In: Chemistry
determine the electron-group arrangement, molecular shape, and ideal bond angle(s) for each of the following: O3 & H3O+ & NF3
Solution:
A) O3
Ozone is sp2 hybridized due to 2 bond pairs and 1 lone pairs. Thus, electronic geometry is trigonal planar and shape will be bent.
Electron-group geometry = Trigonal planar
Molecular shape = Bent
Bond angle = 116 °
B) H3O+
The hybridization of central oxygen in H3O+ is sp3 and it containd three bond pairs and one lone pairs. Therefore,
Electron-group arrangement = Tetrahedral
Molecular shape = Pyramidal
Bond angle = 109.5 °
C) NF3
Nitrogen in NF3 is sp3 hybridized. It has three bond pairs and one lone pairs. Due to lone pair its shape is compressed from tetrahedral to pyramidal.
Electron-group geometry = Tetrahedral
Molecular shape = Pyramidal
Bond angle = 102°