Solvent- and tatrz-induced single-crystal-to-single-crystal transformations within cobalt(ii)-triazole MOFs: a luminescent probe for frankincense†
Abstract
A 2D MOF, {[Co(tatrz)(ipa)]·H2O}n (1), with mixed ligands tatrz and ipa was isolated. Solvent exchange experiment indicated that the water molecule can be replaced by DMF as evidenced by the SC–SC transformation product of {[Co(tatrz)(ipa)]·DMF}n (2). When 1 is immersed in the tatrz solution, {[Co(tatrz)(ipa)(H2O)]·(tatrz)0.5}n (3) can be obtained, showing SC–SC transformation. Importantly, 3 represents the first luminescent sensor for frankincense.