Final answer:
The expected angles in an organic structure are: bond angle, torsional angle, dihedral angle, and electron cloud angle.
Step-by-step explanation:
The expected angles around each indicated atom in the organic structure are as follows:
a) Bond angle: The bond angle is the angle between any two bonds that include a common atom. In this case, the bond angle is slightly less than 109.5°, which is the ideal bond angle for a tetrahedral arrangement. The actual bond angle is 104.5°.
b) Torsional angle: The torsional angle is the angle between two adjacent bonds in a molecule, measured when looking down the bond. The specific torsional angles will depend on the molecule.
c) Dihedral angle: The dihedral angle is the angle between two planes formed by three consecutive atoms in a molecule. It is typically used to describe the relative orientation of two chemical groups in a molecule. The specific dihedral angles will depend on the molecule.
d) Electron cloud angle: The electron cloud angle refers to the angle that describes the distribution of an electron cloud around an atom. It is determined by the electron pair geometry and molecular structure of the molecule.