本论文的主要目的是采用固相合成反应合成新型的[AxMyM'y'Qz]型多元金属硒化物。
经EDS表征,合成了十九个新的[AxMyM'y'Qz]型多元金属硒化物,其中包括十一个三元金属硒化物和八个四元金属硒化物,初步推断它们的分子式为:KNbSe5,K3Sn3Se7,K2Zr2Se9,K2Ge4Se8,K3Ge2Se9, KTi10Se6,K7Ag2Se8,K9SnSe7,K3In2Se7,CuInSe2,Ag8GeSe, K2TiCu2Se4,KMnAgSe2,K12NbBi2Se3,K2TiAg2Se4,KAg2Bi3Se7, K2CuIn2Se6,K2BiSn4Se6,K5TiAg6Se24。
测定了K2Ge4Se8和K2CuIn3Se6的晶体结构。K2Ge4Se8晶体属于单斜晶系,空间群为P21/c, 晶胞参数 a = 0.73752(5) nm, b = 1.2239(2) nm, c = 1.7468(4) nm,β = 96.02(3)°, V = 1.5680(5) nm3, Z = 4。K2Ge4Se8晶体具有层状结构,二维的 2∞[Ge4Se8]2-负...
【英文摘要】
The major contribution in this paper is the synthesis of novel [AxMyM'y'Qz] multi-component metal selenides by the method of solid state synthesis.
1. By analyses of EDS of nineteen novel [AxMyM'y'Qz] multi-component metal selenides we have synthesized, including eleven ternary metal selenides, eight quaternary metal selenides, which are KNbSe5, K3Sn3Se7, K2Zr2Se9, K2Ge4Se8, K3Ge2Se9, KTi10Se6, K7Ag2Se8, K9SnSe7, K3In2Se7, CuInSe2, Ag8GeSe and K2TiCu2Se4, KMnAgSe2, K12NbBi2Se3, K2TiAg2Se4, KAg2Bi...