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[Au13Ag12(μ-Br)1(μ3-Br)2 (Ph3P)10Br2] Br, monoclinic. space group C2/m, a = 36. 496(17). b=16. 878(7), c-=19. 772(9) A , β=99. 87(5)°, V=11998. 9 A3.Z=2. The final R(Rw) is 0. 097(0. 109) for 3779 reflections with I>3σ(I). The structure can he considered as two icosahedral cluster units (AurAg6) sharing one vertex and linked hy six bromine atoms. The Au - Au, Au - Ag. and Ag-Ag distances fall in the ranges of 2. 69-2. 96. 2. 84-3. 02. and 2. 92-3. 26 A, respectively.
[Au13Ag12 (μ-Br) 1 (μ3-Br) 2 (Ph3P) 10Br2] Br, monoclinic space group C2 / m, a = 36. 496 (17). B = 16.878 (7), c- = 19.772 (9) A, β = 99.87 (5) °, V = 11998.9 A3.Z = 2. The final R (Rw) is 0. 097 (0.109) for 3779 reflections with I> 3σ (I). The structure can be considered as two icosahedral cluster units (AurAg6) sharing one vertex and linked hy six bromine atoms. The Au-Au, Au- Ag. And Ag-Ag distances fall in the ranges of 2. 69 -2. 96. 2. 84-3. 02. and 2. 92-3. 26 A, respectively.