We report the first laboratory and interstellar detection of alpha-cyano vinyl radical (H2CCCN). This species was produced in by an electric discharge a gas mixture cyanide, CH2CHCN, Ne, its rotational spectrum characterized using Balle-Flygare narrowband-type Fourier-transform microwave spectrometer operating frequency region 8-40 GHz. The observed shows complex structure due to tunneling spli...

We performed detailed photoluminescence (PL) spectroscopy studies of three different types of single-walled carbon nanotubes (SWNTs) by using samples that contain essentially only one chiral type of SWNT, (6,5), (7,5), or (10,5). The observed PL spectra unambiguously show the existence of an emission sideband at ~ 145 meV below the lowest singlet excitonic (E11) level, whose identity and origin...

Graphite-like carbon nitride (g-C3N4) is considered as a promising candidate for energy materials. In this work, the biaxial strain (?4%–4%) effects on piezoelectric properties of g-C3N4 monolayer are studied by density functional theory (DFT). It found that increasing can reduce elastic coefficient C11-C12, and increases stress e11, which lead to enhanced d11. Compared unstrained one, 4% raise...

The E11 valine in the distal heme pocket of either the α- or β-subunit of human adult hemoglobin (Hb A) was replaced by leucine, isoleucine, or phenylalanine. Recombinant proteins were expressed in Escherichia coli and purified for structural and functional studies. (1)H NMR spectra were obtained for the CO and deoxy forms of Hb A and the mutants. The mutations did not disturb the α1β2 interfac...

The baldcypress leafroller, Archips goyerana Kruse (Lepidoptera: Tortricidae), is a specialist on Taxodium distichum (L.) Richard and has caused serious defoliation in swamps of southeastern Louisiana, accelerating decline of baldcypress forests concurrently suffering from nutrient depletion, prolonged flooding, and saltwater intrusion. We investigated the composition of the sex pheromone of th...