Praseodymium complexes of 2,2′-bipyridine;: the crystal and molecular structures of Pr(bipy)3(NCS)3, Pr(bipy)2(NO3)3, Pr(bipy)2Cl3(OH2)•EtOH and Pr(bipy)(S2CNEt2)3

被引:33
作者
Bower, JF
Cotton, SA [1 ]
Fawcett, J
Hughes, RS
Russell, DR
机构
[1] Uppingham Sch, Uppingham LE15 9QE, Rutland, England
[2] Univ Leicester, Dept Chem, Leicester LE1 7RH, Leics, England
关键词
praseodymium complexes; lanthanide; 2,2 '-Bipyridine; thiocyanate; chloride; nitrate; dithiocarbamate; crystal structures;
D O I
10.1016/S0277-5387(02)01359-1
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The structures of Pr(biPy)(3)(NCS)(3), Pr(bipy)(2)(NO3)(3), Pr(bipy)(2)Cl-3(OH2).EtOH and Pr(bipy)(S2CNEt2)(3) are reported. Pr(biPY)(3)(NCS)(3) has a monomeric structure with three N-bonded thiocyanates and three bidentate bipyridyl ligands, giving nine-coordinate praseodymium. Praseodymium is eight-coordinate in Pr(bipy)(2)Cl-3(OH2).EtOH and in Pr(bipy)(S2CNEt2)(3) whilst Pr(bipy)(2)(NO3)(3) is isostructural with the La, Nd and Lu analogues, having three bidentate nitrates and two bipyridyl ligands, affording 10-coordinate praseodymium. Factors affecting bond lengths in the compounds are discussed. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:347 / 354
页数:8
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