CAJ | 학술논문

利用2,2'-联喹啉-4,4'-二羧酸钠(Na2bqdc),2,2-联吡啶与硫酸钴在溶剂热作用下合成了1个一维配位聚合物[Co(bqdc)(bipy)(H20)]n(1).通过元素分析、粉末衍射、红外、紫外光谱对配合物进行了表征,利用X射线单晶衍射仪测定了其晶体结构.中心CoⅡ离子分别与2个来自2,2-联喹啉-4,4-二羧酸钠配体的双齿羧基氧原子和1个来自配体的单齿羧基氧原子、辅助配体2,2-联吡啶上的2个N原子和1个水分子的氧原子配位,形成了1个稍微扭曲的八面体配位构型.紫外光谱实验表明,相对2,2'-联喹啉-4,4'-二羧酸钠配体,配合物的紫外光谱发生了少量的蓝移.对该配合物多晶样品的差热分析(TGA)表明该化合物在217℃后开始分解.
이용2,2'-련규람-4,4'-이최산납(Na2bqdc),2,2-련필정여류산고재용제열작용하합성료1개일유배위취합물[Co(bqdc)(bipy)(H20)]n(1).통과원소분석、분말연사、홍외、자외광보대배합물진행료표정,이용X사선단정연사의측정료기정체결구.중심CoⅡ리자분별여2개래자2,2-련규람-4,4-이최산납배체적쌍치최기양원자화1개래자배체적단치최기양원자、보조배체2,2-련필정상적2개N원자화1개수분자적양원자배위,형성료1개초미뉴곡적팔면체배위구형.자외광보실험표명,상대2,2'-련규람-4,4'-이최산납배체,배합물적자외광보발생료소량적람이.대해배합물다정양품적차열분석(TGA)표명해화합물재217℃후개시분해.
Utilizing 2,2'-biquinoline-4,4-dicarboxylate ligand (Na2bqdc) and CoSO4 with 2,2'-bipyridine as auxiliary ligand under hydrothermal condition produces a novel coordination polymer [Co(bqdc)(bipy)(H2O)]n (1).The coordination geometry around central metal Co Ⅱ ion can be best described as a distorted octahedron which constructed by one bidentate chelating carboxylic group,one monodentate carboxylic group,two nitrogen atoms from the chelating bipyridine ligand and one water molecules.Crystal data for 1,P21/c,a=1.367 1(15),b=0.999 6(11),c=1.9948(16) nm,β=113.555(6)°,V=2.498 9(4) nm3,Z=4,R1=0.038 8,wR2=0.085 1.The UV absorption spectrum of title compound show a small blue shifts corresponding to the free ligand probably be due to the formation of coordination polymer and supramoleculer hydrogen-bonding interactions thus increasing the rigidity of 1.Thermogravimetric analysis (TGA) of the polycrystalline sample shows that the compound is stable up to 217 ℃.CCDC:847230.