A charge transfer salt consisted of bis(maleonitriledithiolato)zincate dianion and 1,1'-didecyl-4,4'-bipyridinium exhibiting uncommon nematic mesophase behavior

作者：Liu, Xu; Liu, Jian-Lan^*; Cai, Bin; Ren, Xiao-Ming

来源：Inorganic Chemistry Communications, 2011, 14(9): 1428-1431.

DOI：10.1016/j.inoche.2011.05.038

• Bis(maleonitriledithiolato)zincate dianion
• 1,1'-didecyl-4,4'-bipyridinium
• Electrochemical property
• Mesophase

An ionic metal-dithiolene complex, 1,1'-didecyl-4,4'-bipyridinium bis(maleonitriledithiolato)zincate(II) ([Zn (mnt)(2)](2-)), was synthesized and characterized by elemental analysis, infrared spectroscopy and crystal structure. In the [Zn(mnt)(2)](2-) moiety, the complex shows distorted tetrahedral geometry with Zn2+ coordinated to four S-atoms from two mnt(2-) ligands. and its long molecular axis adopts a similar orientation with 1,1'didecyl-4,4'-bipyridinium. Two distinguishable redox processes occur in the voltage region of -1.0 to 1.0 V, with the irreversible and reversible redox couples corresponding to [Zn(mnt)(2)](2-)/[Zn(mnt)(2)](center dot-) and 1,1'-didecyl-4,4'bipyridiniurn(center dot+)/1,1'-didecyl-4,4'-bipyridinium(2+), respectively. An uncommon nematic mesophase behavior in this complex was confirmed by polarized-light optical microscopy (POM) and differential scanning calorimetry (DSC) measurements.

• 出版日期2011-9
• 单位南京工业大学; 南京大学