Mass selective anion-ZEKE spectroscopy of the iodine-water cluster

Zero energy kinetic electron and mass analyzed threshold ionization spectroscopy of Na⋅(NH3)n (n=1, 2, and 4) complexes

“…To our knowledge, this is the first vibrationally resolved experimental spectrum of complexes with two or more polar molecules. [40][41][42][43][44] The ZEKE spectrum of Na•͑NH 3 ) 4 is structureless, contradictive to our expectation based on ab initio calculations 23 and a previous experiment using PIE spectroscopy. 41 The high internal temperature of the cluster and the high density of states are the most likely reasons for the lack of sharp spectroscopic features.…”

“…[40][41][42][43][44] From the photoionization efficiency ͑PIE͒ spectra of Na•͑NH 3 ) n with nϭ1 -18, 32, 41 Schulz's group reported that the ionization threshold decreases rapidly with increasing solvation number until n ϭ4, then it drops down slowly to the bulk value. This behavior is quite different from that of Na•͑H 2 O) n where the ionization potential ͑IP͒ drops from nϭ1 to 4 and then becomes constant for all nу4.…”

Chemical Applications of Zero Kinetic Energy (ZEKE) Photoelectron Spectroscopy

“…[64] Bässman et al [158] constructed a high-resolution ZEKE spectrometer for anions (resolution 1.5 cm…”

Anwendungen der Zero-Kinetic-Energy(ZEKE)-Photoelektronenspektroskopie in der Chemie

“…Bäûmann et al [158] konstruierten ein Hochauflösungs-Spektrometer für Anionen (Auflösung 1.5 cm À1 ), mit dem sie Spektren des I À -H 2 O-Clusters erhielten. Diese Spektren werden von zwei niederfrequenten Moden bei 45 cm À1 und 210 cm À1 dominiert, die der I-H 2 O-Streckschwingung und der In-plane-Biegeschwingung zugeordnet wurden.…”