Chemistry 472
ثبت نشده
چکیده
In this experiment, rotational spectra are collected using a microwave spectrometer. Initially, the structure of a linear molecule OCS is determined by measuring the frequency of the zero-field J = 2 ←1 transition for isotopically-substituted OCS molecules. In the second part of the experiment, the the dipole moment of NH3 is determined from the frequencies of the (3,3) NH3 inversion when different Stark voltages are applied to the sample cell. The latter calculation requires a knowledge of the cell spacing. The cell is calibrated with OCS, a molecule for which the dipole moment is very precisely known.
منابع مشابه
Tyrosine residues in bovine phospholipase C-gamma phosphorylated by the epidermal growth factor receptor in vitro.
We have identified the sites phosphorylated in vitro by epidermal growth factor (EGF) receptor kinase in bovine brain phospholipase C-gamma (PLC-gamma). They are tyrosine residues 472, 771, 783, and 1254. The rate of phosphorylation was fastest with the sites at 771 and 783, then at 1254, and slowest at 472. PLC-gamma isolated from cells treated with EGF is known to contain at least four tyrosi...
متن کاملComputational study of substituent effect on the electronic properties of ferrocylidene acetophenones complexes
In this study, the substituent effect on the electronic, spectroscopic properties and thermodynamic parameters of neutral and oxidized states of ferrocylidene acetophenone complexes was investigated by adopting the hybrid meta exchange-correlation functional of M06-2X. The frontier orbitals and the highest occupied molecular orbitals–lowest unoccupied molecular orbitals gaps of the substituted ...
متن کاملPulse radiolysis of aqueous thiocyanate solution.
The pulse radiolysis of N(2)O saturated aqueous solutions of KSCN was studied under neutral pH conditions. The observed optical absorption spectrum of the SCN(*) radical in solution is more complex than previously reported, but it is in good agreement with that measured in the gas phase. Kinetic traces at 330 and 472 nm corresponding to SCN(*) and (SCN)(2)(*-), respectively, were fit using a Mo...
متن کاملEffects of Nano Elicitors on Callus Induction and Mucilage Production in Tissue Culture of Linum usitatissimum L.
Background: Tissue culture is a new approach for production of secondary metabolites with many advantages over conventional methods. Elicitors such as nano particles are molecules that can stimulate the production of secondary metabolites. Objective: This study was conducted to evaluate the effects of some nano particles on mucilage production in Linum usitatissimum under tissue culture condit...
متن کاملCorrelation between amount of virus with altered nucleotide sequence and the monkey test for acceptability of oral poliovirus vaccine.
Production of live attenuated oral poliomyelitis vaccine (OPV) requires rigorous neurovirulence safety testing of each vaccine lot, currently carried out in monkeys. It has been reported that a change from 472-U to 472-C in the type 3 OPV RNA is associated with an increased histologic lesion score produced upon intraspinal inoculation of the mutant virus in monkeys. We have developed a method, ...
متن کاملEstimation of Time-Scaling Factor for Ultrasound Medical Images Using the Hilbert Transform
Ultrasound Medical Images Using the Hilbert Transform Jérémie Fromageau1∗, [email protected], tel: (+1) 514 890 8000 #24773 Hervé Liebgott, [email protected], tel: (+33) 472 43 87 81 Elisabeth Brusseau, [email protected], tel: (+33) 472 43 61 41 Didier Vray, [email protected], tel: (+33) 472 43 87 84 Philippe Delachartre, [email protected], ...
متن کامل