Structure: 1   Energy = -17.9 ± 0.8
Structure: 2   Energy = -17.6 ± 1.1
Structure: 3   Energy = -15.2 ± 0.8
Structure: 4   Energy = -15.6 ± 1.1
Structure: 5   Energy = -14.7 ± 1.1
Structure: 6   Energy = -14.5 ± 0.7
