Synthesis, Crystal Structure, and Magnetic Properties of a Co Metal-organic Framework with Mixed Dic

来源 :结构化学 | 被引量 : 0次 | 上传用户:anglewang
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
One new mixed-ligand coordination polymer,namely[Co_2(btc)(bpdc)_(0.5)(py)_3]_n(1),was hydrothermally synthesized using biphenyl-2,4,4’-tricarboxylic acid(H_3btc) as a main building block,along with two auxiliary ligands(H_2bpdc = 2,2’-bipyridine-5,5’-dicarboxylic acid and py =pyridine).The product 1 was characterized by IR spectroscopy,elemental,thermogravimetric,and single-crystal X-ray diffraction analyses.Single-crystal X-ray diffraction studies show that compound 1 possesses an intricate 3D metal-organic framework based on tetracobalt(Ⅱ) units.Magnetic susceptibility measurement indicates that compound 1 shows an antiferromagnetic coupling between the Co(Ⅱ) ions. One new mixed-ligand coordination polymer, namely [Co_2 (btc) (bpdc) _ (0.5) (py) _3] _n (1), was hydrothermally synthesized using biphenyl-2,4,4’-tricarboxylic acid (H_3btc) as a main building block along with two auxiliary ligands (H_2bpdc = 2,2’-bipyridine-5,5’-dicarboxylic acid and py = pyridine). The product 1 was characterized by IR spectroscopy, elemental, thermogravimetric, and single-crystal X-ray diffraction analyzes. Single-crystal X-ray diffraction studies show that compound 1 possesses an intricate 3D metal-organic framework based on tetracobalt (II) units. Magnetic susceptibility measurement indicates that compound 1 shows an antiferromagnetic coupling between the Co ) ions.
其他文献
写作和口语一直被看成是语言的输出能力,在语言习得方面得到了广大语言学家地重视。斯温(1985)认为,尽管可理解性输出其对语言学习有正面效果,但还不足以使学生完全掌握第二语言
剪纸是中国民间艺术,它被列为世界非物质文化遗产。作为中国传统文化的传递者——中学生,更应该担负起重任。中学生对于剪纸文化的继承、创新和发展是历史赋予中学生的责任,
期刊
自二十世纪八十年代以来,随着任务型教学的兴起,针对任务的研究便成为了二语习得研究与教学研究的重点领域,许多针对任务型学习、任务型教学以及任务型测试的文章和著作也大
本文通过对荣华二采区10
教师话语指在课堂上经过教师调节后的语言,因此教师话语中所包含的调节策略值得研究者的关注和研究。本文通过对英语课堂中教师话语的分析,旨在描述和探讨在教学过程当中教师
期刊
开栏的话 从本期开始,本刊新设“老同志访谈录”栏目。从领导岗位上退下来的老同志,是党史、国史中许多重大事件的亲历者、重要决策的参与者。他们的回忆和著述,是党的文献