摘要
以糖精钠(sac-Na)、甘氨酸和硫酸锰为原料合成得到糖精锰白色块状晶体,采用红外、X-射线单晶衍射对配合物进行了表征,证明该晶体属单斜晶系,空间群为P121/c1,晶胞参数为:a=7.9660(7),b=16.1693(15),c=7.8078(7),α=90(°),β=99.640(9)(°),V=991.49(15),Z=2,Dc=1.767g/cm3,F(000)=542,R=0.0276。结构分析表明,Mn处于四角双锥八面体配位环境中,4个水分子在赤道平面上与Mn配位,晶胞中还包含有2个游离的结晶水,形成了含6个水分子的结晶物。
Tetraaquabis(saccharinato-Na) manganese ( Ⅱ ) dihydrate compound is first synthesized by reac- tion of saccharin sodium,glycine,with manganic sulfate and characterized by infrared spectrometry and X- ray diffraction single crystal analysis with the following crystal data: monoclinic, space group P121/cl, a =7. 9660(7), b= 16. 1693(15), c=7. 8078(7),a=90(°), fl= 99. 640(9)(°), V= 991.49(15), Z=2, Dc = 1. 767 g/cm3, F(000) = 542, R= 0. 0276. The result of single-crystal X-ray diffraction reveals that the center Mn atom is located in the four-corner bipyramid coordination environment of the basic unit of the compound, four H2O molecules coordinate to Mn above the equatorial plane, and the crystal cell contains two free crystal water molecules, so it forms the six-water crystal comoound.
出处
《化学世界》
CAS
CSCD
北大核心
2013年第8期471-473,共3页
Chemical World
基金
平顶山学院高层次人才科研项目经费(2006049)
关键词
糖精钠
硫酸锰
甘氨酸
晶体结构
二水合物
saccharin sodium (sac-Na)
manganic sulfate
glycine
crystal structure
dihydrate