| 一维链状吡啶酮钙配位聚合物[Ca(μ-p-HPO)2(NO3)2]n的合成、晶体结构及热稳定性研究 |
| Synthesis, Sructure and Thermal Stability of One-dimensional Calcium Coordination Polymer [Ca(μ-p-HPO)2(NO3)2]n Constructed by p-pyridone Ligand |
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| 摘要: |
| 关键词: 钙配位聚合物 吡啶酮 晶体结构 |
| 基金项目: |
| Abstract: A novel one-dimensional coordination polymer, [Ca(μ-p-HPO)2(NO3)2]n, (p-HPO=p-pyridone) was synthesized and characterized by the element analysis, IR, TG and X-ray single crystal diffraction. It crystallizes in the monoclinic space group C2/c with unit cell parameters: a=1.992 1(4) nm, b=0.374 96(7) nm, c=1.930 3(4) nm, β=109.21(3)°. V=1.361 6(5) nm3, Z=4, R=0.034 9, wR=0.084 4. The Ca atom is eight-coordinated by four O atoms from different p-pyridone ligands and four O atoms from two chelating nitrate anions, and displays a distorted square pyramidal coordination geometry. Each p-pyridone ligand bridges two adjacent Ca atoms, forming a infinite chain along the b direction. The Ca…Ca distance is 0.374 96(7) nm. A layer structure is further constructed by intermolecular hydrogen bonds and π-π interactions. The result of TG analysis shows that the title complex is stable under 185 ℃. CCDC: 241576. |
| Keywords: calcium coordination polymer pyridone crystal structure |
| 投稿时间：2004-06-20 修订日期：2004-10-14 |
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| 高山,卢振中,赵辉,霍丽华,赵经贵.一维链状吡啶酮钙配位聚合物[Ca(μ-p-HPO)2(NO3)2]n的合成、晶体结构及热稳定性研究[J].无机化学学报,2005,21(2):253-256. |
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