Example 6 An imine is a molecule that contains a carbon – nitrogen double bond. Describe the bonding of the simplest possible imine, H₂CNH, by sketching the σ and л bonding systems.

Draw the Lewis structure of methanethiol (CH₂SH) and then choose the appropriate pair of molecular geometries of the two central atoms. Your answer choice is independent of the orientation of your drawn structure.

What are the angles a and b in the actual molecule of which this is a Lewis structure? Н Н Н Н olb Н Note for advanced students: give the ideal angles, and don't worry about small differences from the ideal that might be caused by the fact that different electron groups may have slightly different sizes. 18 Ar b = ||

Give the Valence Bond Theory Description of Bonding. Sketch a picture using hybrid orbitals of C2O2N+​​​​​​​.Show all electrons as up and down half arrows (↿⇂). Label all σ and π bonds.

What are the angles a and b in the actual molecule of which this is a Lewis structure? H H H C H a a = C b = ⁰ C H Note for advanced students: give the ideal angles, and don't worry about small differences from the ideal that might be caused by the fact that different electron groups may have slightly different sizes. H X

Consider an iodine tetrafluoride cation (IF4+) How many valence electrons does this molecule contain? How many lone electron pairs surround the central atom? How many regions of electron density surround the central atom? What is the electron geometry of this molecule? What is the molecular shape of this molecule? Is this a polar molecule? What is the hybridization of the central atom?