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The three-dimensional nuclear arrangement, connectivity, conformation, and electronic organization assigned to a molecular entity.
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This is an authored directed relation from the source endpoint to the target endpoint.
A molecular entity is assigned a structure comprising connectivity, nuclear geometry, conformation, and electronic organization at a stated resolution and time scale.
The target represents a state, property, observable, or state-dependent description associated with the source system or theory.
wp-physics-moleculeiupac-moleculewp-chem-molecular-graphiupac-gold-bookThis is an authored directed relation from the source endpoint to the target endpoint.
Quantum chemistry connects electronic states to equilibrium structures, response properties, spectra, and reaction paths through explicit approximations.
A theory, law, or interaction describes the behavior of the target within a stated regime. The edge detail must state important limits or qualifications.
wp-chem-quantum-chemistryiupac-green-booknist-chemistry-webbookEach relation below starts at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
A Lewis structure records selected connectivity and valence bookkeeping but does not uniquely determine a three-dimensional or quantum structure.
The target is a model, idealization, restricted ansatz, approximation scheme, phenomenological fit, or historical representation used for the source system or theory. It need not have a universal small error parameter and is not thereby a controlled limit or effective theory. The edge label and detail must identify the precise status.
wp-physics-chemical-bondopenstax-chemistry-2eiupac-gold-bookThis is an authored directed relation from the source endpoint to the target endpoint.
A flexible molecular structure can occupy distinct conformations separated by energetic barriers.
The target represents a state, property, observable, or state-dependent description associated with the source system or theory.
wp-physics-chemical-bondopenstax-chemistry-2eiupac-gold-bookThis is an authored directed relation from the source endpoint to the target endpoint.
Geometry is the spatial component of a molecular structure at a specified state or level of averaging.
The target represents a state, property, observable, or state-dependent description associated with the source system or theory.
wp-physics-chemical-bondopenstax-chemistry-2eiupac-gold-bookThis is an authored directed relation from the source endpoint to the target endpoint.
A molecular graph retains constitution while abstracting away coordinates, vibrations, and most electronic structure.
The target is a model, idealization, restricted ansatz, approximation scheme, phenomenological fit, or historical representation used for the source system or theory. It need not have a universal small error parameter and is not thereby a controlled limit or effective theory. The edge label and detail must identify the precise status.
wp-physics-chemical-bondopenstax-chemistry-2eiupac-gold-bookThis is an authored directed relation from the source endpoint to the target endpoint.
Resolved transition frequencies, intensities, splittings, and selection patterns test structural assignments, but extracting geometry or dynamics requires an explicit spectroscopic model and uncertainty analysis.
The source theory, law, entity, prediction, or structural claim is directly tested, supported, constrained, or established by the target experiment or observation. Experimental support is not final logical proof; the edge detail states exactly what was measured.
wp-physics-chemical-bondopenstax-chemistry-2eiupac-gold-bookThis is an authored directed relation from the source endpoint to the target endpoint.
Stereochemistry studies distinctions arising from three-dimensional arrangement within a fixed or explicitly related connectivity.
A more specific theory, model, entity class, or regime is obtained by restricting or extending the scope of a broader framework.
wp-physics-chemical-bondopenstax-chemistry-2eiupac-gold-book