Structure: 1   Energy = -20.1 ± 0.9
Structure: 2   Energy = -19.3 ± 0.7
Structure: 3   Energy = -21.4 ± 0.9
Structure: 4   Energy = -21.2 ± 0.9
Structure: 5   Energy = -21.1 ± 1.5
Structure: 6   Energy = -20.1 ± 1.9
