Source / pinned edition
Molecular Spectra
Source of package openstax.condensed_matter · OpenStax University Physics, ch. 9 Condensed Matter Physics, module m58593
- work
- urn:openstax:clir:condensed-matter#M58593
- number
- OpenStax University Physics, ch. 9 Condensed Matter Physics, module m58593
- kind
- urn:openstax:clir:condensed-matter#treatise
m58593/index.cnxml at commit d0ed34a (main, 2026-06-11)
- edition
- urn:openstax:clir:condensed-matter#M58593_MAIN
- language
- en
- officiality
- official
- materialisation
- PINNED_OFFICIAL_BYTES
- life cycle
- adopted: 2026-06-11
Publications
| URI | Type | documentHash | Retrieved |
|---|---|---|---|
| https://raw.githubusercontent.com/openstax/osbooks-university-physics-bundle/d0ed34a5851119a42e3d972dfc0ff49e4663977c/modules/m58593/index.cnxml | application/xml; charset=utf-8 | sha256:cd647ee603c0f7a481747da06c2ec663a44136b372482533e601adc7e0ac3466 | 2026-09-06T00:00:00Z |
Fragments — 6
module/m58593#fs-id1172098417967 · section · referenced by: 1
en · official · sha256:a2da0240eed11f33b1a2250cb091a9d601559bb3853656fa5f70919611dcfee4
<para id="fs-id1172098417967">where <emphasis effect="italics">l</emphasis> is the orbital angular quantum number. The allowed <term id="term-00001">rotational energy level</term> of a diatomic molecule is therefore</para>Referencing norms: RotationalLevelIsLTimesLPlusOne
module/m58593#fs-id1172098524515 · defn · referenced by: 1
en · official · sha256:197d884e54345b6e338ab09b5d6ccf71717708366b1af83bc9d7cfd84df46745
<definition id="fs-id1172098524515">
<term>electric dipole transition</term>
<meaning id="fs-id1172098268646">transition between energy levels brought by the absorption or emission of radiation</meaning>
</definition>Referencing norms: claimed_transition
module/m58593#fs-id1172100965823 · defn · referenced by: 3
en · official · sha256:2b97d94176ff82e80ed405f01bd2f1d61e657a107051df465766f36371350ce8
<definition id="fs-id1172100965823">
<term>rotational energy level</term>
<meaning id="fs-id1172100969992">energy level associated with the rotational energy of a molecule</meaning>
</definition>Referencing norms: RotationalLevelOffTheLadderIsRefuted, characteristic_rotational_energy, claimed_rotational_level
module/m58593#fs-id1172100561555 · defn · referenced by: 2
en · official · sha256:ef4a2e5c15f6d5ab7bd6029fe7abc66cfc924cff7a1a4d2d1c694dba8c1348e2
<definition id="fs-id1172100561555">
<term>selection rule</term>
<meaning id="fs-id1172098311536">rule that limits the possible transitions from one quantum state to another</meaning>
</definition>Referencing norms: TransitionDownByOneOccurs, TransitionUpByOneOccurs
module/m58593#fs-id1172100743970 · section · referenced by: 4
en · official · sha256:a3c0002c97e0a1a2220107574ac8a85ec70549a990113ce93ffd91eb658051f6
<para id="fs-id1172100743970">This rule, known as a <term id="term-00003">selection rule</term>, limits the possible transitions from one quantum state to another. <link target-id="fs-id1172098566977"/> is the selection rule for rotational energy transitions. It applies only to diatomic molecules that have an electric dipole moment. For this reason, symmetric molecules such as <m:math><m:mrow><m:msub><m:mtext>H</m:mtext><m:mn>2</m:mn></m:msub></m:mrow></m:math> and <m:math><m:mrow><m:msub><m:mtext>N</m:mtext><m:mn>2</m:mn></m:msub></m:mrow></m:math> do not experience rotational energy transitions due to the absorption or emission of electromagnetic radiation.</para>Referencing norms: SymmetricMoleculeHasNoDipoleTransitions, TransitionByMoreThanOneDoesNotOccur, diatomic_with_electric_dipole_moment, symmetric_molecule
module/m58593#fs-id1172100803692 · defn
en · official · sha256:4ebde9424c5f922c79dc7c3a1cc4b7bfc803569a3db441f29e3443095e1fa832
<definition id="fs-id1172100803692">
<term>vibrational energy level</term>
<meaning id="fs-id1172100723871">energy level associated with the vibrational energy of a molecule</meaning>
</definition>The hash beside the text is the sha256 of its exact bytes. It is the check that the text shown matches the one pinned in the package: a divergence fails the oracle’s static analysis.