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Experimental method codes used in thermodynamic tables

C Calorimetry
Cac Heat of acylation
Ccb Static bomb calorimetry
Ccr Rotating bomb calorimetry
Cflu Heat of fluorination
Chyd Calorimetry hydrogenation
Ciso Heat of isomerization
Cm Calorimetry
Cpha Photoacoustic calorimetry
Eqk Heat of equilibrium
Kin Kinetic measurements
Ion Ion cycles
V Vapor pressure
Review From literature review

Additional method codes used in data collected by J.S. Chickos

A Calculated from the vapor pressure data reported by the method of least squares
B Calculated from the sum of the enthalpies of vaporization at temperature T, and fusion at the melting point
BE Experimental value closest to the results obtained by adding experimental fusion and vaporization enthalpies
BG Bourdon Gage
DBM Dibutyl phthalate manometer
DM Diaphragm manometer
E Estimated
EB Ebulliometer
EM Electronic manometer
GS Gas saturation, transpiration
H Heat capacity correction to 298 K calculated according to reference
HA Heat capacity correction to 298 K evaluated by the authors; see reference for details
HP Corrected for both heat capacity and solid solid phase transitions occurring between 298 and mean temperature of measurement. Phase transition enthalpies occurring below the mean temperature of measurement have been added to DHs. Solid phase transitions occurring above the mean temperature of measurement have been ignored.
HSA Head space analysis
I Isoteniscope
IPM Inclined piston manometry
KG Knudsen gage
LE Langmuir evaporation
M Mean value
ME Mass effusion-Knudsen effusion
MG McLeod gage
MM Mercury manometer
NA Information not available
QF Quartz fiber
QR Quartz resonator
RG Rodebush gage
T Tensimeter
TCM Thermal conductivity manometer
TE Torsion effusion
TGA Thermal gravimetric analysis
TSGC Temperature scanning gas chromatography
Vis Viscosity gage
VG MKS Baratron vacuum gauge

Additional method codes used in data collected by J.E. Bartmess

A-AH Acidity from the enthalpies of formation of the anion and acid
Acid Enthalpy of formation of the anion from enthalpy of acid dissociation and enthalpy of formation of acid
Bran Kinetic method, chemically activated
Calc Value from MO calculation
CIDC Kinetic method, activated by collision or metastably
CIDT Collision induced dissociation threshold
CIEL Charge Inversion Energy Loss Spectroscopy
D-EA From the thermochemical cycle involving the enthalpy of acidity / A-H bond strength/ electron affinity
dEA Ion affinity from the difference in the EA from the next lower solvated ion.
Defn Value is set by definition
DH Enthalpy of formation of the radical or acid from the other plus bond dissociation energy
ECD Electron capture detector
EFD Electric field detachment
EIAE Electron impact appearance energy
Endo Translational threshold for endothermic ion / molecule process
ES Electron swarm
Est1 Group additivity with an experimental value for the core structure.
Est2 Estimated as comparable to analogs (all RCO2H bond energies the same, etc.)
Est3 From an alternate additivity method, such as Liebman's 'macro-chunking' method.
Est4 Extrapolated or interpolated from a structural series.
Est5 Estimated based on high-level calculations, that reproduce thermochemistry of other comparable systems well.
ETS Electron transmission spectroscopy
extr EA of bare ion extrapolation from the EAs of the multi-solvated series.
G+TS Enthalpy derived from free energy and entropy
GpAd Bensonian Group Additivity, usually using NIST Structure & Properties Database.
H-TS Free energy derived from enthalpy and entropy
IMRB Ion / molecule reaction bracketing
IMRE Ion / molecule reaction equilibrium
IRPD Infrared Photodetachment Spectroscopy
Isoe Anion entropy from that of the isoelectronic neutral
kfkr Equilibrium from ratio of forward and back rate constants
Kint From kinetic data for autodetachment
Latt Lattice energy
LOG Laser optogalvanic spectroscopy
LPD Laser photodetachment
LPES Laser photoelectron spectroscopy
Mobl Attachment energetics from mobility of ion in a gas
NBAE Neutral beam appearance potentials
NBIE Neutral beam ionization potentials
PAC Photoacoustic calorimetry
PD Photodetachment
PDis Photodissociation
PDM Photodetachment Microscopy
PDPE Photodetachment-Photoelectron spectroscopy
PDPI Laser Photodetachment-Resonant Ionization spectroscopy
PEPI Photoelectron-Photofragment Coincidence Spectroscopy.
R-A Electron affinity from the enthalpy of formation of the anion and corresponding neutral
R-AH Bond Dissociation Energy from the enthalpy of formation of the acid and radical
R-DH Enthalpy of formation of the acid from its Bond Dissociation Energy and the enthalpy of formation of the radical
R-EA Anion enthalpy of formation from the electron affinity and radical enthalpy of formation. Corrected to 298K with computational integrated heat capacities, when possible.
Rydb Threshold for electron transfer from Rydberg state of molecule
Scat Energetics of complex from scattering of ion beam in neutral gas
SDEA Bond dissociation energy, from the solution phase D-EA cycle. Usually pKas and E1/2(ox) in DMSO.
SEVI Slow-electron velocity-map imaging spectroscopy.
SI Surface ionization / Magnetron method
Spec Absorption spectrum of gaseous ion above heated MX salt.
Stat Based on statistical mechanics calculation, esp. loss of internal rotation and symmetry number changes
TDAs Temperature dependent association ion/molecule reaction
TDEq Temperature dependent equilibrium ion/molecule reaction
Ther Calculated from the thermochemical cycle of ion affinity plus enthalpies of formation of the ion and neutral species
TIPP Threshold Ion Pair Production
ZEKE Zero electron kinetic energy spectroscopy
ZTID Zero-pressure thermal radiation induced dissociation

