Tetracoordinate

Tetracoordinate in coordination chemistry generally refers to four ligands or atomic attachments to a single metal centre. Tetracoordinate species can form tetrahedral, square planar or pyramidal geometries. This is usually dictated by lone electron pairs on the metal centre.

Molecular geometry

Coordination number 2	Linear Bent

Coordination number 3	Trigonal planar Trigonal pyramidal T-shaped

Coordination number 4	Tetrahedral Square planar Seesaw

Coordination number 5	Trigonal bipyramidal Square pyramidal Pentagonal planar

Coordination number 6	Octahedral Trigonal prismatic Pentagonal pyramidal Distorted octahedral

Coordination number 7	Pentagonal bipyramidal

Coordination number 8	Square antiprismatic

Coordination number 9	Tricapped trigonal prismatic Capped square antiprismatic

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