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(H_2L^1)及缩硫代卡巴肼(H_2L^2)反应,合成了2个二丁基锡双核配合物[(Bu_2Sn)_2L]·MeOH,对其进行了元素分析、IR、~1H和^(13)C 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。
The dibutyltin(Ⅳ) binuclear complexes[(Bu2Sn)2L]MeOH have been synthesized by the microwave methanol solvothermal reactions of n-Bu2SnO and bis(3,5-di-t-butylsalicylaldehyde) carbohydrazide (H2L1) or hiocarbohydrazide(H2L2). The structures were characterized by elemental analysis, IR, 1H NMR, 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-coordination in a distorted trigonal bipyramidal structure. The Sn2 are rendered six-coordination in a distorted tetragonal-octahedral geometry. In addition, hydrogen bonding (O-H…N) intermolecular interactions link these molecules into one-dimensional chain in the complexes. And two complexes exhibit herbicidal activity for Portulaca oleracea, Amaranthus spinosus and Semen cassiae.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2017年第8期1397-1402,共6页
Chinese Journal of Inorganic Chemistry
基金
湖南省高校创新平台开放基金(No.16K011
14K014)
湖南省自然科学基金(No.13JJ3112)资助项目
关键词
二丁基锡双核配合物
合成
晶体结构
除草活性
dibutyltin binuclear complexes synthesis crystal structure herbicidal activity