Synthesis and Crystal Structure of a Novel Pentanuclear Mo/Cu/S Cluster Compound [MoOS3Cu4(α-MePy)6Br2]

Abstract

Abstract: Reaction of(NH₄)₂MoOS₃ with CuBr and AgBr(molar ratio=1∶4∶1) in α-MePy produced dark red crystals of [MoOS₃Cu₄(α-MePy)₆Br₂]. The product was characterized by elemental analysis, IR and X-ray diffraction. It crystallizes in a triclinic system with space group P1 and unit cell parameters a=0.950 9(3) nm, b=1.066 8(2) nm, c=2.153 6(3) nm, α=94.846(9)°, β=92.054(7)°, γ=99.299(8)°, V=2.145 5(8) nm³, Z=2, D c=1.828 g·cm^-3, F(000)=1 168, μ=42.79 cm^-1, R=0.049 and R_w=0.051. The compound consists of a nido-shaped MoS₃Cu₃ cluster unit and a four-membered CuBrCuS ring by sharing the same Cu3—S3 bond. The Mo atom and the four Cu atoms adopt a distorted tetrahedral geometry coordination. The Mo…Cu1, Mo…Cu2 and Mo…Cu3 distances are 0.271 1(3), 0 269 8(2), and 0.268 1(1) nm, respectively.

Key words: Mo/Cu/S cluster, Synthesis, Crystal structure

CLC Number:

O614

TrendMD:

ZHANG Wen-Hua, LI Hong-Xi, CHEN Jin-Xiang, XU Qing-Feng, LANG Jian-Ping. Synthesis and Crystal Structure of a Novel Pentanuclear Mo/Cu/S Cluster Compound [MoOS₃Cu₄(α-MePy)₆Br₂][J]. Chem. J. Chinese Universities, 2004, 25(5): 814.

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Synthesis and Crystal Structure of a Novel Pentanuclear Mo/Cu/S Cluster Compound [MoOS₃Cu₄(α-MePy)₆Br₂]

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