论文部分内容阅读
Compound Co6Sc8(Ph3P)6 was obtained by mixing CoBr2, Ph3P, and Na2Se2 in DMF in high yield. It crystallizcs in triclinic system with space group Pland the following unit cell dimensions; a=15. 165(4) ,b= 16. 522 (4) ,c = 21. 274 (5) A .α= 92. 75(2),β=90. 56(2),γ=102.47(2)°,V = 5197. 4 A3.Z = 2,DC=1. 68g/cm3. The final refinement converged with R-. 048 and Rw =0. 059 for 8175 reflections with I≥3σ(I). The molecular structure consists of a slightly distorted octahedral Co6-core. The Co-Co distances fall in the range of 2. 955 - 3. 032A.
Compound Co6Sc8 (Ph3P) 6 was obtained by mixing CoBr2, Ph3P, and Na2Se2 in DMF in high yield. It crystallizcs in triclinic system with space group Pland the following unit cell dimensions; a = 15. 165 (4), b = 16. 522 (4), c = 21. 274 (5) A.α = 92.75 (2), β = 90.56 (2), γ = 102.47 (2) °, V = 5197. 4 A3.Z = 2, DC = 1.68 g / cm3. The final refinement converged with R-. 048 and Rw = 0. 059 for 8175 reflections with I ≥ 3σ (I). The molecular structure consists of a slightly distorted octahedral Co6-core. The Co-Co distances fall in the range of 2. 955 - 3. 032A.