Trigonal planar geometry molecular

Molecular geometry - trigonal planar (g) Electron group geometry for left carbon - tetrahedral... 

Electron-domain geometry trigonal planar, molecular geometry trigonal planar... 

When there are three electron groups around the central atom, it is sp hybridized. AB molecules and ions with no lone pairs on the central atom have trigonal planar electronic geometry, trigonal planar molecular geometry and sp hybridization on the central atom. 

Electron geometry = Trigonal planar Molecular geometry = Bent... 

Three electron pairs, all bonding, yield the same electron-pair and molecular geometries trigonal (triangular) planar (Line 2). Each bond angle is 120°. 

The Lewis formula for the molecule (type AB2U) predicts 3 electron groups around the central N atom including 1 lone pair of electrons. The electronic geometry is trigonal planar and the molecular geometry is angular or bent (Table 8-3). 

This molecule (type AB3) has a trigonal planar electronic geometry and trigonal planar molecular geometry. The B-Cl bonds are polar, but since the molecule is symmetrical, the bond dipoles cancel to give a nonpolar molecule (Section 8-6). 

This molecule (type AB2U) has a trigonal planar electronic geometry and an angular molecular geometry. F (EN = 4.0) is more electronegative than Sn (EN = 1.8). The Sn-F bond dipoles lessens the effect of the lone pair of electrons and so, SnF2 is polar, but not extremely so (Table 8-3). 

The Lewis dot formula predicts 3 regions of high electron density, trigonal planar electronic geometry and angular molecular geometry around each N atom. The N atoms have sp2 hybridization (Sections 8-13 and 28-15). The three-dimensional structure is shown below. 

This molecule is of the type AX2E it has a trigonal planar electron-group geometry and a bent molecular shape. 

Hybridization. A satisfactory description of covalent bonding should also be able to account for molecular geometry, that is, for the mutual directions of bonds. Let us take for an example boron trifluoride, which is a trigonal planar molecule. Boron uses three orbitals to form three completely equivalent bonds to fluorine atoms. 

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