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Morphogen Chemistry Domain Specification

Version: 1.0 Status: Proposed Date: 2025-11-15


Overview

This document specifies the Chemistry and Chemical Engineering domain for Morphogen. It defines eight sub-domains covering molecular simulation, reaction kinetics, quantum chemistry, transport phenomena, multiphase systems, thermodynamics, catalysis, and electrochemistry.

The chemistry domain leverages Morphogen's existing infrastructure:

  • Operator graph paradigm to wrap external solvers
  • Field operators for PDEs (diffusion, advection, reaction)
  • Agent operators for particle-based methods
  • Optimization domain for design discovery
  • ML domain for surrogate models and inverse design
  • Visualization domain for molecules, orbitals, and fields

Table of Contents

  1. Molecular Domain
  2. Reaction Kinetics Domain
  3. Quantum Chemistry Domain
  4. Transport Phenomena Domain
  5. Multiphase Domain
  6. Thermodynamics Domain
  7. Catalysis Domain
  8. Electrochemistry Domain

1. Molecular Domain

Purpose

Represent, manipulate, and analyze molecular structures. Perform classical molecular mechanics calculations, molecular dynamics simulations, and conformer generation.

Types

struct Molecule {
    atoms: Vec<Atom>,
    bonds: Vec<Bond>,
    positions: Field<Vec3<f32 [Angstrom]>>,
    velocities: Field<Vec3<f32 [Angstrom/fs]>>,
    forces: Field<Vec3<f32 [kcal/(mol·Angstrom)]>>,
    masses: Field<f32 [amu]>,
    charges: Field<f32 [e]>
}

struct Atom {
    element: String,
    atomic_number: u32,
    mass: f32 [amu],
    charge: f32 [e]
}

struct Bond {
    atom1: u32,
    atom2: u32,
    order: f32  # 1.0=single, 2.0=double, 1.5=aromatic
}

struct Trajectory {
    frames: Vec<Molecule>,
    times: Vec<f32 [fs]>,
    energies: Vec<f32 [kcal/mol]>
}

struct ForceField {
    name: String,  # "amber", "charmm", "uff", "gaff"
    parameters: Map<String, f32>
}

Operators

1.1 Loading & Conversion

# Load from various formats
molecule = molecular.load_smiles("CCO")  # SMILES string
molecule = molecular.load_pdb("protein.pdb")  # PDB file
molecule = molecular.load_xyz("structure.xyz")  # XYZ file
molecule = molecular.load_mol2("ligand.mol2")  # MOL2 file
molecule = molecular.load_sdf("database.sdf")  # SDF file

# Convert between formats
smiles = molecular.to_smiles(molecule)
pdb = molecular.to_pdb(molecule)
xyz = molecular.to_xyz(molecule)

# Generate 3D coordinates from 2D
molecule = molecular.generate_3d(molecule, force_field="uff")

1.2 Molecular Properties

# Basic properties
mw = molecular.molecular_weight(molecule) -> f32 [g/mol]
formula = molecular.molecular_formula(molecule) -> String
charge = molecular.total_charge(molecule) -> f32 [e]
multiplicity = molecular.spin_multiplicity(molecule) -> u32

# Geometric properties
com = molecular.center_of_mass(molecule) -> Vec3<f32 [Angstrom]>
moi = molecular.moment_of_inertia(molecule) -> Mat3<f32 [amu·Angstrom²]>
rg = molecular.radius_of_gyration(molecule) -> f32 [Angstrom]

# Electronic properties
dipole = molecular.dipole_moment(molecule) -> Vec3<f32 [Debye]>
polarizability = molecular.polarizability(molecule) -> f32 [Angstrom³]

# Topological properties
rings = molecular.find_rings(molecule) -> Vec<Vec<u32>>
aromaticity = molecular.is_aromatic(molecule, ring_id) -> bool
hbond_donors = molecular.count_hbond_donors(molecule) -> u32
hbond_acceptors = molecular.count_hbond_acceptors(molecule) -> u32

