Molecular Geometry & Shapes
Name the Compound OF2
Oxygen difluoride
Name the Compound PCl5
Phosphorus Pentachloride; Phosphorus(V) chloride
Name the Compound SeF6
Selenium hexafluoride
Name the Compound CBr2O
Carbonyl dibromide
Name the Compound NF3
Nitrogen trifluoride
Molecular Shape - Trigonal Planar
- Trigonal planar is a molecular shape that results when there are three bonds and no lone pairs around the central atom in the molecule. - The pairs are arranged along the central atom's equator, with 120° angles between them. - The carbonate ion (CO32-) has a trigonal planar geometry.
Molecular Shape - Octahedral
- In chemistry, octahedral molecular geometry describes the shape of compounds with six atoms or groups of atoms or ligands symmetrically arranged around a central atom, defining the vertices of an octahedron. - The octahedron has eight faces, hence the prefix octa.
Molecular Shape - Linear
- In chemistry, the linear molecular geometry describes the geometry around a central atom bonded to two other atoms (or ligands) placed at a bond-angle of 180°. - Linear organic molecules, such as acetylene (HC≡CH), are often described by invoking sp orbital hybridization for their carbon centers.
Molecular Shape - Bent
- In chemistry, the term "bent" can be applied to certain molecules to describe their molecular geometry. - Water (H2O) is an example of a bent molecule, as well as its analogues. - The bond angle between the two hydrogen atoms is approximately 104.45°.
Molecular Shape - Really Bent
- In chemistry, the term "really bent" can be applied to certain molecules to describe their molecular geometry. - The bond angle between the two hydrogen atoms is less than 109°.
Molecular Shape - Trigonal Pyramidal
- Trigonal pyramidal is a molecular shape that results when there are three bonds and one lone pair on the central atom in the molecule. - Molecules with an tetrahedral electron pair geometries have sp3 hybridization at the central atom. - Ammonia (NH3) is a trigonal pyramidal molecule.
Molecular Shape - Tetrahedral
- Tetrahedral is a descriptor of the geometry of a molecule in which a central atom forms four bonds which are directed toward the corners of a regular tetrahedron.
Molecular Shape - Trigonal Bi-pyramidal
- Trigonal bipyramidal molecular geometry. - In chemistry a trigonal bipyramid formation is a molecular geometry with one atom at the center and 5 more atoms at the corners of a triangular di-pyramid. - Example of this molecular geometry are phosphorus pentafluoride (PF5)
Linear
AB2 Example: N2O Nitrous oxide
Bent
AB2E Example: O3 - ozone
Really Bent
AB2E2 Example: OF2 - oxygen di-fluoride
Molecular Shape: OF2
AB2E2 bent 109.5 degrees polar molecule
Trigonal Planar
AB3 Example: NO3 - nitrate ion
Trigonal Pyramidal
AB3E Example: PCl3 - phosphorus tri-chloride
Molecular Shape: NF3
AB3E trigonal pyramidal tetrahedral polar
Tetrahedral
AB4 Example: NH4+ - ammonium ion
Trigonal Bipyramidal
AB5 Example: AsF5 - Arsenic pentafluoride
Molecular Shape: PCl5
AB5 trigonal bipyramidal non polar molecule
Octahedral
AB6 Example: SeF6 - Selenium hexafluoride
Molecular Shape: SeF6
AB6 octahedral nonpolar