Alphabetical Index

Additional Indexes

Physical Constants Units of Measurement Physical Quantities SI Prefixes Ring Index General Formulae Exact Formulae Source Documents Terms by IUPAC Division Terms by Organization

Version 5.0.0 (14588 Terms)

DOI: 10.1351/goldbook

Jan Kaiser - Content Editor
Stuart J. Chalk - Technical Editor
Joint Subcommittee
on the IUPAC Gold Book

Terms (251) sourced from: 10.1351/pac200779030293

"Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)", Braslavsky, S.E., Pure and Applied Chemistry 2007, 79(3), 293

AM 0 sunlight AM 1 sunlight absorbed photon flux density absorbed radiant power density actinic actinism acyl shift in photochemistry alkene photocycloaddition alkene photodimerization alkene photoisomerization alkene photorearrangement amalgam lamp aromatic photocycloaddition aromatic substitution photochemical electrophile-olefin combination aromatic substitution photochemical radical-olefin combination asymmetric photochemistry aza-di-π-methane rearrangement α-cleavage α-elimination

Brewster angle bicycle rearrangement bicycle-pedal mechanism biphotonic excitation biphotonic process bipolarons branching plane brightness brightness of a laser dye

caged compound charge-transfer absorption chemically induced dynamic electron polarization chemically initiated electron exchange luminescence cis/trans photoisomerisation color scale colourability complete active space self-consistent field complete active space self-consistent field second-order perturbation theory computational photochemistry concentration depolarization conical intersection continuous wave laser conversion cross-section crystal photochemistry cut-on filter

DAS Dauben–Salem–Turro rules Drude–Nernst equation for electrostriction de Mayo reaction di-π-methane rearrangement di-π-silane rearrangement dichroic mirror dichroism diradicaloid dose in photochemistry downconversion driving force for electron transfer dual fluorescence of systems or molecular species dual-mode photochromism

E/Z photoisomerization El-Sayed rules electron back-transfer electrostriction emission anisotropy entrainment in photochemistry excimer lamp exposure in photochemistry external quantum efficiency

FRET Fourier-transform spectroscopy Franck–Condon factor Förster-resonance-energy transfer fatigue of a photochromic system fluence rate fluorescence lifetime fluorescence resonance energy transfer fluorogenic fluorophore frequency in photochemistry frequency-domain fluorometry

Gibbs energy of photoinduced electron transfer gated photochromism geminate ion pair global analysis

half-life of a transient entity half-life of a photochromic system heliochromism hula-twist mechanism hyperfine

IC ICT ISC infrared intersection space intramolecular charge transfer intramolecular charge transfer emission irradiance at a point of a surface isoemissive point isolampsic point isooptoacoustic point isosbestic point isostilbic point

Jahn–Teller effect

Kasha rule

LADS LAS LED Landau–Zener model Lippert–Mataga equation laser dye laser-jet photochemical technique lifetime light polarization light-emitting diode linear dichroism low-pressure mercury lamp

Marcus equation for electron transfer magic angle magnetic circular dichroism medium-pressure mercury lamp mercury–xenon lamp minimum-energy reaction path molar absorption coefficient molecular orientation monochromator multiconfiguration SCF method multireference configuration interaction

Norrish Type I photoreaction Norrish Type II photoreaction Norrish–Yang reaction non-crossing rule non-linear optical techniques non-vertical energy transfer normal region for electron transfer nucleophilic aromatic photosubstitution

OLED one-bond-flip one-photon photochromism optical multi-channel analyser optical parametric amplification optical parametric oscillator optoacoustic spectroscopy orbital

PLED Peierls distortion parametric amplification parametric processes phonon phosphorescence lifetime photo-Bergman cyclization photo-Claisen rearrangement photoaffinity labelling photobiology photocaged fluorescent molecules photocatalysis photocatalyst photochemical aromatic substitution photochemical funnel photochemical nitrogen extrusion photochemical nucleophile-olefin combination - aromatic substitution photochemical reaction photochemical reaction path photochemical smog photochirogenesis photochromism photocyclization photocycloaddition photodecarbonylation photodecarboxylation photodeconjugation photoenolisation photohydration photoisomerization photoluminescence photon counting photon echo photon exitance photon exposure photon fluence photon fluence rate photon flux photon irradiance photon number ($N_{\rm{p}}$)photon radiance photorearrangement photorefractive effect photoremovable protecting group photoselection photostimulated unimolecular radical nucleophilic substitution photosubstitution phototautomerisation planar intramolecular charge transfer polar driving force polarisation spectroscopy polarization ($P$)polaron pump-dump-probe technique pump-probe technique

quantum mechanics/molecular mechanics quantum yield quartz–iodine lamp quenching

Rehm–Weller equation Renner–Teller effect radiance radiant exitance radiant exposure radiant intensity radiant power radiation trapping radiationless deactivation radiative energy transfer radiative lifetime radical photosubstitution reflectance reorganization energy in electron transfer residual emission anisotropy resonance lamp rotational correlation time rotational relaxation time

Schenck reaction Schenck-sensitization mechanism self-localized excitations in conjugated organic polymers single-photon timing singlet molecular oxygen singlet–triplet crossing soliton solvent-induced symmetry breaking spectral fluence spectral fluence rate spectral radiant energy spectral sensitivity spin-flip method spin-statistical factor in diffusion-controlled reactions

time-dependent density functional theory time-resolved microwave conductivity transient-stimulated emission pumping transition moment tungsten-halogen lamp twisted intramolecular charge transfer two-photon photochromism

ultraviolet uniaxial sample upconversion

VUV valence band visible

Weller correlation Wood lamp wolfram lamp

Yang photocyclization

$\pu{\rm{Z}_{50}}$ ($Z_{50}$) of a photochromic system