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All results from a given calculation for C5H8 (Bicyclo[1.1.1]pentane)

using model chemistry: B2PLYP=FULL/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at B2PLYP=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-195.059193
Energy at 298.15K 
HF Energy-194.814070
Nuclear repulsion energy178.705439
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B2PLYP=FULL/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1' 3126 3007 0.00      
2 A1' 3069 2951 0.00      
3 A1' 1550 1491 0.00      
4 A1' 1127 1084 0.00      
5 A1' 911 876 0.00      
6 A1" 996 958 0.00      
7 A2' 3133 3013 0.00      
8 A2' 954 918 0.00      
9 A2" 3121 3001 132.14      
10 A2" 1248 1200 36.21      
11 A2" 847 815 3.87      
12 E' 3138 3018 69.92      
12 E' 3138 3018 69.93      
13 E' 3064 2947 83.66      
13 E' 3064 2947 83.67      
14 E' 1499 1442 0.38      
14 E' 1499 1442 0.38      
15 E' 1256 1208 1.97      
15 E' 1256 1208 1.97      
16 E' 1110 1067 0.44      
16 E' 1110 1067 0.44      
17 E' 903 869 0.43      
17 E' 903 869 0.43      
18 E' 541 520 0.12      
18 E' 541 520 0.12      
19 E" 1205 1159 0.00      
19 E" 1205 1159 0.00      
20 E" 1141 1097 0.00      
20 E" 1141 1097 0.00      
21 E" 1021 982 0.00      
21 E" 1021 982 0.00      
22 E" 787 757 0.00      
22 E" 787 757 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25704.7 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 24722.7 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULL/aug-cc-pVDZ
ABC
0.23912 0.23912 0.20691

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/aug-cc-pVDZ

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.944
C2 0.000 1.242 0.000
C3 1.076 -0.621 0.000
C4 -1.076 -0.621 0.000
C5 0.000 0.000 -0.944
H6 0.000 0.000 2.040
H7 0.000 0.000 -2.040
H8 0.908 1.860 0.000
H9 -0.908 1.860 0.000
H10 1.156 -1.717 0.000
H11 2.065 -0.143 0.000
H12 -2.065 -0.143 0.000
H13 -1.156 -1.717 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.56021.56021.56021.88731.09682.98412.27472.27472.27472.27472.27472.2747
C21.56022.15202.15201.56022.38892.38891.09831.09833.17692.48652.48653.1769
C31.56022.15202.15201.56022.38892.38892.48653.17691.09831.09833.17692.4865
C41.56022.15202.15201.56022.38892.38893.17692.48652.48653.17691.09831.0983
C51.88731.56021.56021.56022.98411.09682.27472.27472.27472.27472.27472.2747
H61.09682.38892.38892.38892.98414.08092.90642.90642.90642.90642.90642.9064
H72.98412.38892.38892.38891.09684.08092.90642.90642.90642.90642.90642.9064
H82.27471.09832.48653.17692.27472.90642.90641.81693.58482.31253.58484.1295
H92.27471.09833.17692.48652.27472.90642.90641.81694.12953.58482.31253.5848
H102.27473.17691.09832.48652.27472.90642.90643.58484.12951.81693.58482.3125
H112.27472.48651.09833.17692.27472.90642.90642.31253.58481.81694.12953.5848
H122.27472.48653.17691.09832.27472.90642.90643.58482.31253.58484.12951.8169
H132.27473.17692.48651.09832.27472.90642.90644.12953.58482.31253.58481.8169

picture of Bicyclo[1.1.1]pentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 74.434 C1 C2 H8 116.585
C1 C2 H9 116.585 C1 C3 C5 74.434
C1 C3 H10 116.585 C1 C3 H11 116.585
C1 C4 C5 74.434 C1 C4 H12 116.585
C1 C4 H13 116.585 C2 C1 C3 87.206
C2 C1 C4 87.206 C2 C1 H6 127.217
C2 C5 C3 87.206 C2 C5 C4 87.206
C2 C5 H7 127.217 C3 C1 C4 87.206
C3 C1 H6 127.217 C3 C5 C4 87.206
C3 C5 H7 127.217 C4 C1 H6 127.217
C4 C5 H7 127.217 C5 C2 H8 116.585
C5 C2 H9 116.585 C5 C3 H10 116.585
C5 C3 H11 116.585 C5 C4 H12 116.585
C5 C4 H13 116.585 H8 C2 H9 111.615
H10 C3 H11 111.615 H12 C4 H13 111.615
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability