molspecutils.molecule.C2H2AlchemyMode

class C2H2AlchemyMode(engine_or_path=None, iso=1)

Bases: molspecutils.molecule.AlchemyModeMixin

__init__(engine_or_path=None, iso=1)

Provide transition and energy level data for C2H2 nu1+nu3 mode.

Parameters

• engine_or_path – Path to directory with HAPI or sqlite3 database or sqlachemy.Engine instance of opened sqlite3 database.

• iso – Isotopologue number. Required for fetching data and calculating appropriate total partition function.

Methods

__init__([engine_or_path, iso])	Provide transition and energy level data for C2H2 nu1+nu3 mode.
degeneracy(state)	Return quantum state degeneracy.
delta(pair)	Pressure shift coefficient for pair molecular coherence.
difference_pop(pair, T)	Population difference factor between nondegenerate states.
energy(state)	Return energy of state.
equilibrium_pop(state, T)
gamma(pair)	Pressure broadening coefficient for pair molecular coherence.
line_params(pair)
mu(pair)	Reduced matrix element for pair[0] to pair[1] transition.
nu(pair)
sw(pair)	HITRAN line strength in cm-1 cm**2.
tips(T)	Total internal partition function.

Attributes

molecule