// multi-utility computation suite · offline · instant · precise
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sci.Marcus-electron-transfer Calculator
Calculates electron transfer rate k_ET = (2π/ℏ)|H_DA|² × FCWD using Marcus theory, from reorganisation energy λ and driving force ΔG°. The Marcus inverted region (−ΔG° > λ) predicts slower rates at larger driving force — confirmed by Miller et al. (1984) and foundational to photosynthesis efficiency and organic solar cells.
Inputs
Lambda Ev
Capacity to do work (J or kWh). Conserved — converts between forms but total stays constant in a closed system.
Delta G Ev
Capacity to do work (J or kWh). Conserved — converts between forms but total stays constant in a closed system.
V Coupling Ev
Reference formula or conversion factor shown for context.
T K
Thermal state of the substance. Check whether the formula needs Celsius, Fahrenheit, or Kelvin (K = °C + 273.15).
Results
activation energy Ea (eV)
The value at the specified point or condition.
ET rate k_ET (s⁻¹)
The value at the specified point or condition.
Marcus inverted region?
Sample size or count used in the calculation.
optimum ΔG° for max rate
The value at the specified point or condition.
k_ET ∝ exp(-(λ+ΔG°)²/4λkT)
Reference formula or conversion factor shown for context.
application
Recommended use case or application for this configuration or result.