Bond Lengths and Angles H 1.33A H 1.54A H HH C)116.6° H 121 H H H ethylene ethane Hybrid orbitals have more s character Pi overlap brings carbon atoms closer Bond angle with pi orbitals increases Angle c=C-His121.7° Angle H-C-H is116.6° => Chapter 7Chapter 7 4 Bond Lengths and Angles • Hybrid orbitals have more s character. • Pi overlap brings carbon atoms closer. • Bond angle with pi orbitals increases. ➢Angle C=C-H is 121.7 ➢Angle H-C-H is 116. 6 =>