Laporte Rule ·
Why d–d Bands Are Faint
un
seel
.com · parity g↔u · ΔS = 0 · centrosymmetric complexes
ε (L·mol⁻¹·cm⁻¹)
0.02
Transition
d–d
State
—
d orbitals — gerade (g)
dipole operator μ — ungerade (u)
forbidden / faint
allowed / intense
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.com · Laporte and Spin Selection Rules