Directed Synthesis of Noncentrosymmetric Molybdates
Directed Synthesis of Noncentrosymmetric Molybdates
复制标题
DOI：
10.1021/cg050184z
复制
发表时间：
2005-07
影响因子：
3.8
通讯作者：
E. Muller;R. Cannon;Amy Sarjeant;K. Ok;and P. Shiv Halasyamani;A. Norquist
中科院分区：
文献类型：
--
作者：
E. Muller;R. Cannon;Amy Sarjeant;K. Ok;and P. Shiv Halasyamani;A. Norquist
利用手性有机胺直接合成了两个非中心对称的硫酸酯化的水杨酸酯。将含有（R）-2-甲基哌嗪或（S）-2-甲基哌嗪、MoO 3、H2SO 4和H2O的反应凝胶置于温和的水热条件下，得到[（R）-C5 H14 N2][（MoO 3）3（SO 4）]·H2O和[（S）-C5 H14 N2][（MoO 3）3（SO 4）]·H2O单晶。这些材料在非质心空间群P212121（No.19）中结晶，其表现出对映体晶体类别222（D2）。二次谐波产生活动上筛分粉末进行了测量。
The directed synthesis of two noncentrosymmetric sulfated molybdates has been achieved through the use of chiral organic amines. Reaction gels containing either (R)-2-methylpiperazine or (S)-2-methylpiperazine, MoO3, H2SO4, and H2O were subjected to mild hydrothermal conditions, resulting in the growth of single crystals of [(R)-C5H14N2][(MoO3)3(SO4)]·H2O and [(S)-C5H14N2][(MoO3)3(SO4)]·H2O. These materials crystallize in the noncentroysmmetric space group P212121 (No. 19), which exhibits the enantiomorphic crystal class 222 (D2). The second harmonic generation activities were measured on sieved powders.