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Syntheses and Crystal Structures of Five Sr^(Ⅱ)-Ln^(Ⅲ)(Ln=Nd,Pr,Er) Heterometallic Coordination Polymers

Syntheses and Crystal Structures of Five Sr^(Ⅱ)-Ln^(Ⅲ)(Ln=Nd,Pr,Er) Heterometallic Coordination Polymers
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摘要 Five novel SrⅡ-LnⅢ heterometallic coordination polymers based on pyridine-2,6- dicarboxylic acid （H2pda） and imidazole （im）, namely, [LnSr（pda）3（H2O）5]-Him·C2H5OH·3H2O （Ln = Nd （1）; Pr （2））, [Ln2Sr（pda）6（H2O）5]-4Him·C2H5OH·5H2O （Ln = Nd （3）; Pr （4））, and [ErSr（pda）3（H2O）4].Him-3.5H2O （5）, have been prepared and structurally characterized. X-ray crystallographic analyses revealed that these complexes display three varieties of l-D chain structures. Several types of hydrogen bonding interactions are found for 1-5, which connect the 1 -D chain structures to form 2-D suoramolecular networks. Five novel SrⅡ-LnⅢ heterometallic coordination polymers based on pyridine-2,6- dicarboxylic acid （H2pda） and imidazole （im）, namely, [LnSr（pda）3（H2O）5]-Him·C2H5OH·3H2O （Ln = Nd （1）; Pr （2））, [Ln2Sr（pda）6（H2O）5]-4Him·C2H5OH·5H2O （Ln = Nd （3）; Pr （4））, and [ErSr（pda）3（H2O）4].Him-3.5H2O （5）, have been prepared and structurally characterized. X-ray crystallographic analyses revealed that these complexes display three varieties of l-D chain structures. Several types of hydrogen bonding interactions are found for 1-5, which connect the 1 -D chain structures to form 2-D suoramolecular networks.
作者 CAO Yan-Yuan CHEN Yan-Mei LIU Wei LI Ya-Hong
机构地区 Key Laboratory of Organic Synthesis of Jiangsu Province
出处 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2013年第12期1859-1867,共9页 结构化学（英文）
基金 Supported by Hundreds of Talents Program(2005012)of CAS NNSFC(21272167 and 21201127) Priority Academic Program Development of Jiangsu Higher Education Institution and Graduate Education Innovation Project in Jiangsu Province(CXZZ12_0808)
关键词 heterometallic coordination polymers STRONTIUM LANTHANIDE crystal structure heterometallic coordination polymers, strontium, lanthanide, crystal structure
分类号 O634 [理学—高分子化学]
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参考文献37

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Chinese Journal of Structural Chemistry
2013年 第12期

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