Synthesis, Structure, Luminescent and Thermal Properties of Ytterbium(III) and Dysprosium(III) Complexes with 5-Sulfoisophthalic Acid Sodium Salt

• Published in: ZAAC - Journal of Inorganic and General Chemistry Vol. 637; no. 5; pp. 602 - 607
• Main Authors: Wu, Gang, Yin, Fu-Jun, Wei, Hao, Liu, Zhen-Feng, Yin, Gui
• Format: Book Review Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 01.04.2011; WILEY‐VCH Verlag
• Subjects: Dysprosium; Luminescence; Metal-organic frameworks; Thermal properties; Ytterbium
• ISSN: 0044-2313; 1521-3749
• DOI: 10.1002/zaac.201000372

Two rare earth metal‐organic framework compounds [Ybsip(H2O)5]·3H2O (1) and [Dysip(H2O)4] (2) (NaH2sip: 5‐sulfoisophthalic acid sodium salt) were synthesized hydrothermally, and characterized by single‐crystal X‐ray diffraction, elemental analysis, and FT‐IR spectroscopy. In complex 1, each YbIII atom is nine‐coordinate with a distorted monocapped tetragonal prismatic arrangement. Two carboxylate groups of each sip3– molecule adopt the same μ1‐η1:η1 chelating coordination model connecting two YbIII atoms. The oxygen atoms of the sulfonate group do not participate in coordination with YbIII. The whole sip3– molecule acts as a μ2 bridge to form an one‐dimensional (1D) chain structure. The 1D chains are linked by hydrogen bonding to generate two‐dimensional layers, and are further combined together to form a three‐dimensional structure. In complex 2, the DyIII atom is nine‐coordinate with a distorted monocapped tetragonal antiprismatic arrangement. In each sip3– anion, two carboxylate groups take the same μ1‐η1:η1 chelating coordination mode, only an oxygen atom of sulfonate group bond to DyIII ion. The whole ligand sip3– acts as a μ3 bridge linking three different DyIII ions to generate a wave‐like two‐dimensional network with (6,3) topological structure. The two‐dimensional networks are further linked by O–H···O hydrogen bonds to form a three‐dimensional structure. The thermal and luminescent properties of both complexes are investigated.