammonium ions by coordinating solvents.

Graphical abstract: Indium(iii) {2}-metallacryptates assembled from 2,6-dipicolinoyl-bis(N,N-diethylthiourea)

Back to tab navigation

Supplementary files

Article information

27 Dec 2019
07 Feb 2020
First published
12 Feb 2020

New J. Chem., 2020,44, 3672-3680
Article type

Indium(III) {2}-metallacryptates assembled from 2,6-dipicolinoyl-bis(N,N-diethylthiourea)

C. T. Pham, M. Roca Jungfer and U. Abram, New J. Chem., 2020, 44, 3672
DOI: 10.1039/C9NJ06420F

Social activity

Search articles by author