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IUPAC Compendium of Chemical Terminology

 

[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M]
[N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z]

> Back to index

angstrom
n-pi* state
n-pi* transition
n-sigma* delocalization (or n-sigma* no bond resonance)
n-sigma* transition
nano
nanocomposite
nanodomain morphology
nanofiltration
nanoscopic film
naphthenes
naphthenic acids
narcissistic reaction
natural atomic orbital (NAO)
natural bond orbital (NBO)
natural broadening (of a spectral line)
natural graphite
natural hybrid orbital (NHO)
natural isotopic abundance
natural lifetime
natural orbital
natural population analysis (NPA)
natural radiation
natural radioactivity
neat soap
necrosis
needle coke
negative adsorption
negative feedback
negative hyper-conjugation
negative ion (in mass spectrometry)
negaton
neighbouring group participation
nematic phase
nematic state
neodymium laser
neoflavonoids
neolignans
neper
nephelometry
Nernst's diffusion layer
net (in surface chemistry)
net current
net electric charge (of a particle) (in electrophoresis), z
network (in polymer chemistry)
network polymer
neutral-density filter
neutrino (electron neutrino)
neutron
neutron density
neutron multiplication
neutron number, N
neutron rest mass
neutron temperature
neutrophilic organisms
Newman projection
newton
Newton black film
Newton diagram
Newtonian fluid
NHOMO
nido-
Nier-Johnson geometry
NIH shift
nimbostratus cloud (in atmospheric chemistry)
nitramines
nitrenes
nitrenium ions
nitrification
nitrile imides
nitrile imines
nitrile oxides
nitriles
nitrile sulfides
nitrile ylides
nitrilimines
nitrilium betaines
nitrilium ions
nitrimines
nitro compounds
nitrogen fixation
nitrogen laser
nitrogen mustards
nitrogen ylides
nitrolic acids
nitrones
nitronic acids
nitrosamides
nitrosamines
nitrosimines
nitroso compounds
nitrosolic acids
nitroxides
nitroxyl radicals
NOAEL
no-bond resonance
no carrier added
nodal plane
noise
no-load indication (for a precision balance)
nominal linear flow (in chromatography), F
nominally labelled tracer
nonadiabatic
nonadiabatic coupling
nonadiabatic electron transfer
nonadiabatic photoreaction
nonbonded interactions
nonbonding molecular orbital
non-calorimetric thermophysical measurements
nonclassical carbocation
nonclassical structure
non-coherent source (in spectrochemistry)
non-crystalline electrodes
non-destructive activation analysis
non-diagram line (in X-ray spectroscopy)
non-dissociative chemisorption
non-draining
non-equilibrium reaction
non-graphitic carbon
non-graphitizable carbon
non-ideal chromatography
non-ideal, linear chromatography
non-ideal, non-linear chromatography
non-isotopic labelling
non-Kekulé molecules
non-linear chromatography
non-linear distribution isotherm (in chromatography)
non-linear optical effect
non-linear optical polymer
non-linearity error (in spectrochemical analysis)
non-localized adsorption
non-polarized interphases
non-radiative decay
nonselective detector
nonselectively labelled
nonselective quantum counter
non-specific adsorption
non-uniform corrosion
non-uniform polymer
non-vertical energy transfer
no-observed-adverse-effect-level (NOAEL)
no-observed-effect-level (NOEL)
nor-
normal
normal distribution
normal kinetic isotope effect
normal-phase chromatography
normal region (for electron transfer)
normal stress, sigma
normal X-ray level
normalization
Norrish type II photoreaction
Norrish Type I photoreaction
n-star macromolecule
n-strand chain
n-strand molecule
N-terminal residue (in a polypeptide)
nth order phase transition
nuclear atom
nuclear chemistry
nuclear decay
nuclear disintegration
nuclear fission
nuclear fuel
nuclear fusion
nuclear fusion reaction
nuclear graphite
nuclear isomers
nuclear level
nuclear magneton
nuclear particle
nuclear quadrupole moment (spectroscopic)
nuclear reactor
nuclear transformation
nuclear transition
nuclearity
nucleating agent
nucleation (in colloid chemistry)
nucleation and growth
nucleation of phase separation (in polymer chemistry)
nucleic acids
nucleofuge
nucleon
nucleon number
nucleophile (nucleophilic)
nucleophilic catalysis
nucleophilicity
nucleoproteins
nucleosides
nucleotide bases
nucleotides
nucleus
nuclide
nuclidic mass
nuisance threshold (in atmospheric chemistry)
number concentration, C, n
number content
number density, n
number-distribution function
number flow rate
number fraction
number of entities, N
number of moles
number of theoretical plates
numerical value (of a quantity)


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