{"title":"Synthesis and crystal structure of catena-poly[[bis(nitrato-κ2O,O′)strontium(II)]-di-μ-l-histidine-κ3O,O′:O;κ2O:O′]","authors":"Sathish Marimuthu , Thangavelu Balakrishnan , M. Judith Percino , Perumal Venkatesan","doi":"10.1107/S2056989025004694","DOIUrl":null,"url":null,"abstract":"<div><div>The title mono-periodic coordination polymer features ten-coordinate Sr<sup>2+</sup> ions, zwitterionic <span>l</span>-histidine ligands and nitrate anions.</div></div><div><div>The title mono-periodic coordination polymer, [Sr(NO<sub>3</sub>)<sub>2</sub>(C<sub>6</sub>H<sub>9</sub>N<sub>3</sub>O<sub>2</sub>)<sub>2</sub>]<sub><em>n</em></sub>, was synthesized from <span>l</span>-histidine and strontium nitrate. Crystallizing in the monoclinic space group <em>C</em>2, the structure features an Sr<sup>2+</sup> cation (site symmetry 2) coordinated by ten oxygen atoms from zwitterionic <span>l</span>-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 <span>l</span>-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 <em>bc</em> plane.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"81 7","pages":"Pages 591-594"},"PeriodicalIF":0.6000,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Crystallographica Section E: Crystallographic Communications","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/org/science/article/pii/S2056989025001276","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CRYSTALLOGRAPHY","Score":null,"Total":0}
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.
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.