| Abstract
| - The lightly coordinated cluster [Bu4N]2[W6Cl8(OSO2CF3)6] has been prepared in high yield by the reaction of excess AgOSO2CF3 with [Bu4N]2[W6Cl8Cl6]. The triflate cluster has been structurally characterized and has been found to serve as a useful precursor for the preparation of a variety of axially substituted clusters [W6Cl8L6]n (L = Cl-, Br-, I-, NCS-, NCO-, NCSe-, and OdPPh3; n = 2− or 4+).
- The new cluster [Bu4N]2[W6Cl8(OSO2CF3)6] (1) has been prepared and structurally characterized. This materialis an effective precursor for the generation of cluster ions with the general formula [W6Cl8L6]n (L = Cl-, Br-,I-, NCS-, NCO-, NCSe-, and OPPh3; n = 2− or 4+). The last three clusters are new. The products have beencharacterized by IR spectroscopy, NMR spectroscopy, and FAB mass spectrometry. In addition to 1, the products[Bu4N]2[W6Cl8(NCS)6] (5) and [Bu4N]2[W6Cl8(NCO)6] (7) were structurally characterized. Crystal data for 1: space group, P21/c (No. 14); a = 11.116(5) Å; b = 27.952(1) Å; c = 24.516(1) Å; β = 95.182(9)°; V = 7586.3(5) Å3; Z = 4. Crystal data for 5: space group, P21/n (No. 14); a = 11.3323(9) Å; b = 12.3404(9) Å; c =44.583(3) Å; β = 97.089(1)°; V = 6187.1(7) Å3; Z = 4. Crystal data for 7: space group, P1̄ (No. 2); a =11.8009(8) Å; b = 11.9332(8) Å; c = 11.9522(8) Å; α = 77.904(1)°; β = 95.182(9)°; γ = 62.574(1)°; V =1450.5(2) Å3; Z = 1.
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