1.3 Force Field Calculations

# Energy calculation
energy = molecular.compute_energy(
    molecule,
    force_field="amber",  # "amber", "charmm", "uff", "gaff", "oplsaa"
    include_terms=["bond", "angle", "dihedral", "vdw", "electrostatic"]
) -> f32 [kcal/mol]

# Force calculation
forces = molecular.compute_forces(
    molecule,
    force_field="amber"
) -> Field<Vec3<f32 [kcal/(mol·Angstrom)]>>

# Energy components
bond_energy = molecular.bond_energy(molecule, force_field)
angle_energy = molecular.angle_energy(molecule, force_field)
dihedral_energy = molecular.dihedral_energy(molecule, force_field)
vdw_energy = molecular.vdw_energy(molecule, force_field)
electrostatic = molecular.electrostatic_energy(molecule, force_field)

1.4 Geometry Optimization

# Minimize energy
molecule_opt = molecular.optimize_geometry(
    molecule,
    force_field="uff",
    method="bfgs",  # "steepest_descent", "bfgs", "conjugate_gradient"
    max_iterations=1000,
    convergence=1e-6 [kcal/(mol·Angstrom)]
)

# Constrained optimization
molecule_opt = molecular.optimize_constrained(
    molecule,
    force_field="amber",
    constraints=[
        molecular.fix_atom(0),  # Fix atom 0
        molecular.fix_distance(1, 2, 1.5 [Angstrom])  # Fix bond length
    ]
)

1.5 Conformer Generation

# Generate conformers
conformers = molecular.generate_conformers(
    molecule,
    n=100,
    method="rdkit",  # "rdkit", "omega", "random"
    energy_window=10.0 [kcal/mol],
    rms_threshold=0.5 [Angstrom]
) -> Vec<Molecule>

# Cluster conformers
clusters = molecular.cluster_conformers(
    conformers,
    method="rmsd",
    threshold=1.0 [Angstrom]
)

1.6 Molecular Dynamics

# Neighbor list (for efficient force calculation)
neighbors = molecular.compute_neighbor_list(
    molecule,
    cutoff=10.0 [Angstrom],
    method="cell_list"  # "cell_list", "verlet_list", "naive"
)

# MD integrators
positions_new = molecular.velocity_verlet(
    positions,
    velocities,
    forces,
    masses,
    dt=1.0 [fs]
)

positions_new, velocities_new = molecular.langevin_integrator(
    positions,
    velocities,
    forces,
    masses,
    temp=300.0 [K],
    friction=1.0 [1/ps],
    dt=1.0 [fs]
)

# Thermostats
velocities = molecular.berendsen_thermostat(velocities, masses, temp_target=300.0 [K], tau=0.1 [ps])
velocities = molecular.nose_hoover_thermostat(velocities, masses, temp_target=300.0 [K], Q=1.0)

# Barostats
positions, box = molecular.berendsen_barostat(positions, box, pressure_target=1.0 [atm], tau=1.0 [ps])

# Run MD simulation
trajectory = molecular.md_simulate(
    molecule,
    force_field="amber",
    temp=300.0 [K],
    pressure=1.0 [atm],
    time=10.0 [ns],
    dt=2.0 [fs],
    ensemble="npt",  # "nve", "nvt", "npt"
    thermostat="nose_hoover",
    barostat="berendsen"
)

1.7 Trajectory Analysis

# RMSD
rmsd = molecular.rmsd(molecule1, molecule2, align=true) -> f32 [Angstrom]
rmsd_traj = molecular.rmsd_trajectory(trajectory, reference=trajectory.frames[0])

# RMSF (root-mean-square fluctuation)
rmsf = molecular.rmsf(trajectory) -> Field<f32 [Angstrom]>

# Diffusion coefficient
D = molecular.diffusion_coefficient(trajectory) -> f32 [cm²/s]

# Radial distribution function
g_r = molecular.rdf(trajectory, atom_type_1="O", atom_type_2="H", r_max=10.0 [Angstrom])

# Hydrogen bonds
hbonds = molecular.hydrogen_bonds(trajectory, donor_acceptor_distance=3.5 [Angstrom], angle_cutoff=30.0 [deg])

2. Reaction Kinetics Domain

Purpose

Model chemical reaction rates, reactor behavior, and reaction networks.

