18459-37-5Relevant academic research and scientific papers
Charge transfer cross sections for Hg+, Xe+, and Cs+ in collision with various metals and carbon
Rutherford, J.A.,Vroom, D.A.
, p. 434 - 441 (1981)
Cross sections for charge transfer between Hg+, Xe+, and Cs+ and the atomic species Fe, Mo, Al, Ti, Ta, and C have been measured in the ion energy range from 1 to 5000 eV.In general, the cross sections for charge transfer
Cs+ reactive scattering from a Si(111) surface adsorbed with water
Yang,Hwang,Kang
, p. 2611 - 2618 (1997)
Reactive scattering of hyperthermal Cs ion is examined from a Si(111) surface adsorbed with water. Collision of Cs+ beams with the Si surface at the energy of 10-100 eV produces Cs+-bound cluster ions as scattering products, including CsOH+, CsOH2+, CsSi+, CsSiHn+ (n = 1,2), and CsSiO+. The yields for these clusters are examined as a function of Cs+ beam energy and water exposure. Kinetic energy distributions for the clusters are measured. The reactive scattering process is explained in terms of collision-induced desorption of adsorbate, followed by ion-molecule association between the scattered Cs+ and the desorbed molecule. The probability that Cs+ undergoes reactive scattering is 5 × 10-4-2×10-3 for 50 eV collision energy. The corresponding probability for the Cs+-molecule association reaction is in the order of 5 × 10-3-2×10-2 or slightly lower. It is proposed that CsOH+ and CsOH2+ are formed from OH and H2O adsorbates, respectively, via direct collisional desorption. CsSiO+ formation can be related to desorption of surface oxide species or, at high energy, to collisional dissociation of adsorbates. Several aspects of using Cs+ reactive scattering for surface adsorbate detection are discussed.
Cyanometalate cages with exchangeable terminal ligands
Boyer, Julie L.,Yao, Haijun,Kuhlman, Matthew L.,Rauchfuss, Thomas B.,Wilson, Scott
, p. 2721 - 2728 (2008/02/10)
The coordination chemistry of the unusual metallo-ligand Cs?[CpCo(CN)3]4[Cp*Ru]3 (Cs?Co4Ru3) is described with attention to the behavior of the ligand itself, its binding to Lewis-acidic metal cations, and its ability to stabilize catalytically relevant Ru-PPh3 fragments. A series of tests demonstrate that the rim [CpCo(CN)3] - groups in Cs?Co4Ru3 are exchangeable. Upon treatment with [(MeC5H4)Co(CN)3] - (Co′) Cs?Co4Ru3 undergoes vertex exchange to give Cs?Co4-xCo′xRu3. Similarly the cage is degraded by CO. Most convincing, Cs?Co 4Ru3 reacts with PhNH3OTf to precipitate the polymer PhNH3CpCo(CN)3 and form the molecular box [Cs?Co4Ru4]+. Treatment of Cs?Co 4Ru3 with [M(NCMe)x]PF6 (M = Cu, Ag) gave the Lewis acidic cages {Cs?[CpCo(CN)3] 4[Cp*Ru]3M(NCMe)}PF6, which reacted with tertiary phosphane ligands to give adducts [Cs?Co4Ru 3M(PPh3)]PF6. Lewis acidic octahedral vertices were installed using Fe, Ni, and Ru reagents. The boxes [Cs?Co 4Ru3M(NCMe)3]2+ (M = Ni, Fe) formed readily from the reaction Cs?Co4Ru3 with [Ni(NCMe)6](BF4)2 and [Fe(NCMe) 6]-(PF6)2. Displacement of the MeCN ligands gives [Cs?Co4Ru3Ni(9-ane-S3)](BF4) 2. A series of boxes were prepared by the reaction of Cs?Co 4Ru3 and RuCl2(PPh3)3, RuHCl(PPh3)3, and [(C6H6)Ru(NCMe) 3](PF6)2. The derivative of the hydride, [Cs?Co4Ru3Ru(NCMe)(PPh3) 2](PF6)2, was characterized crystallographically. Wiley-VCH Verlag GmbH & Co. KGaA, 2007.
Production of Hydrated Metal Ions by Fast Ion or Atom Beam Sputtering. Collision-Induced Dissociation and Successive Hydration Energies of Gaseous Cu(1+) with 1-4 Water Molecules
Magnera, Thomas F.,David, Donald E.,Stulik, Dusan,Orth, Robert G.,Jonkman, Harry T.,Michl, Josef
, p. 5036 - 5043 (2007/10/02)
Low-temperature sputtering of frozen aqueous solutions of metal salts, of hydrated crystalline transition-metal salts, of frosted metal surfaces, and of frosted metal salts with kiloelectronovolt energy rare gas atoms or ions produces copious amounts of cluster ions, among which M(1+)(H2O)n and/or M(1+)OH(H2O)n frequently dominate.Variable-energy collision-induced dissociation of these ions in a triple quadrupole mass spectrometer yields the successive gas-phase solvation energies.Several known hydration and bond energies have been reproduced, and the first and secondhydration energies of the Cu(1+) ion have been determined as 35 +/- 3 and 39 +/- 3 kcal/mol, respectively.It is concluded that gaseous Cu(1+) prefers dicoordination.
Collisional dissociation and chemical relaxation of alkali halide molecules: 2000-4200 K
Milstein, Richard,Berry, R. Stephen
, p. 6025 - 6037 (2007/10/02)
Shock-induced dissociation and the subsequent chemical relaxation processes of diatomic alkali halide molecules have been studied by time-resolved absorption spectrometry of alkali atoms, halide ions, and alkali halide molecules.The salts studied in detai
The reaction of fluorosulfuryl isocyanate with alkali metal fluorides
Roderiguez, Joseph A.,Noftle, Ronald E.
, p. 1874 - 1877 (2008/10/08)
Fluorosulfuryl isocyanate reacts with cesium, potassium, and sodium fluorides in acetonitrile solvent at 25° to form stable, solid adducts having a molar ratio FSO2NCO: MF close to 1:1. Chemical and physical evidence indicates that these compounds may be formulated as the salts of fluoroformylfluorosulfurylimide, M+[N(SO2F)C(O)F]-.
