The crystal structure of lisiguangite, CuPtBiS3, from Yanshan mountains, Chengde Prefecture, Hebei Province, China has been determined by single crystal X-ray diffraction. It belongs to orthorhombic space group P21212...The crystal structure of lisiguangite, CuPtBiS3, from Yanshan mountains, Chengde Prefecture, Hebei Province, China has been determined by single crystal X-ray diffraction. It belongs to orthorhombic space group P212121 with a = 7.7372（15）A, b = 12.844（3） A, c -- 4.9062（10） A, V = 487.57（17） A^3, Z = 4. The final full-matric least-square refinement on F2 converged with R1 = 0.0495 and wR2 = 0.0992 for 704 observed reflections [I≥2σ（I）]. Lisiguangite is the isomorph of known CuNiSbS3 and CuNiBiS3. Pt^2＋ and Bi^3＋ have the distorted octahedral coordination enviroments composed of two metal and four S and Cu^＋2 has a distorted tetrahedrai coordination environment with four S atoms. Each S atom is surrounded by four metals to give a tetrahedral environment. The crystal structure is a complex 3 dimensional network.展开更多
It was not possible to carry out a complete analyses of crystal, as the experiment by Ding and Shi et al.. It＇s analysis precision R=0.25 or more big than this, which value are not satisfied for single crystal study,...It was not possible to carry out a complete analyses of crystal, as the experiment by Ding and Shi et al.. It＇s analysis precision R=0.25 or more big than this, which value are not satisfied for single crystal study, but we through many test and found the best： [R（int）=14.5%]. The final fullmatix least-squares refinement on F2 converged to R1=0.0791 and wR2=0.1864 for 704 observed reflections [I 3 2s（I）]. Daomanite is orthorhombic system, space group Cmc21, a=3.7520（8））A, b=15.844（4） A, c=5.8516（12） A, α=β=γ=90°. V=347.86（14）A3, Z=4. Daomanite chemical formula is Cu Pt AsS 2. Idealized composition Me＋M2＋M2＋S2=CuS ·PtA s S. There is no other similar mineral in the world.展开更多
文摘The crystal structure of lisiguangite, CuPtBiS3, from Yanshan mountains, Chengde Prefecture, Hebei Province, China has been determined by single crystal X-ray diffraction. It belongs to orthorhombic space group P212121 with a = 7.7372（15）A, b = 12.844（3） A, c -- 4.9062（10） A, V = 487.57（17） A^3, Z = 4. The final full-matric least-square refinement on F2 converged with R1 = 0.0495 and wR2 = 0.0992 for 704 observed reflections [I≥2σ（I）]. Lisiguangite is the isomorph of known CuNiSbS3 and CuNiBiS3. Pt^2＋ and Bi^3＋ have the distorted octahedral coordination enviroments composed of two metal and four S and Cu^＋2 has a distorted tetrahedrai coordination environment with four S atoms. Each S atom is surrounded by four metals to give a tetrahedral environment. The crystal structure is a complex 3 dimensional network.
文摘It was not possible to carry out a complete analyses of crystal, as the experiment by Ding and Shi et al.. It＇s analysis precision R=0.25 or more big than this, which value are not satisfied for single crystal study, but we through many test and found the best： [R（int）=14.5%]. The final fullmatix least-squares refinement on F2 converged to R1=0.0791 and wR2=0.1864 for 704 observed reflections [I 3 2s（I）]. Daomanite is orthorhombic system, space group Cmc21, a=3.7520（8））A, b=15.844（4） A, c=5.8516（12） A, α=β=γ=90°. V=347.86（14）A3, Z=4. Daomanite chemical formula is Cu Pt AsS 2. Idealized composition Me＋M2＋M2＋S2=CuS ·PtA s S. There is no other similar mineral in the world.
