Flexible cis‐Cyclohexane‐1,4‐diammonium Ion in Magnetic [Ni(dmit)2] Crystals

摘要: Reactions exchanging the cation in (nBu4N)[Ni(dmit)2] to cis-cyclohexane-1,4-diammonium (cis-CHDA) presence of [18]crown-6, benzo[18]crown-6 (B[18]crown-6) and dibenzo[18]crown-6 (DB[18]crown-6) yielded crystals monovalent [Ni(dmit)2] complex, namely (cis-CHDA)([18]crown-6)2[Ni(dmit)2]2 (1), (cis-CHDA)(B[18]crown-6)2[Ni(dmit)2]2 (2) (cis-CHDA)(DB[18]crown-6)2[Ni(dmit)2]2 (3). The two ammonium groups (–NH3+) cis-CHDA dication at axial equatorial positions interact with oxygen atoms corresponding upper lower crown ethers form sandwich-type supramolecular cationic structures. lateral [Ni(dmit)2]− anion arrangements through S–S contacts along short long axis anions were realised 1, 2, 3 by asymmetrical dication. temperature- frequency-dependent anisotropic dielectric constants a crystal 1 evaluated a, b c axes, where thermally activated motion structurally flexible was consistent responses.