Experimental evidence for the role of the πCO* orbital in electron transfer to gas phase acetic acid CH3CO2H: Effects of molecular orientation

被引:24
作者
Brooks, Philip R. [1 ,2 ]
机构
[1] Rice Univ, Dept Chem, Houston, TX 77251 USA
[2] Rice Univ, Rice Quantum Inst, Houston, TX 77251 USA
基金
美国国家科学基金会;
关键词
atom-molecule collisions; charge exchange; dissociation energies; molecular beams; molecular configurations; organic compounds; potassium; SIMPLE ORGANIC-ACIDS; DNA-STRAND BREAKS; FORMIC-ACID; ORIENTED MOLECULES; PHOTOELECTRON-SPECTROSCOPY; TRANSFER COLLISIONS; BUTYL BROMIDE; ATTACHMENT; HCOOH; NITROMETHANE;
D O I
10.1063/1.3122902
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Electron transfer from K atoms to oriented acetic acid molecules produces acetate ions (and K+) when the CO2H end of the molecule is attacked. The electron enters the pi(*)(CO) orbital and the donor atom distorts the molecule to allow migration to the sigma(*)(OH) orbital, thereby breaking the bond.
引用
收藏
页数:4
相关论文
共 37 条
[1]   Temporary anion states of selected amino acids [J].
Aflatooni, K ;
Hitt, B ;
Gallup, GA ;
Burrow, FD .
JOURNAL OF CHEMICAL PHYSICS, 2001, 115 (14) :6489-6494
[2]   Study of resonances in formic acid by means of vibrational excitation by slow electrons [J].
Allan, Michael .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2006, 39 (14) :2939-2947
[3]   Electron collisions with formic acid monomer and dimer [J].
Allan, Michael .
PHYSICAL REVIEW LETTERS, 2007, 98 (12)
[4]  
Boudaïffa B, 2000, SCIENCE, V287, P1658, DOI 10.1126/science.287.5458.1658
[5]   Steric effects in electron transfer from potassium to π-bonded oriented molecules CH3CN, CH3NC, and CCl3CN [J].
Brooks, Philip R. ;
Harland, Peter W. ;
Harris, Sean A. ;
Kennair, Terry ;
Redden, Crystal ;
Tate, Jack F. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (50) :15572-15580
[6]   Electron transfer from sodium to oriented nitromethane, CH3NO2:: Probing the spatial extent of unoccupied orbitals [J].
Brooks, PR ;
Harland, PW ;
Redden, CE .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (14) :4773-4778
[7]   Steric asymmetry in electron transfer from potassium atoms to oriented nitromethane (CH3NO2) molecules [J].
Brooks, PR ;
Harland, PW ;
Redden, CE .
JOURNAL OF PHYSICAL CHEMISTRY A, 2006, 110 (14) :4697-4701
[8]   Frontside versus backside reactivity in electron transfer to oriented tert butyl bromide and methyl bromide [J].
Brooks, PR ;
Harris, SA .
JOURNAL OF CHEMICAL PHYSICS, 2002, 117 (09) :4220-4232
[9]   REACTIONS OF ORIENTED MOLECULES [J].
BROOKS, PR .
SCIENCE, 1976, 193 (4247) :11-16
[10]   IDEAL-GAS THERMODYNAMIC PROPERTIES OF METHANOIC AND ETHANOIC ACIDS [J].
CHAO, J ;
ZWOLINSKI, BJ .
JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 1978, 7 (01) :363-377