Additional method codes used in data collected by J.A. Martinho Simões

CC-RB Combustion calorimetry (rotating bomb)
CC-SB Combustion calorimetry (static bomb)
DSC Differential scanning calorimetry
DTA Differential thermal analysis
EChem Electrochemical methods
EIMS Electron impact mass spectrometry
EqG Equilibrium in the gas phase
EqS Equilibrium in solution
EST Thermochemical estimate or assessment of literature data
FA-SIFT Flowing afterglow – selected ion-flow tube
HAL-HFC Halogenation – heat-flux calorimetry
ICR Ion cyclotron resonance mass spectrometry
KC Knudsen cell
KC-MS Knudsen cell – mass spectrometry
KinG Kinetics in the gas phase
KinS Kinetics in solution
LPHP Laser-powered homogeneous pyrolysis
LPS Laser photoelectron spectroscopy
MBPS Molecular beam photofragment spectroscopy
PC Photocalorimetry
PES Photoelectron spectroscopy
PIMS Photoionization mass Spectrometry
RSC Reaction-Solution Calorimetry (Batch or Titration)
TD-HFC Thermal Decomposition – Heat-Flux Calorimetry
TD-HZC Thermal Decomposition – Hot-Zone Calorimetry
VLPP Very Low Pressure Pyrolysis

Additional method codes used in data collected by M. Mautner

ATM Ion molecule equilibria in the atmosphere
CID Collision-induced dissociation
DT Diffusion tube
EI Electron ionization
EmSpec Emission spectroscopy
ES/HPMS Electrospray high pressure mass spectrometry
FA Flowing afterglow
HPMS High pressure mass spectrometry
ICRCD Ion cyclotron resonance collision dissociation
IMob Ion mobility
KERDS Cluster dissociation
MIKES Mass analyzed ion kinetic energy spectroscopy
MKER Metastable dissociation of cluster ions
MPI Multiphoton ionization
MS Mass spectroscopy
PD/KERD Photodissociation kinetic energy release dynamics
PHPMS Pulsed high pressure mass spectrometry
PI Photoionization
PIPECO Photoion-photoelectron coincidence
SAMS Stationary afterglow mass spectrometry
SCATTERING Scattering cross sections
SIDT Selected ion drift tube
SIFT Selected ion flowing afterflow
TPEPICO Threshold phototelectron-photoion

Additional method code used in values computed by J.J.P. Stewart

Semi Semi-empirical calculation