In I3–, the three lone pairs of electrons can be placed all equatorial, one axial and two equatorial, or two axial and one equatorial. Determine the total number of each type of 90° repulsive interaction for each placement. Determine the total number of each type of 90° repulsive interactions for each placement. Placement of three lone pairs equatorial one axial/ two equatorial two axial/ one equatorial “We are what we repeatedly do. Excellence, then, is not an act, but a habit.” Aristotle Page 11 of 14 VSEPR- Valence Shell Electron Pair Repulsion Theory, Shapes of Molecules number of each type of 90 degree repulsive interactions SF6 SF5– 90o LP-LP _______ 90o LP-BP ______ 90o BP-BP ______ 90o LP-LP ______ 90o LP-BP ______ 90o BP-BP ______ 90o LP-LP ______ 90o LP-BP ______ 90o BP-BP ______ In terms of increasing repulsions between electron pairs, the trend is: BP-BP (least repulsive) > BP-LP > LP-LP (most repulsive). In order to minimize repulsions between electron pairs situated 90° apart, the three lone pairs of electrons should be placed __________________________________
Electronic Effects
The effect of electrons that are located in the chemical bonds within the atoms of the molecule is termed an electronic effect. The electronic effect is also explained as the effect through which the reactivity of the compound in one portion is controlled by the electron repulsion or attraction producing in another portion of the molecule.
Drawing Resonance Forms
In organic chemistry, resonance may be a mental exercise that illustrates the delocalization of electrons inside molecules within the valence bond theory of octet bonding. It entails creating several Lewis structures that, when combined, reflect the molecule's entire electronic structure. One Lewis diagram cannot explain the bonding (lone pair, double bond, octet) elaborately. A hybrid describes a combination of possible resonance structures that represents the entire delocalization of electrons within the molecule.
Using Molecular Structure To Predict Equilibrium
Equilibrium does not always imply an equal presence of reactants and products. This signifies that the reaction reaches a point when reactant and product quantities remain constant as the rate of forward and backward reaction is the same. Molecular structures of various compounds can help in predicting equilibrium.
In I3–, the three lone pairs of electrons can be placed all equatorial, one axial and two equatorial, or two axial and one equatorial. Determine the total number of each type of 90° repulsive interaction for each placement.
Determine the total number of each type of 90° repulsive interactions for each placement. Placement of three lone pairs
equatorial one axial/ two equatorial two axial/ one equatorial
“We are what we repeatedly do. Excellence, then, is not an act, but a habit.” Aristotle Page 11 of 14
VSEPR- Valence Shell Electron Pair Repulsion Theory, Shapes of Molecules number of each type of 90 degree repulsive interactions
SF6
SF5–
90o LP-LP _______ 90o LP-BP ______ 90o BP-BP ______
90o LP-LP ______ 90o LP-BP ______ 90o BP-BP ______
90o LP-LP ______ 90o LP-BP ______ 90o BP-BP ______
In terms of increasing repulsions between electron pairs, the trend is: BP-BP (least repulsive) > BP-LP > LP-LP (most repulsive).
In order to minimize repulsions between electron pairs situated 90° apart, the three lone pairs of electrons should be placed __________________________________.
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 2 images
