Assembly, crystal structure, and luminescent properties of three-dimensional (10, 3)-a netted rare earth coordination polymers

• 来源期刊: 中国科学B辑（英文版）
• 年，卷（期）: 2008,（7）
• 页码范围: 614-622
• 页数: 9页
• 语种: 英文
• DOI: 10.1007/s11426-008-0042-3

摘要

Solid complexes [REL(NO3)3]n with novel (10,3)-a type three-dimensional networks structure have been assembled using rare earth nitrates and an amide type semirigid tripodal bridging ligand, 1,3,5-tris {[(2'-benzylaminoformyl)phenoxyl]methyl}benzene (L), as building blocks. The complexes were crys-tsllized in the orthorhombic system with chiral space group P212121. The whole structure consists of an infinite array of trigonal RE(Ⅲ) ions bridged by tridentate Iigands, and a novel (10,3)-a net is formed, which is very uncommon in the rare earth complexes. At room temperature, the Sm(Ⅲ), Eu(Ⅲ), Tb(Ⅲ), Dy(Ⅲ) complexes all exhibited characteristic luminescence emissions of central metal ions under UV light excitation.