Gas-phase basicity: Parameter determining the efficiency of laser desorption/ionization from silicon surfaces
Grechnikov, A.A.
Gas-phase basicity: Parameter determining the efficiency of laser desorption/ionization from silicon surfaces A.A Grechnikov, A.S. Borodkov, .S.S Alimpiev, S.M Nikiforov and Ya O. Simanovsky - Journal of Analytical Chemistry Volume 68, number 1, .
The efficiency of laser desorption/ionization of twenty compounds from the surface of amorphous silicon is studied as a function of proton affinity (PA) and gas-phase basicity (GB). The values of GB and PA are obtained from quantum-chemical calculations using the density functional theory in the B3LYP model with the 6–311++G(3df,3pd) basis set. The values of GB lie in the range from 845 to 977 kJ/mol. The efficiency of laser desorption/ionization exponentially depends on the GB and PA values and for the studied compounds varies from 7 × 10−6 to 1.4 × 10−2.
Analytical chemistry
Gas-phase basicity: Parameter determining the efficiency of laser desorption/ionization from silicon surfaces A.A Grechnikov, A.S. Borodkov, .S.S Alimpiev, S.M Nikiforov and Ya O. Simanovsky - Journal of Analytical Chemistry Volume 68, number 1, .
The efficiency of laser desorption/ionization of twenty compounds from the surface of amorphous silicon is studied as a function of proton affinity (PA) and gas-phase basicity (GB). The values of GB and PA are obtained from quantum-chemical calculations using the density functional theory in the B3LYP model with the 6–311++G(3df,3pd) basis set. The values of GB lie in the range from 845 to 977 kJ/mol. The efficiency of laser desorption/ionization exponentially depends on the GB and PA values and for the studied compounds varies from 7 × 10−6 to 1.4 × 10−2.
Analytical chemistry