Types

struct Reaction {
    reactants: Map<String, f32>,  # species -> stoichiometry
    products: Map<String, f32>,
    rate_law: RateLaw,
    reversible: bool
}

enum RateLaw {
    Arrhenius(A: f32, Ea: f32 [J/mol]),
    ModifiedArrhenius(A: f32, n: f32, Ea: f32 [J/mol]),
    Custom(fn(conc: Map<String, f32>, temp: f32) -> f32)
}

struct Reactor {
    type: ReactorType,
    volume: f32 [m³],
    temp: f32 [K],
    pressure: f32 [Pa]
}

enum ReactorType {
    Batch,
    CSTR,
    PFR,
    PBR  # Packed bed reactor
}

Operators

2.1 Rate Laws

# Arrhenius kinetics
k = kinetics.arrhenius(
    temp=350.0 [K],
    A=1e6 [1/s],
    Ea=50000.0 [J/mol]
) -> f32 [1/s]

# Modified Arrhenius
k = kinetics.modified_arrhenius(
    temp=350.0 [K],
    A=1e6,
    n=0.5,
    Ea=50000.0 [J/mol]
) -> f32 [1/s]

# Temperature-dependent equilibrium constant
K_eq = kinetics.vant_hoff(
    temp=350.0 [K],
    delta_H=-50000.0 [J/mol],
    delta_S=-100.0 [J/(mol·K)]
)

2.2 Reaction Networks

# Define reaction network
reactions = [
    kinetics.reaction(
        reactants={"A": 1.0},
        products={"B": 1.0},
        rate_law=kinetics.arrhenius(A=1e6, Ea=50000.0)
    ),
    kinetics.reaction(
        reactants={"B": 1.0, "C": 1.0},
        products={"D": 1.0},
        rate_law=kinetics.arrhenius(A=1e8, Ea=60000.0)
    )
]

# Compute reaction rates
rates = kinetics.reaction_rates(
    conc={"A": 1.0 [mol/L], "B": 0.5 [mol/L], "C": 0.3 [mol/L]},
    temp=350.0 [K],
    reactions=reactions
) -> Map<String, f32 [mol/(L·s)]>

# Time evolution (ODE integration)
conc_new = kinetics.integrate_ode(
    conc_initial={"A": 1.0, "B": 0.0, "C": 1.0, "D": 0.0},
    reactions=reactions,
    temp=350.0 [K],
    time=3600.0 [s],
    method="bdf"  # "euler", "rk4", "bdf", "lsoda"
)

2.3 Ideal Reactors

# Batch reactor
result = kinetics.batch_reactor(
    initial_conc={"A": 1.0 [mol/L]},
    reactions=reactions,
    temp=350.0 [K],
    time=3600.0 [s]
) -> Map<String, f32 [mol/L]>

# CSTR (continuous stirred-tank reactor)
result = kinetics.cstr(
    feed_conc={"A": 1.0 [mol/L]},
    feed_flow=0.1 [L/s],
    volume=10.0 [L],
    reactions=reactions,
    temp=350.0 [K]
) -> Map<String, f32 [mol/L]>

# PFR (plug flow reactor)
conc_profile = kinetics.pfr(
    feed_conc={"A": 1.0 [mol/L]},
    reactions=reactions,
    length=10.0 [m],
    area=0.01 [m²],
    flow_velocity=1.0 [m/s],
    temp=350.0 [K]
) -> Field1D<Map<String, f32 [mol/L]>>

