Synthesis and Characterization of[Ni(dmit)_2]~-Polymorphs

Two[Ni(dmit)2]-polymorphs with different crystal structures are obtained by synthesis in different solvents.The results show that Crystal 1 is crystallized in the monoclinic space group P21/c,a=20.159(4),b=13.394(3),c=12.169(3).In the structure of crystal 1,the[Ni(dmit)2]-anions form a column via intermolecular S…S contacts,and the inter-anionic layers are filled with cationic.Crystal 2 belongs to triclinic space group P-1,a=11.7076(9),b=12.1072(9),c=12.3673(10).Different from 1,for 2,the[Ni(dmit)2]-anions are arranged with a rotation manner along the short molecular axis.