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	Ternary oxalate-bridged lanthanide complexes from hydrothermal reactions
	Shufeng Si ; Chunhui Li ; Ruji Wang ; Yadong Li
	2010-05-06 ; 2010-05-06
关键词	Experimental/ crystal structure crystallisation europium compounds fluorescence gadolinium compounds organic compounds space groups spectral line intensity thermal analysis/ ternary oxalate-bridged lanthanide complexes hydrothermal reactions oxalates 1,3-benzenedicarboxylate Eu complex Gd complex 5-nitro-1,3-benzenedicarboxylate hydrothermal synthesis crystallization monoclinic space group isostructural compound triclinic space group thermogravimetric analyses structural stability solid-state luminescent spectroscopy asymmetric construction crystal structure TGA fluorescence/ A6165 Crystal structure of specific organic compounds A6150E Crystal symmetry models and space groups, and crystalline systems and classes A7855K Photoluminescence in organic materials
中文摘要	Four ternary lanthanide compounds: {[Gd/sub 2/(OX)(BC)/sub 2 /(H/sub 2/O)/sub 4/] middot 2H/sub 2/O} 1 (OX=oxalate, BC=1,3-benzenedicarboxylate); {[Ln/sub 2/ (OX)(NBC) /sub 2/(H/sub 2/O)/sub 6/] middot 4H/sub 2/O} (Ln=Eu 2, Gd 3) and {[Tm/sub 2/(OX)(NBC)/sub 2/(H/sub 2/O)/sub 4 /] middot 2H/sub 2/O} 4 (NBC=5-nitro-1,3-benzenedicarboxylate) have been hydrothermally synthesized and structurally characterized. Compound 1 and 4 crystallizes in the monoclinic space group P2(1)c with a=13.483(5), b=12.814(4), c=7.076(2) A , beta =104.188(5) degrees , U=1185.3(7) A /sup 3/ for 1, a=11.211(4), b=12.851(4), c=9.689(3) A , beta =111.726(5) degrees , U=1296.8(2) A /sup 3 / for 4. Compound 2, and 3 are isostructural and crystallize in the triclinic space group P-1 with a=7.451(2), b=9.234(3), c=11.585(3) A , alpha =73.989(6), beta =71.656(6), gamma =79.707(6) degrees U=723.54(3) A /sup 3/ for 2, and a=7.495, b=9.293(4), c=11.649 A , alpha =73.820, beta =71.618, gamma =79.844 degrees , U=736.0(11) A /sup 3/ for 3. Thermogravimetric analyses on compound 2, 3 and 4 show their high structural stability as far as to 370 degrees C. For compound 2, the intensity of the /sup 5/D/sub 0/-/sup 7/F /sub 2/ transition is stronger than that of the /sup 5/D/sub 0 /-/sup 7/F/sub 1/ transition. This solid-state luminescent spectroscopy is consistent with the asymmetric construction.
语种	英语 ; 英语
出版者	Elsevier ; Netherlands
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/12183]
专题	清华大学
推荐引用方式 GB/T 7714	Shufeng Si,Chunhui Li,Ruji Wang,et al. Ternary oxalate-bridged lanthanide complexes from hydrothermal reactions[J],2010, 2010.
APA	Shufeng Si,Chunhui Li,Ruji Wang,&Yadong Li.(2010).Ternary oxalate-bridged lanthanide complexes from hydrothermal reactions..
MLA	Shufeng Si,et al."Ternary oxalate-bridged lanthanide complexes from hydrothermal reactions".(2010).

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