Issue 6, 2007

Construction of 2-D lanthanide coordination frameworks: syntheses, structures and luminescent property

Abstract

A series of layered lanthanide coordination frameworks [Ln4(NIPH)6(H2O)4]·(4,4′-bipy) [Ln = La (1), Pr (2)], [La(NIPH)2(H2O)2]·0.5(4,4′-H2bipy) (3), Ln(NIPH)2(H2O)2]·0.5(4,4′-H2bipy)·2H2O [Ln =Pr (4), Nd (5)], and [Ln(NIPH)2]·0.5(4,4′-H2bipy) [Ln = Sm (6), Eu (7), Tb (8), Ho (9), Yb (10)] (NIPH = 5-nitroisophthalate and 4,4′-bipy = 4,4′-bipyridine) have been synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction. All the coordination frameworks display identical crystal system (triclinic) and space group (P[1 with combining macron]). Compounds 1 and 2 are isostructural, their coordination sheets are constructed by polynuclear helical-like chains. Compounds 3–5 are extremely similar in structure, in which Ln atoms are bridged into rod-shaped chains by carboxylate groups. For compounds 6–10, the coordination layers are built up from 1-D zig-zag chains. The 3-D supramolecular frameworks of 1–10 are finally formed through the alternate stack of Ln coordination layers and 4,4′-bipy layers based on hydrogen bonding interactions. Compound 7 displays luminescent property.

Graphical abstract: Construction of 2-D lanthanide coordination frameworks: syntheses, structures and luminescent property

Supplementary files

Article information

Article type
Paper
Submitted
09 Feb 2007
Accepted
22 Mar 2007
First published
30 Mar 2007

CrystEngComm, 2007,9, 515-523

Construction of 2-D lanthanide coordination frameworks: syntheses, structures and luminescent property

J. Ye, J. Wang, J. Zhang, P. Zhang and Y. Wang, CrystEngComm, 2007, 9, 515 DOI: 10.1039/B702106B

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