The geometry of the SiNCO fragment in the isocyanate (PhMe 2 Si) 2 CSiMe 2 NCO ( doi:10.1016/0022-328X(94)00014-4Salih S. Al-JuaidSchool of Chemistry and Molecular Sciences, University of Sussex, Brighton BN1 9QJ, UKAhmed A.K. Al-NasrSchool of Chemistry and Molecular Sciences, ...
We examine electromagnetically induced transparency (EIT), the optical preparation of persistent nuclear spin coherences and the retrieval of light pulses both in a Λ-type and a V-type coupling scheme in a Pr3+:Y2SiO5 crystal, cooled to cryogenic temperatures. The medium is prepared by opti...
A Cubic (3,4)-Connected Net with Large Cavities in Solvated [Cu 3 (tpt) 4 ](ClO 4 ) 3 (tpt = 2,4,6-Tri(4-pyridyl)-1,3,5-triazine) The molecular geometry and vibrational frequencies of 9-fluorenone have been calculated using the Hartree-Fock and Becke-3-Lee-Yang-Parr(B3LYP) ...
(Y2Si2O7) will be the only oxide present in the material if the Y2O3/SiO2ratio of at least 2.5 is observed and substantially only Y2Si2O7when the Y2O3/SiO2ratio exceeds 1.6. The molecular formulas for each of the two oxynitrides are Y10Si7O2N4and Y1Si1O2N1. These oxynitrides ...
SiO2–Al2O3 support in the form of calcined microspheres with average diameters between 70–105 µm were produced by spray drying, using two atomization discs with vanes of different geometry: a straight rectangular blade disc (DAR) and a curved rectangular vanes disc (DAC). The DAR disk ...