41. The H O H bond angle is approximately 113? and the center of mass is very close to the oxygen atom. 42. Now that the connection between hybridisation and bond angles has been made, Bent s rule can be applied to specific examples. 43. Angle strain occurs when bond angles deviate from the ideal bond angles to achieve maximum bond strength in a specific chemical conformation. 44. Extremely short loops of three residues can be determined from geometry alone, provided that the bond lengths and bond angles are specified. 45. For other molecules, if the spectra can be resolved and individual transitions assigned both bond lengths and bond angles can be deduced. 46. The nitronium ion is isoelectronic with carbon dioxide and nitrous oxide, and has the same linear structure and bond angle of 180? 47. Angle strain occurs when bond angles deviate from the ideal bond angles to achieve maximum bond strength in a specific chemical conformation. 48. The C O C bond angle in the functional group is about 110? and the C O dipoles do not cancel out. 49. When any three carbon atoms form electronic bonds to each other, they are most comfortable if the bond angle is 109 . 5 degrees.
