發(fā)布時(shí)間：2018-06-19 16:08

  本文選題：配合物 + 柔性雙苯并咪唑�。� 參考：《華北理工大學(xué)》2017年碩士論文

【摘要】：作為重要的有機(jī)無(wú)機(jī)雜化材料,配位聚合物因其多樣的結(jié)構(gòu)和優(yōu)良的理化性質(zhì)吸引著越來(lái)越多的科學(xué)家們的青睞。然而,受多種因素的影響尤其是金屬離子和有機(jī)配體的影響,配位聚合物在結(jié)構(gòu)上表現(xiàn)出很大的差異。因此,選擇適當(dāng)?shù)慕饘匐x子和有機(jī)配體對(duì)目標(biāo)產(chǎn)物的定向組裝十分關(guān)鍵。設(shè)計(jì)合成出五種柔性雙苯并咪唑配體,將其與不同芳香羧酸混合,在水熱條件下分別與鈷/鎳金屬鹽反應(yīng)得到十種結(jié)構(gòu)各異的配合物。通過(guò)元素分析、IR光譜、XRPD等測(cè)試手段對(duì)其結(jié)構(gòu)進(jìn)行了表征,并探究了配合物的熱重、固體漫反射和熒光性能以及作為催化劑在類Fenton反應(yīng)體系中催化降解甲基橙的活性。利用4,4'-二(苯并咪唑-1-亞甲基)聯(lián)苯(L1)和不同的羧酸混配,與Co(Ⅱ)離子反應(yīng)得到四個(gè)結(jié)構(gòu)相異的配位聚合物。配合物1和2都是一維鏈結(jié)構(gòu);配合物3和4分別為二維(4,4)和二維SP 2-periodic net(6,3)Ia網(wǎng)絡(luò)結(jié)構(gòu)。此外,配合物2和4分別通過(guò)氫鍵作用延伸為二維和三維超分子結(jié)構(gòu)。采用柔性雙苯并咪唑配體L2~L5和芳香羧酸混合,水熱條件下與Co(Ⅱ)/Ni(Ⅱ)離子反應(yīng)合成了六個(gè)未報(bào)道的金屬配位聚合物。配合物5為具有4-連接的二維htb結(jié)構(gòu)。配合物6、9和10均是二維(4,4)結(jié)構(gòu),其中6和10分別通過(guò)氫鍵作用擴(kuò)展為三維3,3,4T3和3,3,4T27超分子網(wǎng)絡(luò)。配合物7是二重互穿的金剛石三維框架。配合物8是一維管狀結(jié)構(gòu),通過(guò)氫鍵延展成二維超分子結(jié)構(gòu)。表征和性能測(cè)試表明,除了配合物10,1~9都表現(xiàn)出較高的熱穩(wěn)定性。配合物1~4顯示出良好的固體漫反射性質(zhì),而配合物5,6和8則呈現(xiàn)出較強(qiáng)的熒光性能。配合物2,3,4,7和10在降解甲基橙的類Fenton體系中表現(xiàn)出較高的催化活性,可作為潛在的催化材料。
[Abstract]:As an important organic and inorganic hybrid material, coordination polymers attract more and more scientists because of their diverse structures and excellent physicochemical properties. However, due to the influence of many factors, especially metal ions and organic ligands, the structure of coordination polymers is very different. Therefore, the selection of appropriate metal ions and organic ligands is critical to the targeted assembly of the target products. Five flexible bis (benzimidazole) ligands were designed and synthesized, which were mixed with different aromatic carboxylic acids and reacted with cobalt / nickel metal salts under hydrothermal conditions to obtain ten complexes with different structures. The structure of the complex was characterized by elemental analysis, IR spectra and XRPD, and the thermogravimetric, diffuse reflectance and fluorescence properties of the complexes and the catalytic activity of the complexes as catalysts for the degradation of methyl orange in Fenton-like reaction system were investigated. Four coordination polymers with different structures were obtained by the reaction of 4 ~ (4) C ~ (4 +) -bis (benzimidazole-1-methylene-biphenyl) L _ (1) with different carboxylic acids with Co (鈪，

本文編號(hào)：2040441