BIO - TERMS - ION Flashcards
Alkoxymercuration
A method for synthesizing ethers by mercuric-ion catalyzed addition of an alcohol to an alkene followed by demercuration on treatment with NaBH4.
base ionization constant (Kb)
The equilibrium constant for the ionization reaction of a weak base; used to compare the relative strengths of weak bases.
basic solution
A solution containing a base that creates additional OH- ions, causing the [OH-] to increase.
calcium pump
An ion pump that removes cytosolic Ca²⁺.
chelate
A complex ion that contains either a bi- or polydentate ligand.
complete ionic equation
An equation that lists individually all of the ions present as either reactants or products in a chemical reaction.
complex ion
An ion that contains a central metal ion that is bound to one or more ligands.
coordination isomers
Isomers of complex ions that occur when a coordinated ligand exchanges places with the uncoordinated counterion.
current
Movement of charged particles, such as ions.
electrical energy
Movement of charged particles (such as ions).
formation constant (Kf)
The equilibrium constant associated with reactions for the formation of complex ions.
Fourier transform ion cyclotron resonance (FTICR)MS
Mass analyzer in mass spectrometry where the mass-tocharge ratio of ions is determined by the measurement of the frequency of the periodic ion movement in a magnetostatic field.
heat of hydration (ΔHhydration)
The enthalpy change that occurs when 1 mol of gaseous solute ions is dissolved in water.
Ion pairs
A loose association between two ions in solution. Ion pairs are implicated as intermediates in SN1 reactions to account for the partial retention of stereochemistry that is often observed.
ion selectivity
A property of ion channels that are selectively permeable to some ions and not to others.
Ion-dipole interaction
Attraction force between an ion and a component of a polarized bond.
lattice energy
The energy associated with forming a crystalline lattice from gaseous ions.
Ligand-gated ion channels
Ion channels that are regulated by the binding of a neurotransmitter.