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The title crystals are golden yellow rhomboic plates, belonging to the monoelinic system. The space group is P_(B_1)/n with unit cell parameters a=16.570(2), b=12.370(1), c=20.007(2), β=99.97(1)°, Z=4, D_c=1.938 g.cm~(-3). The crystal structure was solved mainly by the heavy atom method and refined by the full-matrix least-squares to a final R factor of 0.047 based on 4387 unique reflections with intensities I≥2σ(I). The results show that the crystal structure consists of neutral mono-oxo-capped trinuclear molybdenum cluster molecules with an average Mo-Mo bond length of 2.626(4) and an average Mo-O bond length of 2.036(2) respectively. Each pair of Mo atoms is further bridged by an S_2~(2-) radical, in which one S atom is essentially situated on the triangular plane formed by these three Mo atoms and the other one is situated on the side of the plane opposite to the μ_3-O atom. Besides, each Mo atom is coordinated to two S atoms belonging to an [S_2P(OEt)_2]~-radical so as to complete a nearly pen
The title groups are golden yellow rhomboic plates, belonging to the monoelinic system. The space group is P_ (B_1) / n with unit cell parameters a = 16.570 (2), b = 12.370 (1), c = 20.007 β = 99.97 (1) °, Z = 4, D c = 1.938 g · cm -3. The crystal structure was solved mainly by the heavy atom method and refined by the full-matrix least-squares to a final R factor of 0.047 based on 4387 unique reflections with intensities I ≥ 2σ (I). The results show that the crystal structure consists of a neutral mono-oxo-capped trinuclear molybdenum cluster molecules with an average Mo-Mo bond length of 2.626 (4) and an average Mo-O bond length of 2.036 (2) respectively. Each pair of Mo atoms is further bridged by an S_2 ~ (2-) radical, in which one S atom is essentially situated on the triangular plane formed by these three Mo atoms and the other one is situated on the side of the plane opposite to the μ_3-O atom. Moreover, each Mo atom is coordinated to two S atoms belonging to an [S_2P (OEt) _2] ~ -radical so as to co mplete a nearly pen