Synthesis and crystal structure of catena-poly[[bis­(nitrato-κ2O,O′)strontium(II)]-di-μ-l-histidine-κ3O,O′:O;κ2O:O′]

IF 0.6 Q4 CRYSTALLOGRAPHY
Sathish Marimuthu , Thangavelu Balakrishnan , M. Judith Percino , Perumal Venkatesan
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引用次数: 0

Abstract

The title mono-periodic coordination polymer features ten-coordinate Sr2+ ions, zwitterionic l-histidine ligands and nitrate anions.
The title mono-periodic coordination polymer, [Sr(NO3)2(C6H9N3O2)2]n, was synthesized from l-histidine and strontium nitrate. Crystallizing in the monoclinic space group C2, the structure features an Sr2+ cation (site symmetry 2) coordinated by ten oxygen atoms from zwitterionic l-histidine ligands and nitrate anions, forming a distorted deca­hedral geometry with Sr—O bond lengths ranging from 2.645 (4) to 2.863 (4) Å. The bridging l-histidine mol­ecules generate a polymeric chain extending along the [010] direction. The structure is consolidated by N—H⋯O, N—H⋯N and weak C—H⋯O hydrogen bonds, creating layers lying parallel to the bc plane.

Abstract Image

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Abstract Image

链聚[[双-(硝基-κ 2o,O‘)锶(II)]-di-μ-l-组氨酸-κ 2o,O’:O;κ 2o:O']的合成与晶体结构
以l-组氨酸和硝酸锶为原料合成了标题单周期配位聚合物[Sr(NO3)2(C6H9N3O2)2] n。该结构在单斜空间群C2中结晶,具有一个Sr2+阳离子(位对称2),由两性离子l-组氨酸配体和硝酸盐阴离子的十个氧原子配位,形成一个扭曲的十面体几何结构,Sr-O键长度在2.645(4)至2.863 (4)Å之间。桥接的l-组氨酸分子产生沿[010]方向延伸的聚合链。该结构由N- h⋯O、N- h⋯N和弱的C-H⋯O氢键巩固,形成平行于bc平面的层。
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来源期刊
CiteScore
1.90
自引率
0.00%
发文量
351
审稿时长
3 weeks
期刊介绍: Acta Crystallographica Section E: Crystallographic Communications is the IUCr''s open-access structural communications journal. It provides a fast, simple and easily accessible publication mechanism for crystal structure determinations of inorganic, metal-organic and organic compounds. The electronic submission, validation, refereeing and publication facilities of the journal ensure rapid and high-quality publication of fully validated structures. The primary article category is Research Communications; these are peer-reviewed articles describing one or more structure determinations with appropriate discussion of the science.
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