Versatility of Cyclic Triimidazole to Assemble 1D, 2D, and 3D Cu(I) Halide Coordination Networks
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LUCENTI, Elena; CARIATI, Elena; PREVITALI, A.; MARINOTTO, D.; FORNI, Alessandra; BOLD, Victor; KRAVTSOV, Viktor; FONARI, Marina; GALLI, Simona; CARLUCCI, L.. Versatility of Cyclic Triimidazole to Assemble 1D, 2D, and 3D Cu(I) Halide Coordination Networks. In: Crystal Growth and Design. 2019, nr. 3(19), pp. 1567-1575. ISSN 1528-7483.
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Crystal Growth and Design
Numărul 3(19) / 2019 / ISSN 1528-7483

Versatility of Cyclic Triimidazole to Assemble 1D, 2D, and 3D Cu(I) Halide Coordination Networks


DOI: 10.1021/acs.cgd.8b01199
Pag. 1567-1575

Lucenti Elena12, Cariati Elena12, Previtali A.3, Marinotto D.1, Forni Alessandra1, Bold Victor4, Kravtsov Viktor4, Fonari Marina4, Galli Simona2, Carlucci L.35
 
1 ISTM-CNR, Istituto di Scienze e Tecnologie Molecolari,
2 Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali,
3 Universitatea din Milano, Italia,
4 Institute of Applied Physics,
5 Necunoscută, Italia
 
Disponibil în IBN: 26 martie 2019


Rezumat

Cyclic triimidazole (C 9 H 6 N 6 , L), with C 3h molecular symmetry and three nitrogen atoms available for coordination, is here successfully employed for the first time in the synthesis of coordination compounds. In particular, by varying the reaction conditions (e.g., solvent, temperature, template), seven Cu(I)-halide coordination polymers of different dimensionality are obtained: Two 1D polymers, [CuIL] n (1) and {[CuIL]·(I 2 ) 0.5 } n (2), three 2D nets, [CuXL] n (X = I, Br) (3-5), and two 3D networks, [CuClL] n (6) and {[Cu 3 L 4 ]I 3 } n (7). Single crystal X-ray diffraction analysis reveals that the structural versatility of both the ligand and the CuX moiety allows isolating 1D double-stranded stairs in which L is monodentate, 2D layers containing either Cu 2 (μ-X) 2 or Cu 2 (μ-X) moieties and bidentate L ligands, 3D frameworks built up by tridentate L linkers and either monodentate or noncoordinating halogen atoms. The 3D frameworks show nets of srs and bor topologies. The SHG efficiency of powders of 7 (the only noncentrosymmetric derivative of the series) is 10 times higher than that of sucrose. Phosphorescent emission of XLCT character is observed for 1 and 6.

Cuvinte-cheie
Crystal atomic structure, D region, Harmonic generation, ligands, Polymers, single crystals, X ray powder diffraction