Coordination chemistry

number that describes degree of oxidation of an atom in a chemical compound; the hypothetical charge that an atom would have if all bonds to atoms of different elements were fully ionic

thumb|200px|Cobalt complex cobalt tetracarbonyl hydride|HCo(CO)4 with five ligands

molecule or ion containing ligands datively bonded to a central metallic atom

covalent bond in a coordination complex in which the shared electrons are donated by one of the atoms and also known as dative bond

number of atoms, molecules or ions bonded to in a molecule or crystal

Chelation () is a type of bonding and sequestration of metal atoms. It involves two or more separate dative covalent bonds between a ligand and a single metal atom, thereby forming a ring structure. The ligand is called a chelant, chelator, chelating agent, or sequestering agent. It is usually an organic compound, but this is not a requirement.

thumb|144 px|Structure of the methoxide anion. Although alkali metal alkoxides are not salts and adopt complex structures, they behave chemically as sources of . thumb|right|The structure of the methoxide ion In chemistry, an alkoxide is the conjugate base of an alcohol and therefore consists of an organic group bonded to a negatively charged oxygen atom. They are written as , where R is the organyl substituent. Alkoxides are strong bases and, when R is not bulky, good nucleophiles and good ligands. Alkoxides, although generally not stable in protic solvents such as water, occur widely as inte

mechanism of spontaneous symmetry breaking in molecular and solid-state systems

model that describes the breaking of degeneracies of electron orbital states, usually d or f orbitals, due to a static electric field produced by a surrounding charge distribution (anion neighbors)

150px|right|thumb|Ferrocene contains two η5-[[cyclopentadienyl ligands]]

type of reaction in organometallic chemistry

molecular geometry

geometric arrangement of atoms about a given central atom in a coordination complex

list of ligands in coordination compounds topic of Inorganic chemistry

central atom or ion and an array of molecules or anions, the ligands, around

thumb|220px|Atom withmonodentate ligands

ligand that connects two or more coordination centers

back bonding

method of predicting a chemical complex's absorption spectrum

rules to predict ionic compounds' crystal structures

anion which interacts only weakly with cations

class of chemical compounds

measure of the steric bulk of a ligand in a transition metal complex

type of structural isomerism in which a polyatomic ligand or moiety can be connected via different atoms

Inorganic chemistry

Decrease in the Racah interelectronic repulsion parameter that occurs when a transition-metal free ion forms a complex with ligands

coordination complex with all ligands identical

class of chemical compounds

constants in chemistry

energy diagrams for transition metal complexes

potentials for high-spin and low-spin configurations of d electrons in transition metal complexes