Coordination modes of pyridine-carboxylic acid derivatives in samarium (III) complexes

被引：37

作者：

Soares-Santos, Paula C. R. ^{[1
]}

Paz, Filipe A. Almeida

Ferreira, Rute A. Sa

Klinowski, Jacek

Carlos, Luis D.

Trindade, Tito

Nogueira, Helena I. S.

机构：

[1] Univ Aveiro, Dept Chem, CICECO, P-3810193 Aveiro, Portugal

[2] Univ Aveiro, Dept Phys, CICECO, P-3810193 Aveiro, Portugal

[3] Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England

来源：

POLYHEDRON | 2006年 / 25卷 / 12期

关键词：

lanthanide complexes; N; O ligands; coordination modes; crystal structures; luminescence;

D O I：

10.1016/j.poly.2006.03.002

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Samarium (III) complexes of picolinic acid (Hpic), 3-hydroxypicolinic acid (HpicOH) and 2-hydroxynicotinic acid (H(2)nicO) were prepared and characterised. The crystal structures of the samarium complexes K-2[Sm-2(PiC)(6)(mu-pic)(2)]center dot 7.5H(2)O (1), [Sm(picOH)(2-)(mu-HpicO)(H2O)]center dot 3H(2)O (2) and [Sm(HniCO)(2)(mu-HnicO)(H2O)center dot 5H(2)O (3) were determined by single-crystal X-ray diffraction studies. The coordination modes of the pyridine-carboxylic acids to Sm3+ centres have been investigated. These complexes showed room-temperature photoluminescence. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：2471 / 2482

页数：12

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