Potassium


general data NMR parameters help

general data

atomic number: 19 atomic weight: 39,0983 oxydation number: 1
electronic configuration:
(Ar)4s1
[Picture] [Picture] 1.ionisation energy: 419
electron affinity: -49 electronegativitiy: 0,82 atomic radius: 2,77
covalent radius: 2,02 ionic radius: 1,33 electric conductivity 14.3
crystal structure: cubic, room_centered melting point: 336,95 K boiling point: 1032 K
density: 1,53 specific warmth capability: 0,75


NMR data


Isotope 39 Spin quantum number I 3/2
natural abundance (%) 93.2581 absolute sensitivity 4.75*10-4
Magnetic moment 0.50543376 Magnetogyric ratio 1.2500608
Quadrupole moment (Q/fm2 5.85 Line-width factor (/fm4 46
NMR frequency (7,05 T) 14.004MHz Frequency ratio 4.666373
Reference compound KCl Sample Conditions D2O,0.1M
relative receptivity DP 4.76*10-4 relative receptivity DC 2.79

Isotope 40 Spin quantum number I 4
natural abundance (%) 0.0117 absolute sensitivity
Magnetic moment -1.4513203 Magnetogyric ratio -1.5542854
Quadrupole moment (Q/fm2 -7.3 Line-width factor (/fm4 5.2
NMR frequency (7,05 T)
Frequency ratio 5.802018
Reference compound KCl Sample Conditions D2O,0.1M
relative receptivity DP 6.12*10-7 relative receptivity DC 3.59*10-3


Isotope 41 Spin quantum number I 3/2
natural abundance (%) 6.7302 absolute sensitivity 5.78*10-6
Magnetic moment 0.27739609 Magnetogyric ratio 0.68606808
Quadrupole moment (Q/fm2 7.11 Line-width factor (/fm4 67
NMR frequency (7,05 T) 7.686MHz Frequency ratio 2.561305
Reference compound KCl Sample Conditions D2O,0.1M
relative receptivity DP 5.68*10-6 relative receptivity DC 3.33*10-2