论文部分内容阅读
以Hpda[3-(3-吡啶基)乙烯酸]为配体、AgNO_3为金属源,常温下合成了一个新颖的Ag配合物[Ag_2(pda)_2(H_2O)_3]n.通过往AgNO_3和Hpda的悬浊液中滴加氨水,室温下随着氨水的挥发澄清液中析出无色的晶体,所得产物经红外、XRD及热重表征.该分子中含有2个Ag中心,每个Ag中心通过pda配体及Ag—Ag键相连形成花生形状的一维链,该链进一步被Ag—Ag键连接形成双链结构.游离的水分子之间相互作用形成二维层状水簇,呈有趣的L4(4)12(8)形状.水分子与pda配体中的羧基氧通过氢键相互作用,将一维双链延伸成三维网络结构.
A new Ag complex [Ag_2 (pda) _2 (H_2O) _3] n was synthesized at room temperature using Hpda [3- (3-pyridyl) ethylene] as ligand and AgNO_3 as metal source. Hpda suspension was added dropwise with ammonia at room temperature with ammonia volatilization clear liquid precipitated colorless crystals, the resulting product by infrared, XRD and thermogravimetric characterization of the molecule contains two Ag centers, each Ag center Through the pda ligand and Ag-Ag bond to form a peanut-shaped one-dimensional chain, the chain is further Ag-Ag bond to form a double-stranded structure.Free water molecules interact to form a two-dimensional layered water clusters, was interesting Of the L4 (4) 12 (8) shape.The water molecules interact with the carboxyl oxygen in the pda ligand through hydrogen bonding to extend the one-dimensional double-strand network into a three-dimensional network structure.