2.4 Non-Ideal Reactors

# Mass-transfer-limited reaction
k_eff = kinetics.mass_transfer_limited(
    k_intrinsic=1e6 [1/s],
    k_mass_transfer=1e3 [1/s]
) -> f32 [1/s]

# Dispersion in PFR
conc_profile = kinetics.pfr_with_dispersion(
    feed_conc={"A": 1.0 [mol/L]},
    reactions=reactions,
    length=10.0 [m],
    velocity=1.0 [m/s],
    dispersion_coeff=0.01 [m²/s]
)

3. Quantum Chemistry Domain

Purpose

Interface with quantum chemistry codes (DFT, ab initio) and ML surrogate models.

Operators

3.1 DFT Calculations

# Single-point energy
energy = qchem.dft_energy(
    molecule,
    method="B3LYP",  # "B3LYP", "PBE", "M06-2X", "wB97X-D"
    basis="6-31G*",  # "sto-3g", "6-31G*", "def2-TZVP", "cc-pVTZ"
    code="orca"  # "orca", "psi4", "gaussian", "qchem"
) -> f32 [Hartree]

# Geometry optimization
molecule_opt, energy = qchem.dft_optimize(
    molecule,
    method="B3LYP",
    basis="6-31G*",
    code="orca"
)

# Forces (gradient)
forces = qchem.dft_forces(
    molecule,
    method="B3LYP",
    basis="6-31G*"
) -> Field<Vec3<f32 [Hartree/Bohr]>>

# Frequency calculation
frequencies = qchem.dft_frequencies(
    molecule,
    method="B3LYP",
    basis="6-31G*"
) -> Vec<f32 [cm⁻¹]>

# Transition state search
ts_molecule, energy = qchem.find_transition_state(
    reactant,
    product,
    method="B3LYP",
    basis="6-31G*"
)

3.2 Semi-Empirical Methods

# Faster, less accurate methods
energy = qchem.semi_empirical(
    molecule,
    method="PM7"  # "PM3", "PM6", "PM7", "AM1"
) -> f32 [kcal/mol]

3.3 ML Potential Energy Surfaces

# Predict energy with neural network
energy = qchem.ml_pes(
    molecule,
    model="SchNet"  # "SchNet", "MPNN", "DimeNet", "PaiNN"
) -> f32 [kcal/mol]

# Predict forces
forces = qchem.ml_forces(
    molecule,
    model="SchNet"
) -> Field<Vec3<f32 [kcal/(mol·Angstrom)]>>

# Train ML PES from data
model = qchem.train_pes(
    training_data=[
        (molecule1, energy1),
        (molecule2, energy2),
        ...
    ],
    architecture="SchNet",
    epochs=1000,
    learning_rate=1e-4
)

4. Transport Phenomena Domain

Purpose

Heat transfer, mass diffusion, convection, and porous media transport.

Operators

4.1 Heat Transfer

# Conduction (Fourier's law)
q = transport.conduction(
    temp_gradient=10.0 [K/m],
    thermal_conductivity=50.0 [W/(m·K)],
    area=0.1 [m²]
) -> f32 [W]

# Convection (Newton's law of cooling)
q = transport.convection(
    temp_surface=350.0 [K],
    temp_bulk=300.0 [K],
    h=100.0 [W/(m²·K)],  # Heat transfer coefficient
    area=1.0 [m²]
) -> f32 [W]

# Radiation (Stefan-Boltzmann)
q = transport.radiation(
    temp_surface=500.0 [K],
    temp_ambient=300.0 [K],
    emissivity=0.8,
    area=1.0 [m²]
) -> f32 [W]

# Heat transfer coefficient correlations
h = transport.nusselt_correlation(
    Re=10000.0,  # Reynolds number
    Pr=0.7,  # Prandtl number
    geometry="pipe"
) -> f32 [W/(m²·K)]

4.2 Mass Transfer

# Fickian diffusion
flux = transport.fickian_diffusion(
    conc_gradient=0.1 [mol/(m³·m)],
    diffusivity=1e-9 [m²/s],
    area=0.01 [m²]
) -> f32 [mol/s]

