Photochemistry of Transition-Metal Atoms: Reactions with Molecular Hydrogen and Methane in Low-Temperature Matrices

1986 ◽  
Vol 25 (12) ◽  
pp. 1072-1085 ◽  
Author(s):  
Geoffrey A. Ozin ◽  
John G. McCaffrey ◽  
J. Mark Parnis
Keyword(s):  
Low Temperature ◽  
Transition Metal ◽  
Molecular Hydrogen ◽  
Metal Atoms ◽  
Transition Metal Atoms

Étude magnétique des matériaux de type Ln2M12P7 (Ln = Ce, Sm, Gd et Er; M = Co et Fe)

2000 ◽  
Vol 78 (2) ◽  
pp. 153-159
Author(s):  
J Dhahri ◽  
N Fourati ◽  
E Dhahri
Keyword(s):  
Magnetic Susceptibility ◽  
Low Temperature ◽  
Transition Metal ◽  
Constant Field ◽  
Free Ions ◽  
Metal Atoms ◽  
Transition Metal Atoms ◽  
Saturation Moment ◽  
Zero Moment ◽  
Good Agreement

A magnetic study has been undertaken on the substances of formula Ln2M12X7. The magnetic susceptibility and the magnetization have been measured as a function of temperature for a constant field. The magnetic susceptibility measurements have been performed from ambient temperature up to 1000 K. The effective paramagnetic moments were deduced from 1 / χ = f(T) curves, assuming a zero moment on the transition metal atoms. It is shown that these values are in good agreement with the theoretical values calculated for the free ions Ln3+. The saturation moment and the paramagnetic Curie temperature values show an antiferromagnetic behavior for Ce2Co12P7 at low temperature. The magnetic moment of Sm2Co12P7 measured at 4.2 and 78 K under a 2.66 T magnetic field shows a complex magnetic structure at low temperature. Our work on these materials show that the magnetic properties of Ln2M12X7 could be interpreted from previous studies on the phases rare earth – transition metal Ln–M.

Laser Desorption/Ionization of Transition Metal Atoms and Oxides from Solid Argon

2000 ◽  
Vol 104 (35) ◽  
pp. 8173-8177 ◽  
Author(s):  
Lester Andrews ◽  
Andreas Rohrbacher ◽  
Christopher M. Laperle ◽  
Robert E. Continetti
Keyword(s):  
Transition Metal ◽  
Laser Desorption ◽  
Laser Desorption Ionization ◽  
Desorption Ionization ◽  
Metal Atoms ◽  
Transition Metal Atoms ◽  
Solid Argon

Interaction of cyclosporin A molecules with alkali and transition metal atoms on Cu(111)

2021 ◽  
Vol 57 (23) ◽  
pp. 2923-2926
Author(s):  
Yuanyuan Guo ◽  
Li Jiang ◽  
Ari Paavo Seitsonen ◽  
Bodong Zhang ◽  
Joachim Reichert ◽  
...  
Keyword(s):  
Transition Metal ◽  
Cyclosporin A ◽  
Surface Complexation ◽  
Metal Atoms ◽  
Transition Metal Atoms ◽  
Natural Peptide

Discriminatory on-surface complexation by the natural peptide CsA: up to two K atoms within its macrocycle, Co to residue 9 and the macrocycle, Fe non-selectively.

Sign in / Sign up

Export Citation Format

Share Document