Spin Chemistry Lab

Interactive simulations for exploring spin-correlated radical pairs, spin dynamics, and magnetic-field effects in chemical reaction mechanisms.

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From spin motion to reaction outcomes

The modules connect simple spin-state pictures, radical-pair Hamiltonians, and kinetic reaction schemes so students can see how microscopic spin evolution becomes an observable magnetic-field effect.

Radical pairs Magnetic field effects Reaction kinetics

Self-contained browser simulations

Each launcher opens a dedicated full-screen applet. They are designed for live teaching, independent exploration, and quick parameter experiments without a separate installation step.

Single-file applets Interactive controls Classroom friendly
Spin basics

Spin State Visualization Suite

Explore Hilbert-space phasors, Bloch-sphere motion, density matrices, and the Bloch ball. This is the introductory suite for building intuition about spin states and coherent evolution.

Topics: spin-1/2 states, density matrices Mode: interactive 2D/3D views
Launch suite →
Radical pairs

Radical Pair Suite

Follow singlet-triplet mixing, density-matrix evolution, transient kinetics, and MARY curves for a simple radical-pair model with field, hyperfine, exchange, and recombination controls.

Topics: S-T mixing, MARY curves Mode: multi-tab mechanism suite
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Kinetics

Radical Pair Kinetic Simulator

Adjust rate constants in a relaxation-model reaction scheme and compare field-on and field-off transient signals. The simulator links reaction pathways directly to observable magnetic-field effects.

Topics: rate models, ΔΔsig transients Mode: sliders and live plots
Launch simulator →