# Knudsen diffusion (in pores)
D_knudsen = transport.knudsen_diffusion(
    pore_diameter=10.0 [nm],
    temp=300.0 [K],
    molecular_weight=28.0 [g/mol]
) -> f32 [m²/s]

# Convective mass transfer
flux = transport.convective_mass_transfer(
    conc_bulk=1.0 [mol/m³],
    conc_surface=0.5 [mol/m³],
    k_mass=1e-3 [m/s],
    area=0.1 [m²]
) -> f32 [mol/s]

# Mass transfer coefficient
k_L = transport.sherwood_correlation(
    Re=10000.0,
    Sc=1000.0,  # Schmidt number
    geometry="sphere"
) -> f32 [m/s]

4.3 Porous Media

# Effective diffusivity
D_eff = transport.effective_diffusivity(
    D_molecular=1e-9 [m²/s],
    porosity=0.4,
    tortuosity=2.0
) -> f32 [m²/s]

# Darcy flow
velocity = transport.darcy_flow(
    pressure_gradient=1000.0 [Pa/m],
    permeability=1e-12 [m²],
    viscosity=1e-3 [Pa·s]
) -> f32 [m/s]

5. Multiphase Domain

Purpose

Vapor-liquid equilibrium, gas-liquid reactions, multiphase flow.

Operators

5.1 Vapor-Liquid Equilibrium

# Flash calculation
y_vapor, x_liquid = multiphase.vle_flash(
    feed_composition=[0.5, 0.5],
    temp=350.0 [K],
    pressure=1e5 [Pa],
    thermo_model="peng_robinson"  # "ideal", "peng_robinson", "srk"
) -> (Vec<f32>, Vec<f32>)

# Bubble point
temp_bubble = multiphase.bubble_point(
    liquid_composition=[0.5, 0.5],
    pressure=1e5 [Pa]
) -> f32 [K]

# Dew point
temp_dew = multiphase.dew_point(
    vapor_composition=[0.5, 0.5],
    pressure=1e5 [Pa]
) -> f32 [K]

5.2 Gas-Liquid Reactions

# Volumetric mass transfer coefficient
k_L_a = multiphase.volumetric_mass_transfer(
    bubble_diameter=1.0 [mm],
    gas_holdup=0.1,
    diffusivity=1e-9 [m²/s]
) -> f32 [1/s]

# Gas-liquid reaction rate
rate = multiphase.gas_liquid_reaction(
    conc_liquid=0.5 [mol/L],
    pressure_gas=1e5 [Pa],
    k_L_a=10.0 [1/s],
    k_rxn=1e3 [1/s],
    henry_constant=1e-3 [mol/(L·Pa)]
) -> f32 [mol/(L·s)]

6. Thermodynamics Domain

Purpose

Equations of state, activity coefficients, thermodynamic properties.

Operators

# Peng-Robinson EOS
Z = thermo.peng_robinson(
    temp=350.0 [K],
    pressure=10e5 [Pa],
    critical_temp=647.0 [K],
    critical_pressure=220.6e5 [Pa],
    acentric_factor=0.344
) -> f32  # Compressibility factor

# Activity coefficient (UNIFAC, NRTL, Wilson)
gamma = thermo.activity_coefficient(
    composition=[0.5, 0.5],
    temp=350.0 [K],
    model="nrtl",
    parameters=nrtl_params
) -> Vec<f32>

# Heat capacity
Cp = thermo.heat_capacity(
    species="water",
    temp=350.0 [K]
) -> f32 [J/(mol·K)]

# Enthalpy of reaction
delta_H = thermo.enthalpy_of_reaction(
    reactants={"A": 1.0, "B": 1.0},
    products={"C": 1.0},
    temp=298.15 [K]
) -> f32 [J/mol]

7. Catalysis Domain

Purpose

Heterogeneous catalysis, surface reactions, catalyst characterization.

