Chemical Compounds
Anion
74%
Gas
36%
Thermodynamic Cycle
35%
Ion
31%
Proton Affinity
30%
Enthalpy of Formation
29%
Hydrogen Bond
22%
Acid
21%
Electron Binding Energy
20%
Photoelectron Spectroscopy
20%
Cyclopropene
18%
Energy
18%
Cyclopropane
16%
Deprotonation
16%
Thiourea
15%
Carbanion
15%
Radical Anion
15%
Ab Initio Calculation
13%
Isomerization
13%
Density Functional Theory
13%
Molecular Cluster
12%
Friedel-Crafts Alkylation
12%
Catalyst
12%
Thermodynamic Property
11%
Photoelectron Spectrum
11%
Zwitterion
11%
Acetolysis
10%
Heat
10%
Electrospray Ionization
10%
Compound Isomer
10%
Desilylation
10%
Elimination Reaction
9%
Hydrogenation
9%
Collisionally Activated Dissociation (CAD)
9%
Electron Particle
9%
Ionization Potential
8%
Chemistry
8%
Proton Transfer
8%
Chemical Transformation
8%
Thioureas
8%
Hydroxide
8%
Bond Energy
8%
Acid Catalyst
7%
Polyol
7%
Electron Detachment
7%
CCSD
7%
Proton
7%
Deuterium(.)
7%
Antiaromatic Compound
7%
Engineering & Materials Science
Negative ions
100%
Acidity
41%
Ions
37%
Gases
33%
Electrons
30%
Protons
28%
Acids
22%
Binding energy
21%
Deprotonation
20%
Hydrogen bonds
19%
Electron affinity
16%
Proton transfer
15%
Photoelectron spectroscopy
15%
Density functional theory
14%
Deuterium
13%
Isomerization
13%
Hot Temperature
13%
Thermodynamics
12%
Molecules
12%
Hydrogen
11%
Isomers
11%
Mass spectrometers
11%
Alcohols
11%
Positive ions
9%
Mass spectrometry
9%
Ionization potential
8%
Hydrogenation
8%
Polyols
8%
Photoelectrons
8%
Molecular orbitals
7%
Fourier transforms
7%
Reagents
7%
Electrostatics
6%
Lithium
5%
Atoms
5%
Phase structure
5%
Temperature
5%
Derivatives
5%
Catalysts
5%
Conformations
5%
Enthalpy
5%
Physics & Astronomy
anions
33%
acidity
23%
vapor phases
14%
thioureas
13%
catalysts
12%
acids
12%
electron affinity
12%
hydrogen bonds
11%
ions
10%
photoelectron spectroscopy
10%
heat of formation
9%
dissociation
9%
chlorides
9%
affinity
8%
protons
8%
density functional theory
8%
iodides
7%
negative ions
7%
amino acids
7%
alkylation
7%
isomers
7%
salts
7%
Diels-Alder reactions
6%
marking
6%
thermochemistry
6%
reactivity
6%
thermodynamic cycles
6%
mass spectroscopy
6%
alcohols
6%
vehicles
5%
energy
5%
mass spectrometers
5%
phosphoric acid
5%
detachment
5%
hydroxides
5%
nucleophiles
5%
rings
5%