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Creators/Authors contains: "Power, Philip P"

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  1. Thermal Sn–C cleavage in the diarylstannylene Sn(AriPr4)2(AriPr4= C6H3-2,6-(C6H3-2,6-iPr2)2) was used to generate ˙Sn(AriPr4) and ˙AriPr4radicals for alkyne arylstannylation. 
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  2. Spontaneous Ge6O8cluster formation under ambient conditions using dispersion enhanced aryloxo ligands. 
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  3. Half a century since the photocatalytic disproportionation of Lappert's dialkyl stannylene SnR 2 , R = CH(SiMe 3 ) 2 (1) gave the persistent trivalent radical [·SnR 3 ], the characterization of the corresponding Sn(I) product, ·SnR is now described. It was isolated as the hexastannaprismane Sn 6 R 6 (2), from the reduction of 1 by the Mg(I)-reagent, Mg(BDI Dip ) 2 , (BDI = (DipNCMe) 2 CH, Dip + 2,6-diisopropylphenyl). 
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  4. Structural characterization of the complex [B(β-pinane) 3 ] (1) reveals non-covalent H⋯H contacts that are consistent with the generation of London dispersion energies involving the β-pinane ligand frameworks. The homolytic fragmentations of 1 , and camphane and sabinane analogues ([B(camphane) 3 ] (2) and [B(sabinane) 3 ] (3)) were studied computationally. Isodesmic exchange results showed that London dispersion interactions are highly dependent on the terpene's stereochemistry, with the β-pinane framework providing the greatest dispersion free energy (Δ G = −7.9 kcal mol −1 ) with Grimme's dispersion correction (D3BJ) employed. PMe 3 was used to coordinate to [B(β-pinane) 3 ], giving the complex [Me 3 P–B(β-pinane) 3 ] ( 4 ), which displayed a dynamic coordination equilibrium in solution. The association process was found to be slightly endergonic at 302 K (Δ G = +0.29 kcal mol −1 ). 
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