Synthesis and Crystalline Structure of Cluster Co3(CO)7(μ3-S)[μ,η2-SCNC (O)C (R1) (R2)N (COR3)]

Abstract

Abstract: Through the reaction of Co₂(CO)₈ with four thiohydantoins,(这里有图片19970802-1246-3.gif),four new sulfur-capped trinuclear cobalt carbonyl clusters (这里有图片19970802-1246-4.gif)[I: R₁=R₂=H;II: R₁=H,R₂=CH₃, R₃ =Ph; III: R₁=R₂=H, R₃=CH₃;IV: R₁=R₂=R₃=CH₃], were prepared and characterized by elementary analysis, IR, ¹H NMRand MSspectroscopy. The crystal struc-ture of the cluster (这里有图片19970802-1246-5.gif)(IV ) was deter-mined by X-ray single crystal diffraction method.The crystal of the cluster is triclinic be-longing to space group P1 and the cell parameters are as follows:a=0.8456(3) nm,b=1.1534(3)nm, c=1.1990(4)nm;α=107.36(3)°, β=108.44 (5)°, γ=90.18(3)°;V=1.052(6)nm³,Z=2, F(00 0) =584, D_c=1.86g/cm³, μ=25.71cm^-1,R=0.046,R_w=0.058. The molecule has revealed to have a pyrimidal Co3Sframework and contain a heterocyclic bridging bidentate ligand (这里有图片19970802-1246-6.gif)linked to the Co(1)and Co(2) atoms of the cluster by a cobalt-nitrogen and a cobalt-sulfur bond respectively.

Key words: Sulfo-trinuclear cobalt cluster, Thiohydantoino ligand, Synthesis, Crystal structure

CLC Number:

O614.81

TrendMD:

CHENG Qing-Min, LIU Shu-Tang, HU Xiang, LIU Qi-Wang, XU Ying . Synthesis and Crystalline Structure of Cluster Co₃(CO)₇(μ₃-S)[μ,η²-SCNC (O)C (R₁) (R₂)N (COR₃)][J]. Chem. J. Chinese Universities, 1997, 18(8): 1246.

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Synthesis and Crystalline Structure of Cluster Co₃(CO)₇(μ₃-S)[μ,η²-SCNC (O)C (R₁) (R₂)N (COR₃)]

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