Boron Precursor-Dependent Evolution of Differently Emitting Carbon Dots.

Attention has been directed toward electron-deficient boron doping in carbon dots (CDs) with the expectation of revealing new photophysical aspects in accordance with varying amounts of boron content. It has been emphatically shown that boron uptake in CDs varies with different boron precursors evolving altered emissive CDs. Boron doping in CDs causes definite surface defect due to the generation of electron-deficient states.

Computational investigation of hydrogen adsorption by alkali-metal-doped organic molecules: role of aromaticity.

Hydrogen storage: Simple organic molecular systems (C(n)H(n), n=4, 5, 6, 8) are proposed for hydrogen storage purposes based on the concept of aromaticity. The adsorption of hydrogen is attributed to pronounced charge transfer from the sodium atom (green, see picture) to the organic systems and the electrostatic interaction between the ion and hydrogen molecules. Theoretical studies on hydrogen adsorption in small organic molecular systems, such as cyclobutadiene (C(4)H(4)), the cyclopentadienyl radical (C(5)H(5)), benzene (C(6)H(6)), and cyclooctatetraene (C(8)H(8)) and their metal-doped modifications, are carried out.