Gonciarz Agnieszka, Żuber Marian, Zwoździak Jerzy
Department for Security Studies The General Tadeusz Kosciuszko Military University of Land Forces Czajkowskiego Str. 109 51-147 Wroclaw Poland.
ChemistryOpen. 2018 Jul 30;7(9):677-687. doi: 10.1002/open.201800100. eCollection 2018 Sep.
The nickel(II) complex with a tetradentate Schiff base ligand obtained by condensation of 1,3-propanediamine with salicylaldehyde (Hsalpn) was studied in a variety of solvents at room temperature. The product, that is, the ',''-propylenebis(salicylaldiminato)nickel(II) ([Ni(salpn)]) complex, is brown in color in the solid state. The properties of the ligand and complex were characterized by elemental analysis, solubility in common solvents, molar conductivities, and ultraviolet (UV) and visible (Vis) spectroscopy. The [Ni(salpn)] complex is easily soluble in common solvents such as chloroform, methanol, ethanol, dimethyl formamide, dimethyl sulfoxide, acetonitrile, dioxane, acetone, 2-propanol, and toluene-a necessary condition for observing solvatochromism. The molar conductivity values, equal to 0.0 S mol cm in these solvents, point to a typical non-electrolyte behavior for this complex. Spectroscopic measurements were used to confirm the square-planar geometry of the species in solution and to determine the coordination properties of the donor atoms and their bonding abilities (CFM/AOM parameters), as well as trichromaticity coordinate calculations. The results obtained show that the interactions of the metal with the donors depend on the polarity of the solvent.
研究了由1,3 - 丙二胺与水杨醛缩合得到的具有四齿席夫碱配体的镍（II）配合物在室温下于多种溶剂中的情况。产物，即“N,N'-亚丙基双（水杨醛亚胺基）镍（II）”（[Ni(salpn)]）配合物，在固态时为棕色。通过元素分析、在常见溶剂中的溶解度、摩尔电导率以及紫外（UV）和可见（Vis）光谱对配体和配合物的性质进行了表征。[Ni(salpn)]配合物易溶于常见溶剂，如氯仿、甲醇、乙醇、二甲基甲酰胺、二甲基亚砜、乙腈、二氧六环、丙酮、2 - 丙醇和甲苯——这是观察溶剂化显色现象的必要条件。在这些溶剂中摩尔电导率值等于0.0 S·mol⁻¹·cm，表明该配合物具有典型的非电解质行为。光谱测量用于确认溶液中该物种的平面正方形几何结构，并确定供体原子的配位性质及其键合能力（CFM/AOM参数），以及三色性坐标计算。所得结果表明金属与供体的相互作用取决于溶剂的极性。
