...
首页> 外文期刊>Crystallography reports >Crystal Structure of Calcium trans-N-(Nitrilotriacetato) (pyridine-2-carboxylato)cobaltate(II) Hexahydrate, Ca[Co(Nta)(Pic)]_2·6H_2O
【24h】

Crystal Structure of Calcium trans-N-(Nitrilotriacetato) (pyridine-2-carboxylato)cobaltate(II) Hexahydrate, Ca[Co(Nta)(Pic)]_2·6H_2O

机译:六水合Ca [Co(Nta)(Pic)] _ 2·6H_2O的反式-N-(硝基三乙酰基)(吡啶-2-羧基)钴酸钙(II)的晶体结构

获取原文
获取原文并翻译 | 示例
           

摘要

Crystals of Ca[Co~(III)(Nta)(Pic)]_2·6H_2O(I) (where Nta~(3-) and Pic~- are the nitrilotriacetate and picolinate ions, respectively) are prepared and characterized by the X-ray diffraction technique. Crystals I are monoclinic, a = 18.599(4) A, b = 12.556(3) A, c = 14.042(3) A, β = 102.90(3)°, V = 3196(1) A~3, Z = 4, space group P2_1/c, R1 = 0.0278, wR2 = 0.0716, and Goof = 1.054 for 4982 reflections with I > 2σ(I), Structure I is built of the {Ca(H_2O)_4[Co(Nta)(Pic)]_2}_(1∞) polymer ribbons and molecules of crystallization water. One of the two symmetrically independent anionic complexes (B) is included in the chain and alternates with cationic units, whereas the other anionic complex (A) forms a branch of this chain. The cationic and anionic units are interlinked via the interactions of the Ca~(2+) cations with the carbonyl atoms of the main (Nta~(3-)) and additional (Pic~-) ligands. The octahedral environment of the Co(III) atoms consists of donor atoms of the Nta~(3-) (N + #O) and Pic~- (N + O) ligands. The coordination polyhedron of the Ca atom (pentagonal bipyramid) includes two carbonyl O atoms of two Nta~(3-) ligands, one O_(Pic) atom, and four O_w atoms of water molecules.
机译:制备Ca [Co〜(III)(Nta)(Pic)] _ 2·6H_2O(I)的晶体(其中Nta〜(3-)和Pic〜-分别是次氮基三乙酸根和吡啶甲酸根离子)并通过X表征射线衍射技术。晶体I是单斜晶体,a = 18.599(4)A,b = 12.556(3)A,c = 14.042(3)A,β= 102.90(3)°,V = 3196(1)A〜3,Z = 4 ,空间组P2_1 / c,R1 = 0.0278,wR2 = 0.0716以及Goof = 1.054(对于I>2σ(I)的4982个反射),结构I由{Ca(H_2O)_4 [Co(Nta)(Pic) ] _2} _(1∞)聚合物带和结晶水分子。链中包括两个对称独立的阴离子络合物(B)中的一个,并与阳离子单元交替,而另一个阴离子络合物(A)形成该链的分支。阳离子和阴离子单元通过Ca〜(2+)阳离子与主要(Nta〜(3-))和其他(Pic〜-)配体的羰基原子的相互作用相互连接。 Co(III)原子的八面体环境由Nta〜(3-)(N + #O)和Pic〜-(N + O)配体的供体原子组成。 Ca原子的配位多面体(五角双锥体)包括两个Nta〜(3-)配体的羰基O原子,一个O_(Pic)原子和四个O_w原子的水分子。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号