Operators

7.1 Surface Kinetics

# Langmuir-Hinshelwood mechanism
rate = catalysis.langmuir_hinshelwood(
    coverage_A=0.5,
    coverage_B=0.3,
    k_surface=1e6 [1/s]
) -> f32 [mol/(m²·s)]

# Eley-Rideal mechanism
rate = catalysis.eley_rideal(
    coverage_A=0.5,
    pressure_B=1e5 [Pa],
    k_surface=1e6 [mol/(m²·s·Pa)]
) -> f32 [mol/(m²·s)]

# Surface coverage evolution
coverage_new = catalysis.surface_coverage_step(
    coverage,
    r_adsorption=0.1 [1/s],
    r_desorption=0.05 [1/s],
    r_reaction=0.02 [1/s],
    dt=0.1 [s]
)

7.2 Catalyst Characterization

# BET surface area
surface_area = catalysis.bet_surface_area(
    adsorption_isotherm=[...],
    adsorbate="N2"
) -> f32 [m²/g]

# Pore size distribution
psd = catalysis.pore_size_distribution(
    adsorption_isotherm=[...],
    method="bjh"  # "bjh", "dft"
) -> Field1D<f32>

8. Electrochemistry Domain

Purpose

Batteries, fuel cells, electrolysis, corrosion.

Operators

# Butler-Volmer kinetics
i = electrochem.butler_volmer(
    overpotential=0.1 [V],
    i0=1e-3 [A/m²],  # Exchange current density
    alpha=0.5,  # Transfer coefficient
    n=2  # Electrons transferred
) -> f32 [A/m²]

# Nernst equation
E = electrochem.nernst(
    E_standard=0.34 [V],
    conc_oxidized=0.1 [mol/L],
    conc_reduced=0.01 [mol/L],
    n=2,
    temp=298.15 [K]
) -> f32 [V]

# Battery simulation
voltage = electrochem.battery_discharge(
    capacity=3000.0 [mAh],
    current=1.0 [A],
    time=3600.0 [s],
    model="equivalent_circuit"
) -> f32 [V]

Integration with Existing Morphogen Domains

Field Domain (Already Exists)

Chemistry leverages existing field operators for spatially-resolved simulations:

use field, kinetics

# Reaction-diffusion in 3D reactor
@state conc : Field3D<Vec<f32 [mol/m³]>> = initial_conc()
@state temp : Field3D<f32 [K]> = uniform(350.0)

flow(dt=0.1 [s]) {
    # Diffusion
    conc = diffuse(conc, rate=1e-9 [m²/s], dt)

    # Reaction
    reaction_rate = kinetics.arrhenius_field(temp, conc)
    conc = conc - reaction_rate * dt

    # Convection (if velocity field exists)
    conc = advect(conc, velocity_field, dt)
}

Optimization Domain (Already Exists)

Chemistry uses existing optimization operators for design:

use optimization, molecular

# Optimize catalyst structure
best_molecule = optimize.ga(
    objective=catalyst_activity,
    bounds=molecular_parameter_space,
    population=100,
    generations=50
)

# Multi-objective: yield vs. cost vs. toxicity
pareto_front = optimize.nsga2(
    objectives=[
        maximize(yield),
        minimize(cost),
        minimize(toxicity)
    ],
    bounds=reaction_conditions
)

ML Domain (Extend)

Chemistry adds ML operators for surrogate models and generative design:

# Train surrogate model
surrogate = ml.train_surrogate(
    expensive_dft_calculation,
    input_bounds=molecule_space,
    n_samples=1000
)

# Generative design
generator = ml.train_generative(
    molecules=training_set,
    architecture="vae"
)
new_molecules = generator.sample(n=100)

Implementation Phases

Phase 1: Molecular Domain (Months 1-2)

