The novel coordination polymer [Mn(Andolast)(H2O)] was isolated in the form of air- and moisture- stable polycrystalline powders by reacting Mn(CH3COO)24H2O and the sodium salt of N-4-(1H- tetrazol-5-yl)phenyl-4-(1H-tetrazol-5-yl) benzamide (Na2Andolast). The crystal structure of [Mn(Andolast)(H2O)], determined by powder X-ray diffraction (PXRD) structure solution methods, is composed by 1-D double-chain motifs. The thermal behavior of [Mn(Andolast)(H2O)] was investigated by coupling thermal analyses to variable-temperature PXRD: water evolution takes place in the range 80–250 °C with no change of the unit cell parameters up to 180 °C; at 200 °C, a low-crystallinity phase is formed, surviving up to 300 °C. The electronic transition spectroscopic properties of both Na2Andolast and the coordination polymer were assessed, with particular care to luminescence: [Mn(Andolast)(H2O)] is luminescent already at room temperature, even if its emission is reduced with respect to that of Na2Andolast, mainly as a consequence of the enhanced rate of non-radiative decays

Synthesis, structural features and luminescence properties of a 1-D poly(azolato)-based coordination polymer

MASPERO, ANGELO;CIMINO, ALESSANDRO;GALLI, SIMONA;NARDO, LUCA
2015-01-01

Abstract

The novel coordination polymer [Mn(Andolast)(H2O)] was isolated in the form of air- and moisture- stable polycrystalline powders by reacting Mn(CH3COO)24H2O and the sodium salt of N-4-(1H- tetrazol-5-yl)phenyl-4-(1H-tetrazol-5-yl) benzamide (Na2Andolast). The crystal structure of [Mn(Andolast)(H2O)], determined by powder X-ray diffraction (PXRD) structure solution methods, is composed by 1-D double-chain motifs. The thermal behavior of [Mn(Andolast)(H2O)] was investigated by coupling thermal analyses to variable-temperature PXRD: water evolution takes place in the range 80–250 °C with no change of the unit cell parameters up to 180 °C; at 200 °C, a low-crystallinity phase is formed, surviving up to 300 °C. The electronic transition spectroscopic properties of both Na2Andolast and the coordination polymer were assessed, with particular care to luminescence: [Mn(Andolast)(H2O)] is luminescent already at room temperature, even if its emission is reduced with respect to that of Na2Andolast, mainly as a consequence of the enhanced rate of non-radiative decays
2015
Coordination polymers; (Tetrazolato)-based ligands; Powder X-ray diffraction; Thermal behavior; Luminescence
Colombo, Valentina; Maspero, Angelo; Nardo, Luca; Aprea, Alessia; Linares, Fatima; Cimino, Alessandro; Galli, Simona; Nardo, Luca
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11383/2019722
 Attenzione

L'Ateneo sottopone a validazione solo i file PDF allegati

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 5
  • ???jsp.display-item.citation.isi??? 5
social impact