Ghosh, Sundargopal ; Fehlner, Thomas P. ; Beatty, Alicia M. ; Noll, Bruce C. (2005) Insertion of B−X (X = Cl, SMe2) moieties into ruthenaborane frameworks: synthesis and characterization of (η5-C5Me5Ru)2(μ-H)B4HmCln, (m,n= 4, 3; 5, 2; 7, 2),closo-1-(SMe2)-2,3-(η5-C5Me5Ru)2(μ3-H)B5HCl3, and closo-2,3-(η5-C5Me5Ru)2B6H3Cl3 Organometallics, 24 (10). pp. 2473-2480. ISSN 0276-7333
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Official URL: http://pubs.acs.org/doi/abs/10.1021/om050083y
Related URL: http://dx.doi.org/10.1021/om050083y
Abstract
The reaction of nido-1,2-(η5-C5Me5Ru)2(μ-H)2B3H7 (1) with the dichloroborane BHCl2·SMe2 results in the formation of three sets of B−Cl inserted metallaborane products: nido-1,2-(η5-C5Me5Ru)2(μ-H)B4H7Cl2 (2), pileo-2,3-(η5-C5Me5Ru)2(μ-H)B4H5Cl2 (three geometric isomers, 3−5), and pileo-2,3-(η5-C5Me5Ru)2(μ-H)B4H4Cl3 (a pair of geometric isomers, 6 and 7). When the same reaction was carried out under more forcing conditions, three new metallaborane compounds, closo-1-(SMe2)-2,3-(η5-C5Me5Ru)2(μ3-H)B5HCl3 (a pair of geometric isomers, 8 and 9) and closo-2,3-(η5-C5Me5Ru)2B6H3Cl3 (10), were isolated in low yield in addition to 2−7. Compounds 8 and 9 exhibit a capped-octahedral geometry, and 10 exhibits a seven-sep (skeletal electron pair) bicapped-octahedral geometry. Reaction of nido-2,4-(η5-C5Me5Ru)2B6H12 and nido-2,3-(η5-C5Me5Ru)2B8H12 with BHCl2·SMe2 results in substitution of terminal H by Cl, producing nido-2,4-(η5-C5Me5Ru)2B6H10Cl2 (11) and nido-2,3-(η5-C5Me5Ru)2B8H11Cl (12) in 82% and 75% yields, respectively.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 109035 |
| Deposited On: | 31 Jan 2018 12:28 |
| Last Modified: | 31 Jan 2018 12:28 |
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