Kinetics and mechanism of CH3Br, CHF2Br, and C2HF4Br photolysis in the presence of dioxygen under the action of λ = 253.7 nm lightLarinI. K.BelyakovaT. I.MessinevaN. A.SpasskiiA. I.TrofimovaE. M.KINETICS AND CATALYSIS C/C OF KINETIKA I KATALIZ...
A kinetic study is presented of the vibronic energy distribution in SrBr following the reactions of the optically metastable, electronically excited strontium atom, Sr(5s5p(3PJ)), 1.807 eV above its 5s2(1S0 electronic ground state, in the presence of CH3Br and CF3Br. Sr(53P1) was generat...
结合信息i可知试剂a为CH3CH2CH2CH-Br CH;结合I分子式及信息ii中取代反应,可知H与NH2CONH2脱去2分子CH3OH形成六元环状,故I为IIN NII 0;(3) B、C互为同分异构体,二者发生信息iii中取代反应生成D,可推知C为HCOOC2H5,则D为CH3 H,B→D的化学方程式:0 0 0 0 碱 C2H5+ CH3 CH3+CIISOH H 0 H3C 0...
Very low pressure reactor technique (VLPR) is used to study the reaction Br + CHOOH in equilibrium HBr + CHO (1) at 298-333 K. The A factor for the reaction is estimated on the basis of the tight transition state model and is combined with the measured k to give the Arrhenius equati...
However, the growth of large-sized single crystals requires several processing steps and a long growth time, which engenders great difficulties in device integration. Herein, benzophenone (BP) was firstly introduced as a crystallizing agent to facilitate the construction of a high-quality CH3NH3PbBr...
A microwave rotational Zeeman study is performed on various halogen isotopes of CH3Cl, CH3Br and CH3I. The rotational spectra of these molecules is complicated by nuclear quadrupolar interactions. A method of data analysis is outlined which avoids the complication of performing a complete matrix ...
Cancer remains a highly lethal disease in the world. Currently, either conventional cancer therapies or modern immunotherapies are non-tumor-targeted therapeutic approaches that cannot accurately distinguish malignant cells from healthy ones, giving rise
Transition-state spectroscopy of the photoinduced Ca + CH3F reaction. 3. Reaction following the local excitation to Ca(4s3d 1D). The Ca* + CH3F CaF* + CH3 reaction was studied both experimentally and theoretically. The reaction was photoinduced in Ca路路路CH3F complexes, which were i... E...
We investigated the sequence of Au accumulation considering the coordination structure of Au (Figs.3C,4F–Jand Supplementary Fig.S4) and the differences in electron-density map with the gradual increase of gold precursor concentration. It can be deduced that among Au1, Au2, and Au3 at the 4...
Abstract Photoelectron spectra of the I−⋅CH3I, I−⋅CH3Br, and I−⋅CH2Br2 complexes each display a relatively sharp main feature shifted from that of I− by the expected binding energies of the ion–dipole bound negative ions. We observe narrow photofragmentation bands in both ...