Dołęga Anna, Jabłońska Agnieszka, Pladzyk Agnieszka, Ponikiewski Łukasz, Ferenc Wiesława, Sarzyński Jan, Herman Aleksander
Department of Inorganic Chemistry, Chemical Faculty, Gdansk University of Technology, G. Narutowicza St. 11/12, 80-233 Gdansk, Poland.
Dalton Trans. 2014 Sep 7;43(33):12766-75. doi: 10.1039/c4dt01079e.
Four heteroleptic complexes of nickel(ii), cobalt(ii) and zinc(ii), containing a monodentate silanethiolate ligand derived from tris(2,6-diisopropylphenoxy)silanethiol (TDST), were prepared and characterized. Nickel(ii) and cobalt(ii) complexes of the formula M(NH3)2(TDST)2 (M = Ni(ii) complex , M = Co(ii) complex ) were obtained from the respective chlorides. Zinc complexes of the general formula Zn(acac)(TDST)(L), where L = EtOH (complex ) or H2O (complex ), were obtained from zinc acetylacetonate. A single-crystal X-ray structural analysis revealed that all crystalline products are solvent adducts. The geometries of ligands in the complexes are typical: distorted tetrahedral in zinc and cobalt(ii) complexes and square planar in nickel(ii) compounds. Magnetic studies performed for Ni(ii) and Co(ii) compounds confirmed the diamagnetic character of the first complex and high-spin paramagnetic configuration of the latter. Nickel(ii) and cobalt(ii) complexes were additionally characterized by UV-Vis and IR spectroscopy. IR bands for ligands in the complexes were assigned with the help of the DFT vibrational frequency calculations.
制备并表征了四种镍（II）、钴（II）和锌（II）的杂配配合物，它们含有源自三（2,6-二异丙基苯氧基）硅烷硫醇（TDST）的单齿硅烷硫醇盐配体。式为M(NH₃)₂(TDST)₂（M = Ni（II）配合物，M = Co（II）配合物）的镍（II）和钴（II）配合物由各自的氯化物制得。通式为Zn(acac)(TDST)(L)的锌配合物，其中L = EtOH（配合物）或H₂O（配合物），由乙酰丙酮锌制得。单晶X射线结构分析表明，所有结晶产物均为溶剂加合物。配合物中配体的几何构型是典型的：锌和钴（II）配合物中为扭曲四面体构型，镍（II）化合物中为平面正方形构型。对镍（II）和钴（II）化合物进行的磁性研究证实了第一种配合物的抗磁性和后者的高自旋顺磁构型。镍（II）和钴（II）配合物还通过紫外-可见光谱和红外光谱进行了表征。配合物中配体的红外谱带借助密度泛函理论振动频率计算进行了归属。
