Crystal structure of bis(iso-maleonitriledithiolate)nickel(II) benzylpiperidinium

bis(iso-maleonitriledithiolate)nickel(II) anion benzylpiperidinium crystal structure

Строение новых карбонильных кластерных комплексов с остовом [Fe4(m4-Q)(m4-AsCH3)(CO)11], Особенности трехцентрового водородного связывания в ди(винилпирролил)пиридине и ди(винилпиридил)пирроле по данным ab initio расчета и QTAIM анализа, ...

Consolidate the stacking of the molecules The electrostatic interaction between [Ni(i-mnt)2]2– anions and [BzPid]+ cations consolidates the stacking of the molecules. <...> Keywords: bis(iso-maleonitriledithiolate)nickel(II) anion, structure. benzylpiperidinium, crystal With the rapid development of coordination chemistry, studies on transition metal complexes are drawing widespread attention, especially in the field of 1,2-dithiolene ligands, due to their highly electronic extend systems, excellent properties and application in the conductive, superconductive and magnetic properties [ 1—8 ]. <...> As a result, the important characteristics of the i-mnt ligand prompted us to synthesize and characterize a new ion-pair complex bis(iso-maleonitriledithiolate)nickel(II) benzylpiperidinium [BzPid]2[Ni(i-mnt)2] (1). <...> The crystal structure, weak interactions and the stacking mode of 1 have systematically been investigated. <...> Electronic spectra were recorded on a SHIMADZU UV-4000 spectrophotometer and the solution concentrations were 1.0ė10–5 molŒ l–1 in MeCN. <...> Brown single crystals suitable for the X-ray structural analysis were obtained by evaporating a solution of 1 in a mixed solution of MeCN and i-PrOH (v/v = 1:2). <...> All nonhydrogen atoms were refined with anisotropic thermal parameters. <...> All H atoms were placed in calculated positions, assigned fixed isotropic displacement parameters 1.2 times the equivalent isotropic U value of the attached atom, and allowed to ride on their respective parent atoms. <...> Selected bond lengths and bond angles are listed in Table 2. <...> The nickel(II) ion of the [Ni(i-mnt)2]2– anion is coordinated by four sulfur atoms of i-mnt2– ligands and situated at the center of symmetry of a square planar complex in which two [BzPid]+ ions are related to each other by the symmetry center. <...> The electrostatic interaction between the [Ni(i-mnt)2]2– anions and the [BzPid]+ cations consolidates the stacking of the molecules (Fig. 2). <...> Bis(iso-maleonitriledithiolate)nickel(II) benzylpiperidinium, [BzPid]2[Ni(i-mnt)2] (1) is prepared and characterized by elemental analyses, UV, IR, molar conductivity, and single crystal X-ray diffraction. <...>

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