Hexacoordinate
Encyclopedia
Hexacoordinate in chemistry generally refers to a molecule
with six ligand
s or atomic attachments arranged around a single metal atom in the centre. Most hexacoordinate species form an octahedral molecular geometry
, with four ligands arranged equatorially, and two axially.
There is research that suggests some planar hexacoordinate structures of carbon
may exist.
Molecule
A molecule is an electrically neutral group of at least two atoms held together by covalent chemical bonds. Molecules are distinguished from ions by their electrical charge...
with six ligand
Ligand
In coordination chemistry, a ligand is an ion or molecule that binds to a central metal atom to form a coordination complex. The bonding between metal and ligand generally involves formal donation of one or more of the ligand's electron pairs. The nature of metal-ligand bonding can range from...
s or atomic attachments arranged around a single metal atom in the centre. Most hexacoordinate species form an octahedral molecular geometry
Octahedral molecular geometry
In chemistry, octahedral molecular geometry describes the shape of compounds where in six atoms or groups of atoms or ligands are symmetrically arranged around a central atom, defining the vertices of an octahedron...
, with four ligands arranged equatorially, and two axially.
There is research that suggests some planar hexacoordinate structures of carbon
Carbon
Carbon is the chemical element with symbol C and atomic number 6. As a member of group 14 on the periodic table, it is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds...
may exist.