Electron binding to valence and multipole states of molecules: Nitrobenzene, para- and meta-dinitrobenzenes

• DOI: 10.1063/1.479218
• Publication Date: 2002-07-26T12:40:45Z
• Authors: C. Desfrançois; V. Périquet; S. A. Lyapustina; T. P. Lippa; D. W. Robinson; K. H. Bowen; H. Nonaka; R. N. Compton
• Keywords: 02 engineering and technology; 0210 nano-technology

Nitrobenzene anions (NB−) in both valence and dipole bound states are examined using laser (photodetachment) photoelectron Rydberg electron transfer (RET) spectroscopies. Photoelectron spectroscopy of the NB− anion yields a (adiabatic) affinity 1.00±0.01 eV. The reaction rates for charge between atoms cesium xenon high [Cs(ns,nd) Xe(nf )] NB exhibit prominent peak their n-dependencies consistent with formation having an 28 meV. Para-dinitrobenzene (pDNB) has zero moment large quadrupole moment. RET studies pDNB show complex n-dependence. rate pDNB− ions exhibits broad at low n-values second very feature extending to n-values. n is tentatively attributed exchange into state (EAqb=25 meV). absence field-detachment these suggests that if they strongly coupled state. Meta-dinitrobenzene (mDNB) small observation weak but narrow n-value measurement attachment primarily (EAdb=68 meV) which also