  • ✅ Molecule loading (SMILES, PDB, XYZ)
  • ✅ Basic properties (MW, formula)
  • ✅ Force fields (AMBER, UFF)
  • ✅ MD integrators (Verlet, Langevin)
  • Dependency: RDKit or OpenBabel

Phase 2: Reaction Kinetics Domain (Months 2-3)

  • ✅ Arrhenius kinetics
  • ✅ ODE integration
  • ✅ Ideal reactors (batch, CSTR, PFR)
  • Dependency: SciPy for ODE solvers

Phase 3: Transport Phenomena Domain (Months 3-4)

  • ✅ Heat transfer operators
  • ✅ Mass diffusion
  • ✅ Correlations (Nusselt, Sherwood)
  • Integration with existing field ops

Phase 4: Quantum Chemistry Domain (Months 4-5)

  • ✅ DFT wrappers (ORCA, Psi4)
  • ✅ ML PES (SchNet, DimeNet)
  • Dependency: External QM codes

Phase 5: Multiphase & Thermo (Months 5-6)

  • ✅ VLE flash calculations
  • ✅ Thermodynamic models (PR, SRK)
  • Dependency: Thermo library (CoolProp or custom)

Phase 6: Catalysis & Electrochem (Month 7)

  • ✅ Surface kinetics
  • ✅ Butler-Volmer
  • Advanced applications

Dependencies

External Libraries (Optional)

  • RDKit — Molecular informatics, SMILES parsing
  • OpenBabel — Format conversion
  • Cantera — Reaction kinetics (can wrap or reimplement)
  • CoolProp — Thermodynamic properties
  • ORCA/Psi4/Q-Chem — Quantum chemistry (external executables)
  • SchNet/TorchMD — ML potential energy surfaces

Morphogen Core (Required)

  • Field operators (diffusion, advection, Laplacian)
  • Agent operators (particle systems)
  • Optimization domain (GA, CMA-ES, Bayesian)
  • ML domain (surrogate models, training)
  • Visualization domain (molecules, fields, trajectories)

Examples

Example 1: Catalyst Design with ML

use molecular, qchem, ml, optimization

# Define objective: catalyst activity
fn catalyst_activity(molecule: Molecule) -> f32 {
    # Compute binding energy (expensive DFT)
    binding_energy = qchem.dft_energy(molecule, method="B3LYP", basis="6-31G*")
    # Lower binding energy = better catalyst
    return -binding_energy
}

# Train surrogate model
surrogate = ml.train_surrogate(
    catalyst_activity,
    input_space=molecular_descriptors,
    n_samples=500
)

# Optimize with genetic algorithm
best_catalyst = optimize.ga(
    objective=surrogate,
    population=100,
    generations=50
)

# Validate with real DFT
final_activity = catalyst_activity(best_catalyst)

Example 2: Multiphysics Reactor Simulation

use field, kinetics, transport, visual

@state conc : Field3D<f32 [mol/m³]> = uniform(1.0)
@state temp : Field3D<f32 [K]> = uniform(300.0)
@state velocity : Field3D<Vec3<f32 [m/s]>> = inlet_profile()

flow(dt=0.01 [s], steps=10000) {
    # Fluid flow
    velocity = navier_stokes_step(velocity, temp, dt)

    # Heat transfer
    reaction_heat = kinetics.reaction_heat(conc, temp)
    temp = heat_equation_step(temp, velocity, source=reaction_heat, dt)

    # Mass transfer + reaction
    conc = diffuse(conc, rate=1e-9 [m²/s], dt)
    conc = advect(conc, velocity, dt)
    reaction_rate = kinetics.arrhenius_field(temp, conc)
    conc = conc - reaction_rate * dt

    # Visualize
    output visual.volume_render(temp, palette="fire")
    output visual.isosurface(conc, level=0.5)
}

Status

  • Specification: COMPLETE
  • Implementation: NOT STARTED
  • Dependencies: RDKit, SciPy, optional external QM codes
  • Target: Morphogen v0.9.0+

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Last Updated: 2025-11-15 Version: 1.0