Alphabetical Index

Additional Indexes

Physical Constants Units of Measure Physical Quantities SI Prefixes Ring Index General Formulae Exact Formulae Source Documents Terms by IUPAC Div.

Version 3.0.1 (6463 Terms)

DOI: 10.1351/goldbook

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

Terms 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

α-cleavage α-elimination absorbed (spectral) photon flux density absorbed (spectral) radiant power density actinic actinism acyl shift (1,2-, 1,3-, photochemical) alkene photocycloaddition alkene photodimerization alkene photoisomerization alkene photorearrangement AM 0 sunlight AM 1 sunlight amalgam lamp aromatic photocycloaddition asymmetric photochemistry aza-di-π-methane rearrangement

bicycle rearrangement bicycle-pedal (BP) mechanism biphotonic excitation biphotonic process bipolarons branching plane Brewster angle \(\theta_{\text{B}}\)brightness brightness

chemically induced dynamic electron polarization chemically initiated electron exchange luminescence 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 (CW) laser conversion cross-section crystal photochemistry cut-on filter

DAS Dauben–Salem–Turro rules de Mayo reaction di-π-methane rearrangement di-π-silane rearrangement dichroic filter dichroic mirror dichroism diradicaloid dose downconversion driving force (for electron transfer) Drude–Nernst equation (for electrostriction) dual fluorescence dual-mode photochromism

E/Z photoisomerization El-Sayed rules electron back-transfer electrostriction emission anisotropy entrainment excimer lamp exposure

fatigue fluence rate \(E_{\unicode{x26ac}}\)fluorescence lifetime fluorescence resonance energy transfer fluorogenic fluorophore Förster-resonance-energy transfer Fourier-transform spectroscopy frequency \(\nu\),\(\omega\)frequency-domain fluorometry FRET

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

half-life \(\tau_{1/2}\)half-life \(T_{1/2}\)heliochromism hula-twist (HT) mechanism hyperfine (interaction)

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

Jahn–Teller effect

Kasha rule

LADS Landau–Zener model LAS laser dye laser-jet photochemical technique LED lifetime \(\tau\)light polarization light-emitting diode linear dichroism low-pressure mercury lamp (arc)

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

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

OLED one-bond-flip one-photon photochromism optical multi-channel analyser optical parametric amplification optical parametric oscillator optoacoustic spectroscopy orbital (atomic or molecular)

parametric amplification parametric processes Peierls distortion phonon phosphorescence lifetime photo-Bergman cyclization photo-Claisen rearrangement photoaffinity labelling photobiology photocatalysis photocatalyst photochemical funnel photochemical nitrogen extrusion photochemical reaction photochemical reaction path photochemical smog photochromism photocyclization photocycloaddition photodecarbonylation photodecarboxylation photodeconjugation photohydration photoisomerization photoluminescence photon counting photon echo photon exitance \(M_{\text{p}}\)photon exposure \(H_{\text{p}}\)photon fluence \(H_{\text{p,o}}\),\(F_{\text{p,o}}\)photon fluence rate \(E_{\text{p,o}}\)photon flux \(q_{\text{p}}\),\(\mathit{\Phi} _{\text{p}}\)photon irradiance \(E_{\text{p}}\)photon number \(N_{\text{p}}\)photon radiance \(L_{\text{p}}\)photorearrangement photoselection planar intramolecular charge transfer PLED polarization \(P\)polaron pump-dump-probe technique pump-probe technique

quantum mechanics/molecular mechanics quantum yield \(\mathit{\Phi}\)quartz–iodine lamp quenching

radiance \(L\)radiant (energy) flux \(P\),\(\mathit{\Phi}\)radiant exitance \(M\)radiant exposure \(H\)radiant intensity \(I\)radiant power \(P\)radiation trapping radiationless deactivation radiative energy transfer radiative lifetime \(\tau_{0}\)radical photosubstitution reflectance \(\rho\)Rehm–Weller equation Renner–Teller effect reorganization energy residual emission anisotropy resonance lamp rotational correlation time \(\tau_{\text{c}}\),\(\theta\)rotational relaxation time \(\rho\)

Schenck reaction Schenck-sensitization mechanism self-localized excitations single-photon timing singlet molecular oxygen singlet–triplet crossing soliton solvent-induced symmetry breaking spectral fluence rate \(E_{\lambda,\text{o}}\)spectral radiant energy \(Q_{\lambda}\)spectral sensitivity \(S(\lambda)\)spin-flip method spin-statistical factor

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

ultraviolet uniaxial sample upconversion

valence band visible VUV

Weller correlation Wigner matrices wolfram lamp Wood lamp

Yang photocyclization