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Issue 18, 2018
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General strategy for lanthanide coordination polymers constructed from 1,1′-ferrocenedicarboxylic acid under hydrothermal conditions

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Abstract

Twenty-six lanthanide coordination polymers (CPs), Ln2(fcd)2(phen)2(NO3)2 (Ln = Nd (1-Nd)), [Ln2(fcd)3(phen)2]·(CH3OH)2 (Ln = Sm (2-Sm), Eu (2-Eu), Gd (2-Gd), and Tb (2-Tb)), Ln2(fcd)2(Hfcd)2(phen)2 (Ln = La (3-La), Ce (3-Ce), Pr (3-Pr), Nd (3-Nd), Sm (3-Sm), and Gd (3-Gd)), [Ln2(fcd)3(CH3CH2OH)2(H2O)2]·H2O (Ln = La (4-La), Ce (4-Ce), Pr (4-Pr), Nd (4-Nd), Sm (4-Sm), Eu (4-Eu), Gd (4-Gd), Tb (4-Tb), Dy (4-Dy), Er (4-Er), Tm (4-Tm) and Yb (4-Yb)), and [Ln4(fcd)6(H2O)2nCH3CH2OH (Ln = Sm (5-Sm), Eu (5-Eu) and Tb (5-Tb)), were obtained from the reaction between 1,1′-ferrocenedicarboxylic acid (H2fcd), 1,10-phenanthroline (phen) and the corresponding lanthanide salts under hydrothermal conditions. Ln2(fcd)2(phen)2(NO3)2 (1-Nd) was constructed from discrete and neutral 0D dimeric units; [Ln2(fcd)3(phen)2]·(CH3OH)2 (2-Sm/Eu/Gd/Tb) and Ln2(fcd)2(Hfcd)2(phen)2 (3-La/Ce/Pr/Nd/Sm/Gd) were built up of 1D infinite chains, while [Ln2(fcd)3(CH3CH2OH)2(H2O)2]·H2O (4-La/Ce/Pr/Nd/Sm/Eu/Gd/Tb/Dy/Er/Tm/Yb) and [Ln4(fcd)6(H2O)2nCH3CH2OH (5-Sm, n = 0.33; 5-Eu, n = 0.31; 5-Tb, n = 0.30) were made up of 2D sheets. The different structures of these twenty-six CPs can be attributed to the variable conformations of fcd resulting from different reaction conditions like different counterions, ancillary ligands, temperatures, and solvents. Furthermore, the photoluminescence and magnetic properties of selected CPs have been characterized and discussed.

Graphical abstract: General strategy for lanthanide coordination polymers constructed from 1,1′-ferrocenedicarboxylic acid under hydrothermal conditions

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Supplementary files

Article information


Submitted
11 Feb 2018
Accepted
10 Apr 2018
First published
10 Apr 2018

CrystEngComm, 2018,20, 2608-2616
Article type
Paper

General strategy for lanthanide coordination polymers constructed from 1,1′-ferrocenedicarboxylic acid under hydrothermal conditions

X. Du, W. Zheng, X. Yi, J. Zhao, P. Wang and C. Wang, CrystEngComm, 2018, 20, 2608
DOI: 10.1039/C8CE00233A

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