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SM ISO690:2012 LOZOVAN, Vasile, KRAVTSOV, Victor, COSTRIUCOVA, Natalia, SIMINEL, Anatolii, KULIKOVA, Olga, FONARI, Marina. Tunability in dimension, metal and ligand coordination modes and emission properties in Cd(II) and Zn(II) coordination networks based on 4,4’-(hydrazine-1,2-diyilidenebis(methanylylidene)) dibenzoic acid linker. In: Journal of Solid State Chemistry, 2022, nr. 310, p. 0. ISSN 0022-4596. DOI: https://doi.org/10.1016/j.jssc.2022.123021 |
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Journal of Solid State Chemistry | ||||||
Numărul 310 / 2022 / ISSN 0022-4596 | ||||||
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DOI:https://doi.org/10.1016/j.jssc.2022.123021 | ||||||
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Cd(II) and Zn(II) coordination polymers based on dicarboxylic azine chromophore, 4,4'-(hydrazine-1,2-diylidenebis(methanylylidene)) dibenzoic acid (H2(4-dbahz)), were obtained and include 1D coordination polymer {[Cd(4-dbahz)(dmso)2(H2O)]·(dmso)2}n (1, 2) in the forms of monoclinic and orthorhombic polymorphs, 2D coordination grid {[Zn(4-dbahz)(dmso)]·0.5(dmso·dmf)}n (3), and 3D MOF {[Cd2(4-dbahz)2(dmso)2]·dmso}n (4). The coordination compounds and H2(4-dbahz) chromophore were studied using spectroscopic (FTIR, NMR, PL) and X-ray diffraction methods of analysis. The organic chromophore H2(4-dbahz) reveals dual emission indicated by the emission bands in the high and low energy regions of spectrum. The tuning of emission properties was followed for the as-synthesized coordination polymers 1, 3, 4 and their desolvated products and showed excellent sensing of solvated dmso. The significant enhancement of photoluminescence in the blue region in 1 is associated with elimination of π-π stacking interactions due to accommodation of dmso solvent. |
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Cuvinte-cheie coordination polymers, crystal structure, dicarboxylic azine ligand, Photoluminescence Properties |
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