Novel crystal structures of potassium salts of chalcohydroxo cluster complexes [Re6Q8(OH)6]4− (Q = S or Se)
Tóm tắt
Potassium salts of chalcohydroxo rhenium cluster complexes [Re6Q8(OH)6]4− (Q = S or Se) with the composition K4[Re6S8(OH)6]·4H2O (1) and K4[Re6Se8(OH)6]·5H2O (2) are produced by evaporation of the corresponding strongly alkaline aqueous solutions. The composition of the compounds is determined by the single crystal X-ray diffraction study. The compounds crystallize in the triclinic space group P
$\bar 1$
with the following unit cell parameters: a = 8.408(2) Å, b = 9.096(2) Å, c = 9.222(2) Å, α = 95.110(4)°, β = 107.085(4)°, γ = 113.026(4)°, V = 603.5(3) Å3, Z = 1, d
x = 4.689 g/cm3 (for 1) and a = 8.782(3) Å, b = 9.155(4) Å, c = 9.325(4) Å, α = 105.481(7)°, β = 109.266(6)°, γ = 99.104(6)°, V = 656.6(4) Å3, Z = 1, d
x
= 5.305 g/cm3 (for 2).
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