The coordination ability of the pyridine derivative of cyclic triimidazole, namely 3-(pyridin 2-yl)triimidazotriazine (TT-Py) towards Cu(I) was explored. TT-Py is an appealing nitrogen-rich ligand characterized by the presence of three imidazole nitrogen atoms with trigonal symmetry and a pyridine moiety, available for coordination to metal ions. The multidentate nature of TT-Py allows to isolate, by reaction with CuI at room temperature, the one-dimensional coordination network [Cu2I2(TT-Py)]n (1). 1 is characterized by a rare structural network built-up by the combination in a 1:2 ratio of two common motifs for Cu(I) halides coordination polymers, which are the double stranded stair and the zig-zag chain. 1 displays one broad long-lived emission in the solid state, which has been associated, by the support of DFT and TDDFT calculation, with low-energy transitions of MLCT or XMLCT character.

A Rare Structural Motif for a Luminescent Cu(I) Coordination Polymer with 3-(Pyridin-2-yl)triimidazotriazine / D. Malpicci, D. Blasi, D. Marinotto, A. Forni, E. Cariati, E. Lucenti, L. Carlucci. - In: CRYSTALS. - ISSN 2073-4352. - 13:1(2023), pp. 149.1-149.10. [10.3390/cryst13010149]

A Rare Structural Motif for a Luminescent Cu(I) Coordination Polymer with 3-(Pyridin-2-yl)triimidazotriazine

D. Malpicci
Primo
;
D. Blasi
Secondo
;
D. Marinotto;E. Cariati;E. Lucenti
Penultimo
;
L. Carlucci
Ultimo
2023

Abstract

The coordination ability of the pyridine derivative of cyclic triimidazole, namely 3-(pyridin 2-yl)triimidazotriazine (TT-Py) towards Cu(I) was explored. TT-Py is an appealing nitrogen-rich ligand characterized by the presence of three imidazole nitrogen atoms with trigonal symmetry and a pyridine moiety, available for coordination to metal ions. The multidentate nature of TT-Py allows to isolate, by reaction with CuI at room temperature, the one-dimensional coordination network [Cu2I2(TT-Py)]n (1). 1 is characterized by a rare structural network built-up by the combination in a 1:2 ratio of two common motifs for Cu(I) halides coordination polymers, which are the double stranded stair and the zig-zag chain. 1 displays one broad long-lived emission in the solid state, which has been associated, by the support of DFT and TDDFT calculation, with low-energy transitions of MLCT or XMLCT character.
Cu coordination polymers; Cu(I) halides; photoluminescence; N-ligand
Settore CHIM/03 - Chimica Generale e Inorganica
2023
Article (author)
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/953333
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