Synthesis of 1,6-heterosubstituted products via radicals

Ketones and electron deficient alkenes are combined with each other via a methylene group to yield 1,6-heterosubstituted products in a radical chain reaction.     

High resolution 13C NMR in undoped cis- and trans-polyacetylene

We have applied ¹³C cross-polarization (CP) powder- and MAS-NMR to cis- and trans-polyacetylene. All three elements of the chemical shift tensor (σ₁₁, σ₂₂, σ₃₃) were determined in p.p.m. with respect to TMS as: (a) Cis; σ₁₁ = ?228, σ₂₂ = ?139, σ₃₃ = ?17; (b) Trans; σ₁₁ = ?234, σ₂₂ = ?146, σ₃₃ = ?34.     

Solvating collisions between deuterons and light-water octamers

One hundred classical trajectories have been numerically generated for solvating collisions of D⁺ with the stable light-water cluster (H₂O)₈. Ten distinct open channels were discovered, with product-ion hydration numbers ranging from 1 to 6. The deuteron tends preferentially to be carried away in neutrals, particularly when large ions are formed. The results can be explained in terms of competition between charge transfer within, and decomposition of, the charged reaction complex.