论文部分内容阅读
合成了铜(Ⅱ)与苯基羧酸根[PCA-=苯甲酸根(Bz-),2-苯乙酸根(PAc-),3-苯丙酸根(PPr-),4-苯丁酸根[PBu-)]和2,2′-联吡啶衍生物(dpx:2,2′-联吡啶胺dpa、2,2′-联吡啶酮dpk、2,2′-联吡啶甲烷dpm)三大系列12种新的三元配合物。用元素分析、摩尔电导、红外光谱、1H核磁共振、差热分析等实验方法表征了它们的组成和性质。确定该系列配合物化学组成为Cu(PCA)2(dpa)、Cu(PCA)2(dpm)、Cu(PCA)2(dpk)·nH2O(n=2-4)。它们具有相似的组成和配位方式。它们的可能结构为:二个PCA-与Cu(Ⅱ)单齿配位,一个dpx与Cu(Ⅱ)N,N二齿螯合配位。dpk的羰基在金属离子Cu2+的存在下发生水化作用成dpk·H2O。用1HNMR法研究了Cu(Bz)2(dpx)·nH2O和Cu(PAc)2(dpx)·nH2O二个体系其分子内或分子间可能存在的非共价键作用。
The synthesis of copper (Ⅱ) with phenylcarboxylates [PCA- = Bz-, PAc-, 3-phenylpropionate (PPr-) PBu-)] and 2,2’-bipyridine derivatives (dpx: 2,2’-bipyridylamine dpa, 2,2’-bipyridyl dpk, 2,2’-bipyridyl methane dpm) Twelve new ternary complexes. Their composition and properties were characterized by elemental analysis, molar conductance, infrared spectra, 1H nuclear magnetic resonance and differential thermal analysis. The chemical composition of the complex was determined as Cu (PCA) 2 (dpa), Cu (PCA) 2 (dpm) and Cu (PCA) 2 (dpk) · nH2O (n = 2-4). They have similar composition and coordination. Their possible structures are: two PCA- and Cu (Ⅱ) monodentate coordination, a dpx and Cu (Ⅱ) N, N bidentate chelate coordination. dpk carbonyl in the presence of metal ions in the presence of Cu2 + hydration dpk · H2O. The possible non-covalent interactions in Cu (Bz) 2 (dpx) · nH2O and Cu (PAc) 2 (dpx) · nH2O systems were investigated by 1H NMR.