| 双(3,5-二叔丁基水杨醛)缩卡巴肼二丁基锡配合物的微波溶剂热合成、结构及除草活性研究* |
| Microwave-Solvent Thermal Syntheses, Crystal Struture and Herbicidal Activity of Bis(3,5-Di-t-Butylsalicylaldehyde) Carbohydrazide Dibutyltin Complexes |
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| 摘要: 微波甲醇溶剂热中,二丁基氧化锡与双(3,5-二叔丁基水杨醛)缩卡巴肼(H2L1)及缩硫代卡巴肼(H2L2)反应,合成了两个二丁基锡双核配合物(Bu2Sn)2L.MeOH,经元素分析、IR、1H 和 13C-NMR结构表征,X-射线晶体衍射结构表明：配合物1和2具有类似结构的双锡核配合物,Sn1和Sn2分别与配基原子构成畸形三角双锥和畸形八面体构型。相邻分子间通过O-H…N氢键作用,形成一维无限链状结构。配合物1和2对马齿苋、刺苋以及决明子等杂草的根和茎的生长具有明显的抑制作用。 |
| 关键词: 二丁基锡双核配合物 合成 晶体结构 除草活性 |
| 基金项目: 省自然科学基金;高校基金 |
| Abstract: In the microwave methanol solvent, The dibutyltin(IV) binuclear complexes (Bu2Sn)2L.MeOH have been synthesized by the reactions of n-Bu2SnO and bis(3,5-di-t-butylsalicylaldehyde) and carbohydrazide or hiocarbohydrazide. The structures were characterized by elemental analysis, IR, 1H, 13C NMR and X-ray crystal diffraction. The crystal structure shows that the complexes 1 and 2 have a similar structure. The Sn1 are rendered five-coordina-tion in a distorted tigonal bipyram idalstructure. The Sn2 are rendered six-coordina-tion in a distortedStetragonal-octahedral geometry. In addition, hydrogen bonding (O-H…N) intermolecular interactions link these molecules into one-dimensional chain in complexes. And two complexes exhibited herbicidal activity for Portulaca oleracea, Amaranthus spinosus and Semen cassiae. |
| Keywords: dibutyltin binuclear complexes synthesis crystal Struture herbicidal Activity |
| 投稿时间：2017-02-23 修订日期：2017-06-27 |
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