Synthesis and characterization of lanthanide complexes containing a bulky tridentate [N,N,O] Schiff base ligand

被引：2

作者：

李邦玉 ^{[1
]}

姚英明 ^{[1
]}

王耀荣 ^{[2
]}

张勇 ^{[1
]}

沈琪 ^{[1
]}

机构：

[1] Key Laboratory of Organic Synthesis of Jiangsu Province, Department of Chemistry and Chemical Engineering, Suzhou University

[2] College of Material Engineering, Suzhou University

来源：

Journal of Rare Earths | 2008年 / 04期

关键词：

Schiff base lanthanide complex; crystal structure; synthesis; rare earths;

D O I：

暂无

中图分类号：

TG146.45 [];

学科分类号：

080502 ;

摘要：

The lanthanide complexes containing a bulky tridentate [N,N,O] Schiff base ligand 3,5-But2-2-(OH)C6H2CH=N-8-C9H6N (HL) were synthesized and characterized. The reaction of anhydrous LnCl3 with NaL formed in situ in a 1:1 molar ratio in THF at room temperature afforded the lanthanide Schiff base dichloride complexes LnLCl2(DME) (Ln=Eu (1); Sm (2)). Complexes 1 and 2 can be used as precursors for the synthesis of the lanthanide cyclopentadienyl Schiff base derivatives. The reactions of complexes 1 and 2 with one equiv of NaCH3C5H4 in THF provided the desired products LnL(CH3C5H4)Cl(THF)?THF (Ln=Eu (3); Sm (4)) in good isolated yields. These com- plexes were characterized by elemental analysis, IR spectra, and X-ray structural determination, in the case of complexes 3 and 4. The crystal data of complex 3 are monoclinic, P21/c space group, a=1.3370(2) nm, b=1.5190(2) nm, c=1.8910(3) nm, β=109.846(4)°, V=3.6125(8) nm3, Z=4, Dc=1.416 mg/m3, μ=1.847 mm–1, F(000)=1584, R=0.0707, wR=0.1350. The crystal data of complex 4 are monoclinic, P21/c space group, a=1.3383(1) nm, b=1.5210(2) nm, c=1.8960(2) nm, β =109.878(3)°, V=3.6293(7) nm3, Z=4, Dc=1.407 mg/m3, μ=1.728 mm-1, F(000)=1580, R=0.0670, wR=0.1385.

引用

页码：469 / 472

页数：4

共 4 条

[1]

Synthesis and Characterization of Monomeric Salicylaldiminato Lanthanide Complexes and Their Catalytic Behavior for Polymerization of ε-Caprolactone[J]. 喻龙宝,姚英明,沈琪,张婧,吴立新,叶玲.Chinese Journal of Chemistry. 2003(04)

[2] Synthesis and X-ray crystal structure of monomeric lanthanocene aryloxide complexes with a tridentate Schiff base ligand [J].

Yousaf, M ;

Liu, QC ;

Huang, JL ;

Qian, YL ;

Chan, ASC .

INORGANIC CHEMISTRY COMMUNICATIONS, 2000, 3 (03) :105-106

[3]

Synthesis of the first mono（cyclopentadienyl）lanthanide Schiff base complex bearing C 2 -symmetric tetradentate ligand: crystal structure of[（ η 5 -C 5 H 5 ）Yb（ μ -OC 20 H 20 N 2 O）] 2 （ μ -THF）（THF）[J] . Qiancai Liu,Mengxian Ding.Journal of Organometallic Chemistry . 1998 (1)

[4]

Synthesis and X-ray crystal structure of[（ η 5 -C 5 H 5 ）Sm（ μ -OC 20 H 20 N 2 O）] 2 （ μ -THF）（THF） 2 : Mono（cyclopentadienyl）lanthanide complex bearing a C 2 -symmetric tetradentate Schiff-base ligand[J] . Qiancai Liu,Mengxian Ding,Yonghua Lin,Yan Xing.Polyhedron . 1998 (4)

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