A LANTHANUM(III) COMPLEX OF A 6-NITROGEN DONOR MACROCYCLIC LIGAND WITH AROMATIC SIDE-CHAINS - SYNTHESIS, CRYSTAL-STRUCTURE AND SPECTRA

被引:5
作者
BENETOLLO, F
BOMBIERI, G
VALLARINO, LM
机构
[1] UNIV MILAN,IST CHIM FARMACEUT,VIALE ABRUZZI 42,I-20131 MILAN,ITALY
[2] CNR,IST CHIM & TECNOL INORGAN & MAT,I-35100 PADUA,ITALY
[3] VIRGINIA COMMONWEALTH UNIV,DEPT CHEM,RICHMOND,VA 23284
关键词
D O I
10.1016/S0277-5387(00)84734-8
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Yellow crystals of formula [La(CH3COO)(NCS)2(C26H18N6)] were synthesized by the condensation of 1,2-diaminobenzene and 2,6-pyridinedicarboxyaldehyde in the presence of lanthanum(III) acetate, followed by partial acetate-thiocyanate metathesis. The complex has been characterized by X-ray crystallography. The La(III) ion is 10-coordinate, being linked to the six nitrogen atoms of the macrocyclic ligand, to the nitrogen atoms of two isothiocyanates situated on opposite sides of the macrocycle and to a bidentate chelating acetate. The IR and NMR spectra (H-1 and C-13) of the complex were recorded and assigned.
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页码:573 / 578
页数:6
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