From pink to blue and back to pink again: changing the Co(II) ligation in a two-dimensional coordination network upon desolvation

Diana Chisca; Lilia Croitor; Eduard B. Coropceanu; Oleg Petuhov; Svetlana G. Baca; Karl Krämer; Shi-Xia Liu; Silvio Decurtins; Hector J. Rivera-Jacquez; Artëm E. Masunov; Marina S. Fonari

doi:10.1039/C5CE01581B

From pink to blue and back to pink again: changing the Co(ii) ligation in a two-dimensional coordination network upon desolvation†

Diana Chisca,^a Lilia Croitor,^a Eduard B. Coropceanu,^b Oleg Petuhov,^b Svetlana G. Baca,^a Karl Krämer,^c Shi-Xia Liu,^c Silvio Decurtins,^c Hector J. Rivera-Jacquez,^d Artëm E. Masunov^de and Marina S. Fonari*^a

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^a Institute of Applied Physics Academy of Sciences of R. Moldova, Academy str., 5, Chisinau, Moldova
E-mail: fonari.xray@phys.asm.md
Fax: +373 22 725887
Tel: +373 22 738154

^b Institute of Chemistry Academy of Sciences of R. Moldova, Academy str., 3, Chisinau, Moldova

^c Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012-Bern, Switzerland

^d NanoScience Technology Center, Department of Chemistry, Department of Physics, and Florida Solar Energy Center, University of Central Florida, 12424 Research Parkway, Ste. 400, Orlando, Florida 32826, USA

^e Department of Condensed Matter Physics, National Research Nuclear University MEPhI, Kashirskoye shosse 31, Moscow, 115409, Russia

Abstract

Heating of a pink two-dimensional Co(II) coordination network {[Co₂(μ₂-OH₂)(bdc)₂(S-nia)₂(H₂O)(dmf)]·2(dmf)·(H₂O)}_n (1) built from 1,4-benzenedicarboxylic acid (H₂bdc) residues and thionicotinamide (S-nia) ligands initiates a single-crystal-to-single-crystal transition accompanied by removal of both coordinated and co-crystallized solvents. In the dry blue form, [Co(bdc)(S-nia)]_n (dry_1), the Co(II) centers changed from an octahedral to a square pyramidal configuration.

CrystEngComm

From pink to blue and back to pink again: changing the Co(ii) ligation in a two-dimensional coordination network upon desolvation†

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From pink to blue and back to pink again: changing the Co(II) ligation in a two-dimensional coordination network upon desolvation

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