摘要
合成了钇与丙氨酸配合物的单晶，用Ｘ射线衍射法测定了配合物单晶的结构，化学式为［Ｙ（Ａｌａ）（Ｈ２Ｏ）６］Ｃｌ３。配合物晶体属单斜晶系，Ｐ２１／ｃ空间群。晶胞参数：ａ＝０８４４３（２）ｎｍ，ｂ＝１５６５８（３）ｎｍ，ｃ＝１１３５９（２）ｎｍ，β＝１０２０９（２）°，Ｖ＝１４６８４（５）ｎｍ３，Ｚ＝４，Ｄｃ＝１７７５ｇ／ｃｍ３。Ｙ３＋的配位数为８，其配位多面体为三角十二面体。通过元素分析、红外光谱、核磁共振谱、差热分析、分子量测定等手段进一步确证了配合物的结构，组成和性质。
The title complex is synthesized and its crystal structure is determined by single crystal X ray diffraction techniques with a four circle diffractometer to give a final R value of 0 0289 and W R value of 0 0502. The crystal is monoclinic with a space group P2 1/c . The unit cell parameters are: a =0 8443(2) nm, b =1 5658(3) nm, c =1 1359(2) nm, β =102 09(2)°, V =1 4684(5) nm 3, Z =4, D c=1 775 g/cm 3. Each two yttrium atoms in crystal are connected with a carboxyl group to form a chain polymeric molecule. In addition, every yttrium is coordinated by 6 oxygen atoms from water molecules. The coordination number of yttrium ion is 8 and the coordination polyhedron is a distorted trigondodecahedron.
出处
《中国稀土学报》
CAS
CSCD
北大核心
1997年第2期97-101,共5页
Journal of the Chinese Society of Rare Earths
基金
稀土材料化学及应用国家重点实验室基金
国家攀登计划基金
关键词
钇
丙氨酸
晶体结构
络合物
Rare earths, Yttrium, Alanine, Complex, Crystal structure
