Inorganic & Coordination Chemistry
60 terms · page 1 of 3
Alloy
A metallic material made by combining a metal with one or more other elements.
Inorganic & Coordination ChemistryAmbidentate Ligand
A monodentate ligand possessing two different potential donor atoms, either of which may bind.
Inorganic & Coordination ChemistryBidentate Ligand
A ligand that binds to the same metal centre through two donor atoms, forming a ring.
Inorganic & Coordination ChemistryCentral Metal Atom
The metal atom or ion at the heart of a coordination entity, which accepts electron pairs from the ligands.
Inorganic & Coordination ChemistryCharge Transfer Spectrum
An intense absorption produced when an electron moves between metal and ligand orbitals.
Inorganic & Coordination ChemistryChelate
A cyclic complex formed when a multidentate ligand grips a metal ion through two or more donor atoms.
Inorganic & Coordination ChemistryChelate Effect
The greater stability of a complex containing a multidentate ligand compared with one containing equivalent monodentate ligands.
Inorganic & Coordination ChemistryComplex Ion
A charged species consisting of a central metal ion surrounded by a definite number of ligands.
Inorganic & Coordination ChemistryCoordination Compound
A compound containing a central metal atom or ion bonded to surrounding molecules or ions by coordinate bonds.
Inorganic & Coordination ChemistryCoordination Isomerism
Isomerism in compounds containing both a complex cation and a complex anion, where ligands are distributed differently between them.
Inorganic & Coordination ChemistryCoordination Sphere
The central metal together with the ligands directly attached to it, written inside square brackets.
Inorganic & Coordination ChemistryCounter Ion
An ion outside the coordination sphere that balances the charge of the complex ion.
Inorganic & Coordination ChemistryCrystal Field Splitting Energy
The energy difference between the sets of d orbitals produced when a ligand field lifts their degeneracy.
Inorganic & Coordination ChemistryCrystal Field Stabilisation Energy
The net energy gained by a complex through the preferential occupation of lower-energy d orbitals.
Inorganic & Coordination ChemistryCrystal Field Theory
The model treating metal–ligand bonding as purely electrostatic and analysing how ligand fields split the metal d orbitals.
Inorganic & Coordination ChemistryDenticity
The number of donor atoms a single ligand uses to bind to one metal centre.
Inorganic & Coordination Chemistryd–d Transition
The promotion of an electron between split d orbitals, responsible for the characteristic colours of transition metal complexes.
Inorganic & Coordination ChemistryEffective Atomic Number Rule
The observation that stable metal carbonyls tend to have a total electron count equal to that of the next noble gas.
Inorganic & Coordination ChemistryEllingham Diagram
A plot of the standard free energy of formation of metal oxides against temperature, used to choose a reduction route.
Inorganic & Coordination ChemistryFlux
A substance added during smelting to combine with the gangue and form a fusible slag.
Inorganic & Coordination ChemistryFroth Flotation
A concentration method that separates minerals by exploiting differences in how readily their surfaces are wetted.
Inorganic & Coordination ChemistryGangue
The commercially worthless rock and mineral matter surrounding a valuable ore mineral.
Inorganic & Coordination ChemistryGeometrical Isomerism in Complexes
Stereoisomerism arising from different spatial arrangements of ligands around the metal centre.
Inorganic & Coordination ChemistryHigh Spin Complex
A complex in which electrons occupy the higher d orbitals singly before pairing, maximising unpaired spins.