Sun Zhi Hua, Fan Jian Dong, Zhang Guang Hui, Wang Xin Qiang, Xu Dong
State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan 250100, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2008 Jan 9;64(Pt 2):o393-4. doi: 10.1107/S1600536807068791.
Ions of the title compound, C(6)H(15)N(2)O(2) (+)·C(2)F(3)O(2) (-), a new organic nonlinear optical crystal, are linked by N-H⋯O hydrogen-bonding inter-actions. Both the amino groups of the l-lysinium cation are protonated. A three-dimensional network of hydrogen bonds is observed, forming a closed ring. Inter-molecular N-H⋯O hydrogen bonds involving l-lysinium cations and trifluoro-acetate anions link the ions into extended chains which run parallel to the [010] direction. The F atoms of the trifluoro-acetate anion are disordered over two sites with site occupancies of 0.423 (18) and 0.577 (18). The asymmetric unit consists of two cations and two anions.
新型有机非线性光学晶体C(6)H(15)N(2)O(2) (+)·C(2)F(3)O(2) (-)的离子通过N-H⋯O氢键相互作用相连。L-赖氨酸阳离子的两个氨基均被质子化。观察到三维氢键网络，形成一个闭环。涉及L-赖氨酸阳离子和三氟乙酸根阴离子的分子间N-H⋯O氢键将离子连接成平行于[010]方向延伸的链。三氟乙酸根阴离子的F原子在两个位置上无序，占位分别为0.423 (18)和0.577 (18)。不对称单元由两个阳离子和两个阴离子组成。
