Anion-controlled assemblies of C-H center dot center dot center dot O hydrogen bonded grid, stair or bilayer structures by L-shaped pyridinium salts

作者：Lee Chia Hao; Su Fang Yi; Lin Yi Hsiu; Chou Chih Ho; Lee Kwang Ming^*

来源：CrystEngComm, 2011, 13(7): 2318-2323.

DOI：10.1039/c0ce00610f

A series of 1-carbamoylmethyl-3-ethoxycarbonylmethylpyridinium salts with different anions (PF6- (1), BF4- (2), OTf- (3) and Br- (4)) have been synthesized and characterized by single-crystal X-ray diffraction. The L-shaped pyridinium cation moieties provide rich C-H donors and serve as building blocks to form grid structures with PF6- and BF4-, a zig-zag stair structure with OTf- and a bilayer structure with Br- anions.

• 出版日期2011