Synthesis and unusual crystal structure of the Eu(III) complex with 1-(1,5-dimethyl-1H-pyrazol-4-yl)-4,4,4-trifluorobutane-1,3-dione

被引：5
|
作者：
Taidakov, I. V. [1 ,2 ]
Lobanov, A. N. [2 ]
Vitukhnovskii, A. G. [2 ]
Starikova, Z. A. [3 ]
机构：
[1] Peoples Friendship Univ, Moscow 117198, Russia
[2] Russian Acad Sci, Lebedev Phys Inst, Moscow 117924, Russia
[3] Russian Acad Sci, Nesmeyanov Inst Organoelement Cpds, Moscow 117813, Russia
来源：
RUSSIAN JOURNAL OF COORDINATION CHEMISTRY | 2013年 / 39卷 / 06期
基金：
俄罗斯基础研究基金会;
关键词：
10;
D O I：
10.1134/S1070328413050072
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The reaction of Eu(NO3)(3) center dot 6H(2)O with 1-(1,5-dimethyl-1H-pyrazol-4-yl)-4,4,4-trifluorobutane-1,3-dione (HL) in the presence of NaOH in aqueous ethanol gave neutral complex [EuL3(H2O)] (I). The unstable adduct [EuL3(H2O)] center dot 1.3MeCN (Ia) was obtained from an acetonitrile solution and studied by X-ray diffraction. The crystals of Ia at 100 K are monoclinic, a = 17.551(3) , b = 11.532(2) , c = 20.371(3) , beta = 110.886(3)A degrees, V = 3852(1) (3), space group P2(1)/c, Z = 4, R = 0.0505. The molecules are connected into chains by strong interactions between the europium atom of one molecule and the pyrazole N(2) atom of another molecule and additionally stabilized by strong hydrogen bonds O(1w)-H(1w1)aEuro broken vertical bar N(4)*. The chains are combined into layers by the hydrogen bonds (1w)-H(2w1)aEuro broken vertical bar N(2)*.
引用
收藏
页码：437 / 441
页数：5
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