Department of Chemistry
Multinuclear NIR luminescent 1,4-BDC bridged Schiff-base complexes of Nd(III)
Solvent and reaction stoichiometry dictate the products isolated from reactions of the dinuclear precursor complex [ZnNdL(H2O)(NO3)3] (H2L = N,N′-bis(3-methoxy-salicylidene)ethylene-1,2-diamine) with the anionic multidentate linker 1,4-benzenedicarboxylate (1,4-BDC). With a 2:1 molar ratio of ZnNd:Na21,4-BDC in CH3CN-EtOH the tetranuclear complex [Zn2Nd2L2(1,4-BDC)(NO3)4(EtOH)2] · 2MeCN (1) is produced while hexanuclear [Zn4Nd2L4(1,4-BDC)2] · (NO3)2 · 2Et2O · 4H2O (2) can be isolated from a DMF-EtOH mixture. A 4:1 mole ratio in DMF-EtOH gave the unusual polynuclear complex [Zn4Nd2L4(1,4-BDC)2] · [ZnNdL(NO3)3(OAc)]2 (3). The NIR photophysical properties of the new compounds are reported. © 2008 Elsevier Ltd. All rights reserved.
1, 4-Benzenedicarboxylate, 3d-4f complex, Nd(III), NIR luminescence, Schiff-base, X-ray crystallography
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Lü, Xingqiang, Weiyu Bi, Wenli Chai, Jirong Song, Jianxin Meng, Wai-Yeung Wong, Wai-Kwok Wong, Xiaoping Yang, and Richard A. Jones. "Multinuclear NIR luminescent 1,4-BDC bridged Schiff-base complexes of Nd(III)." Polyhedron 28.1 (2009): 27-32.