Examples are BF3, SO3 and COCL2.
SO3
Sulfur tetraoxide is a trigonal planar. There is the sulfur in the middle and three oxygen that surrounds it with all of them a double bond linking them to the sulfur.
For a truly trigonal planar molecule the bond angles are 120 0 exactly.
The molecular geometry of BF3 is trigonal planar. It has three bond pairs and no lone pairs, resulting in a planar triangular shape. The bond angle between the three fluorine atoms is approximately 120 degrees.
The molecule H2CO, formaldehyde, has a trigonal planar molecular shape with a bond angle of 120 degrees. It is a polar molecule due to the difference in electronegativity between carbon and oxygen, resulting in a net dipole moment.
SO3
trigonal planar
A trigonal planar molecule such as sulfur trioxide (SO3) or boron trihydride (BH3) has a trigonal planar shape. Trigonal pyramidal molecules such as ammonia (NH3) have bond angle closer to 107 degrees.
Trigonal planar and tetrahedrral geometries tend to be present in polar molecules.
Not linear.
CO32- is trigonal planar, bond angles are 1200
Some typical shapes include tetrahedral, linear (or straight), bent, trigonal planar, trigonal bipyramid, and ring compounds.
nh3
Trigonal Planar Electronic Geometry Geometry of Molecules: Trigonal Planar Three oxygen atoms are joined to the nitrogen atom in the NO3- ion to create a center atom. The configuration is trigonal planar, and the three oxygen atoms' bonds to the nitrogen atom have roughly 120-degree angles.
Sulfur tetraoxide is a trigonal planar. There is the sulfur in the middle and three oxygen that surrounds it with all of them a double bond linking them to the sulfur.
For a truly trigonal planar molecule the bond angles are 120 0 exactly.
nh3