T-shaped molecular geometry

T-shaped molecular geometry is a type of molecular geometry. An atom in a molecule has this geometry if it has chemical bonds to three other atoms, with two of them on opposite sides of the middle atom in a straight line, and the bond to the other atom is perpendicular to that line.

Chlorine trifluoride has T-shaped molecular geometry.

T-shaped molecular geometry is found in hypervalent molecules where the central atom has three bonds and two lone pairs. (In AXE notation, these are AX₃E₂ molecules.)

It is related to trigonal bipyramidal molecular geometry. The perpendicular atom is one corner of the base of the bipyramid, and the lone pairs are the other two.