Abstract
The asymmetric unit of the title compound, [Zn(C6H8N4B)2(C12H8N2)], comprises one half of a ZnII cation (site symmetry 2), one di-hydro-bis-(pyrazol-1-yl)borate ligand in a general position, and one half of a phenanthroline ligand, the other half being completed by twofold rotation symmetry. The ZnII cation is coordinated in form of a slightly distorted octa-hedron by the N atoms of a phenanthroline ligand and by two pairs of N atoms of symmetry-related di-hydro-bis-(pyrazol-1-yl)borate ligands. The discrete complexes are arranged into columns that elongate in the c-axis direction with a parallel alignment of the phenanthroline ligands, indicating weak π-π inter-actions.
Highlights
The asymmetric unit of the title compound, [Zn(C6H8N4B)2(C12H8N2)], comprises one half of a ZnII cation, one dihydrobis(pyrazol1-yl)borate ligand in a general position, and one half of a phenanthroline ligand, the other half being completed by twofold rotation symmetry
The ZnII cation is coordinated in form of a slightly distorted octahedron by the N atoms of a phenanthroline ligand and by two pairs of N atoms of symmetry-related dihydrobis(pyrazol-1-yl)borate ligands
The discrete complexes are arranged into columns that elongate in the c-axis direction with a parallel alignment of the phenanthroline ligands, indicating weak – interactions
Summary
Spin-crossover transition-metal complexes (3d4–3d7) continue to be a fascinating class of functional materials in the field of coordination chemistry and have the potential to play a significant role in electronic data storage or in spintronics (Gutlich et al, 2013; Halcrow, 2013). It might be advantageous to deposit spin-crossover complexes as thin films on substrates This can be achieved by different methods of which physical vapour deposition is the most practicable because the formation of solvates can be ruled out. In this context, we have deposited various complexes with organoborate ligands mainly based on dihydrobis(pyrazol-1-yl)borate on different substrates (Naggert et al, 2011, 2015; Ossinger et al, 2017; Gopakumar et al, 2012; Kipgen et al, 2018). The planes of the five-membered rings of the dihydrobis(pyrazol-1-yl)borate ligand are rotated with respect to each other by 44.4 (2)
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