Fragmentations of protonated arginine, lysine and their methylated derivatives: Concomitant losses of carbon monoxide or carbon dioxide and an amine

Shek  PYI; Zhao  J; Ke  YSiu  KWMHopkinson  AC

首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Fragmentations of protonated arginine, lysine and their methylated derivatives: Concomitant losses of carbon monoxide or carbon dioxide and an amine

【24h】

Fragmentations of protonated arginine, lysine and their methylated derivatives: Concomitant losses of carbon monoxide or carbon dioxide and an amine

机译：

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

The fragmentation pathways of protonated arginine, protonated N-alpha, N-alpha-dimethylarginine, the N-alpha, N-alpha, N-alpha-trimethylarginine ion, three protonated N-is an element of, N-is an element of-dimethyllysines, and three permanent lysine ions in which the charge is fixed by trimethylation are reported. Ion assignment was facilitated by N-15-labeling and deuterium substitution. The chemistries are dominated by charge-induced elimination of the amino groups as neutrals, including dimethylamine, trimethylamine and guanidine. Competitive losses of the alpha-amino and side- chain amino groups were observed; these losses led to intermediates that had different structures and different subsequent dissociation reactions. Concomitant losses of CO or CO2 with these amines were also commonly observed. However, the ionic products of amine losses did not subsequently lose CO or CO2, suggesting strongly that in these concomitant eliminations, it is the CO or CO2 that was first eliminated, followed immediately by the loss of the amine. Results of density functional theory calculations on protonated arginine and protonated N-alpha,N-alpha-dimethylarginine reveal that, in such concomitant eliminations, the dissociating complex is vibrationally hot and the intermediate ion formed by losing CO or CO2 can immediately dissociate to eliminate the amine.

著录项

来源
《The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory》 |2006年第27期|8282-8296|共15页
作者
Shek PYI; Zhao J; Ke YSiu KWMHopkinson AC;
展开▼
作者单位

York Univ, Dept Chem, Toronto, ON M3J 1P3, Canada;

York Univ, Ctr Res Spectrometry, Toronto, ON M3J 1P3, Canada;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类物理化学（理论化学）、化学物理学;
关键词
COLLISION-INDUCED DISSOCIATION; SURFACE-INDUCED DISSOCIATION; MASS-SPECTROMETRY; PEPTIDE IONS; GAS-PHASE; CORRELATION-ENERGY; SPECTRA; DECOMPOSITION; MECHANISMS; MODEL;

相似文献

外文文献
中文文献
专利

1. Complexes in polymers III: Addition reactions oftrans‐Ir(PPh3)2(CO)Cl embedded in polystyrene with hydrogen, oxygen, sulfur dioxide, carbon monoxide and gaseous iodine and of (η‐C5H5)Ru(η4‐1,5‐cyclooctadiene)Cl in polystyrene with carbon monoxide [J] . Alan Shaver, Jian Ping Gao, Ian S Butler applied organometallic chemistry . 1989,第5期

机译：Complexes in polymers III: Addition reactions oftrans‐Ir(PPh3)2(CO)Cl embedded in polystyrene with hydrogen, oxygen, sulfur dioxide, carbon monoxide and gaseous iodine and of (η‐C5H5)Ru(η4‐1,5‐cyclooctadiene)Cl in polystyrene with carbon monoxide
2. Emission factors of fine particulate matter, organic and elemental carbon, carbon monoxide, and carbon dioxide for four solid fuels commonly used in residential heating by the US Navajo Nation [J] . Champion Wyatt M., Connors Lea, Montoya Lupita D. Journal of the Air & Waste Management Association . 2017,第9期

机译：Emission factors of fine particulate matter, organic and elemental carbon, carbon monoxide, and carbon dioxide for four solid fuels commonly used in residential heating by the US Navajo Nation
3. ChemInform Abstract: Synthetic Methods and Reactions. Part 163. Effective and Mild Ionic Hydrogenation of Carbon Monoxide, Carbon Dioxide, Methyl Alcohol, Formic Acid, Carbonyl Sulfide, and Carbon Disulfide to Methane with Sodium Borohydride/Trifluoromethanesulfonic (Triflic) Acid. [J] . G. A. OLAH, A. WU Chem Inform . 1991,第11期

机译：ChemInform Abstract: Synthetic Methods and Reactions. Part 163. Effective and Mild Ionic Hydrogenation of Carbon Monoxide, Carbon Dioxide, Methyl Alcohol, Formic Acid, Carbonyl Sulfide, and Carbon Disulfide to Methane with Sodium Borohydride/Trifluoromethanesulfonic (Triflic) Acid.
4. Carbon Felt Coated with Titanium Dioxide/Carbon Black Composite as Negative Electrode for Vanadium Redox Flow Battery [O] . Tseng T.-M., Huang R.-H., Huang C.-Y., 2015

机译：Carbon Felt Coated with Titanium Dioxide/Carbon Black Composite as Negative Electrode for Vanadium Redox Flow Battery

Fragmentations of protonated arginine, lysine and their methylated derivatives: Concomitant losses of carbon monoxide or carbon dioxide and an amine

摘要

著录项

相似文献

相关主题

期刊订阅