Issue 9, 2014

In situ synthesis and structural characterization of a series of acylhydrazidate-extended Ln3+ and Zn2+ coordination polymers

Abstract

By utilizing the in situ hydrothermal acylation of N2H4 with aromatic polycarboxylic acids, a series of new acylhydrazidate-extended two-dimensional (2-D) or three-dimensional (3-D) coordination polymers, [Ln(epdh)3(H2O)] (Ln3+ = Dy3+1, Eu3+2, Tb3+3, Gd3+4, Y3+5, Lu3+6; epdh = 5-ethylpyridine-2,3-dicarboxylhydrazidate), [Dy(ox)(pdh)(H2O)] (ox = oxalate, pdh = pyridine-2,3-dicarboxylhydrazidate) 7, [Zn2(mpth)(atez)2] (mpth = 4-methylphthalhydrazidate, atez = 5-aminotetrazolate) 8 and [Zn3(OH)2(Hpth)2(atrz)2] (pth = phthalhydrazidate, atrz = 3-amino-1,2,4-triazolate) 9 were isolated. X-ray single-crystal diffraction revealed that (i) the isomorphic compounds 1–6 posses 2-D layer structures with (4,4) topologies. Two types of epdh molecules act as the rod-like connectors; (ii) compound 7 also possesses a 2-D layer structure, but shows a (6,3) topology. The pdh molecules first link the Dy3+ ions into a dimer. The ox molecules further extend the dimers into this 2-D layer network; (iii) compound 8 has a 3-D network structure (symbol: (4·64·8)2(42·62·82)), which is constructed from the one-dimensional (1-D) Zn2(mpth)2+ chains by the atez molecules; (iv) the 2-D layer network of compound 9 also shows a (6,3) topology, but the geometrical form is different from that of compound 7. Only the atrz molecule serves as the linker in compound 9; (v) via the N–H⋯O and/or N–H⋯N interactions, compounds 1–6, 7 and 9 self-assemble into the different 3-D supramolecular networks. Photoluminescence analysis revealed that (i) compounds 2 and 3 exhibit the characteristic transitions of the Eu3+ or Tb3+ ion; (ii) compounds 1, 4, 5 and 6 emit green light, suggesting their behaviors are dominated by the epdh molecules; (iii) compound 8 emits violet light, whereas compound 9 does not emit light.

Graphical abstract: In situ synthesis and structural characterization of a series of acylhydrazidate-extended Ln3+ and Zn2+ coordination polymers

Supplementary files

Article information

Article type
Research Article
Submitted
22 jul. 2014
Accepted
20 ago. 2014
First published
20 ago. 2014

Inorg. Chem. Front., 2014,1, 673-681

In situ synthesis and structural characterization of a series of acylhydrazidate-extended Ln3+ and Zn2+ coordination polymers

Y. Wang, J. Yu and J. Xu, Inorg. Chem. Front., 2014, 1, 673 DOI: 10.1039/C4QI00100A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements