Issue 8, 2012

New photoluminescence acylhydrazidate-coordinated complexes


Under the hydrothermal conditions, five new acylhydrazidate-containing compounds [Cd(EPDH)2(H2O)] 1, [Cd(MPDH)2] 2, [Zn(MPDH)2(H2O)2]·2H2O 3, [Pb2(ODPTH)2(phen)2(H2O)2] 4 and [Cd2(APTH)4(phen)2]·2H2O 5 (EPDH = 5-ethylpyridine-2,3-dicarboxylhydrazidate, MPDH = 6-methylpyridine-2,3-dicarboxylhydrazidate, ODPTH = 4,4′-oxydiphthalhydrazidate, APTH = 3-amiophthalhydrazidate, phen = 1,10-phenanthroline) were luckily obtained. Note that MPDH, EPDH and ODPTH were derived from the hydrothermal in situacylation reactions between organic polycarboxylic acids and N2H4·H2O, whereas APTH originated from the hydrothermal in situreduction reaction of NPTH (NPTH = 3-nitrophthalhydrazidate) in the presence of N2H4·H2O. The photoluminescence analysis indicates that all of the title compounds are fluorescent materials with maximum emissions at 530 nm for 1, 540 nm for 2, 517 nm for 3, 413 nm for 4 and 563 nm for 5, respectively. The density functional theory (DFT) calculations on the excited electronic states of compound 3 indicate that the emission is associated with the ligands, corresponding to the charge transfer from the π orbital of the acylhydrazidate ring to the π* orbital of the pyridine ring.

Graphical abstract: New photoluminescence acylhydrazidate-coordinated complexes

Supplementary files

Article information

Article type
29 Sep 2011
14 Nov 2011
First published
23 Dec 2011

Dalton Trans., 2012,41, 2382-2392

New photoluminescence acylhydrazidate-coordinated complexes

J. Jin, F. Bai, M. Jia, Y. Peng, J. Yu and J. Xu, Dalton Trans., 2012, 41, 2382 DOI: 10.1039/C1DT11846C

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