Unsymmetrical tetrahedral t shaped linear angle 90o

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ON CENTRAL ATOM Number of bonded e– pairs Number of lone e– pairs 5 0 4 1 3 2 2 3 Structure Angle Examples Trigonal bipyramidal Unsymmetrical tetrahedral T-shaped Linear 90o, 120 o, 180 o PCl5 ≈ 90o, 120 o, 180 o SF4 90o, 180 o 180 o ClF3 I3 – SHAPES WITH 6 ELECTRON PAIRS (BONDED + LONE PAIRS) ON CENTRAL ATOM Number of bonded e– pairs Number of lone e– pairs 6 0 5 4 1 2 • • • • • Structure Angle Examples Octahedral or square bipyramidal Square pyramidal Square planar 90 o and 180 o SF6 ≈90 o and 180 o 90 o BrF5 XeF4 Note that it is important to specify the angle as both O3 and H2O are bent molecules, but with different angles around the central atoms. A lone e– pair is spread out over a larger volume than a shared e– pair, causing a distortion from regular geometry, and causing the angle to be slightly reduced. A Resonance structure is one of two or more Lewis structures for a species tha...
View Full Document

Ask a homework question - tutors are online