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

using model chemistry: B2PLYP=FULLultrafine/6-311+G(3df,2p)

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=FULLultrafine/6-311+G(3df,2p)
 hartrees
Energy at 0K-195.164503
Energy at 298.15K 
HF Energy-194.856957
Nuclear repulsion energy179.826012
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=FULLultrafine/6-311+G(3df,2p)
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' 3117 3117 0.00      
2 A1' 3062 3062 0.00      
3 A1' 1563 1563 0.00      
4 A1' 1129 1129 0.00      
5 A1' 911 911 0.00      
6 A1" 1009 1009 0.00      
7 A2' 3121 3121 0.00      
8 A2' 971 971 0.00      
9 A2" 3112 3112 126.63      
10 A2" 1257 1257 39.27      
11 A2" 854 854 3.81      
12 E' 3126 3126 65.40      
12 E' 3126 3126 65.41      
13 E' 3057 3057 79.57      
13 E' 3057 3057 79.56      
14 E' 1512 1512 0.58      
14 E' 1512 1512 0.58      
15 E' 1268 1268 2.12      
15 E' 1268 1268 2.12      
16 E' 1122 1122 0.35      
16 E' 1122 1122 0.35      
17 E' 910 910 0.40      
17 E' 910 910 0.40      
18 E' 544 544 0.16      
18 E' 544 544 0.16      
19 E" 1223 1223 0.00      
19 E" 1223 1223 0.00      
20 E" 1150 1150 0.00      
20 E" 1150 1150 0.00      
21 E" 1035 1035 0.00      
21 E" 1035 1035 0.00      
22 E" 790 790 0.00      
22 E" 790 790 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25791.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 25791.1 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=FULLultrafine/6-311+G(3df,2p)
ABC
0.24212 0.24212 0.20919

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-311+G(3df,2p)

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.937
C2 0.000 1.236 0.000
C3 1.071 -0.618 0.000
C4 -1.071 -0.618 0.000
C5 0.000 0.000 -0.937
H6 0.000 0.000 2.025
H7 0.000 0.000 -2.025
H8 0.901 1.848 0.000
H9 -0.901 1.848 0.000
H10 1.150 -1.705 0.000
H11 2.051 -0.143 0.000
H12 -2.051 -0.143 0.000
H13 -1.150 -1.705 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.55131.55131.55131.87401.08762.96162.25942.25942.25942.25942.25942.2594
C21.55132.14142.14141.55132.37222.37221.08921.08923.15752.47182.47183.1575
C31.55132.14142.14141.55132.37222.37222.47183.15751.08921.08923.15752.4718
C41.55132.14142.14141.55132.37222.37223.15752.47182.47183.15751.08921.0892
C51.87401.55131.55131.55132.96161.08762.25942.25942.25942.25942.25942.2594
H61.08762.37222.37222.37222.96164.04912.88542.88542.88542.88542.88542.8854
H72.96162.37222.37222.37221.08764.04912.88542.88542.88542.88542.88542.8854
H82.25941.08922.47183.15752.25942.88542.88541.80283.56102.29913.56104.1019
H92.25941.08923.15752.47182.25942.88542.88541.80284.10193.56102.29913.5610
H102.25943.15751.08922.47182.25942.88542.88543.56104.10191.80283.56102.2991
H112.25942.47181.08923.15752.25942.88542.88542.29913.56101.80284.10193.5610
H122.25942.47183.15751.08922.25942.88542.88543.56102.29913.56104.10191.8028
H132.25943.15752.47181.08922.25942.88542.88544.10193.56102.29913.56101.8028

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 74.316 C1 C2 H8 116.577
C1 C2 H9 116.577 C1 C3 C5 74.317
C1 C3 H10 116.577 C1 C3 H11 116.577
C1 C4 C5 74.317 C1 C4 H12 116.577
C1 C4 H13 116.577 C2 C1 C3 87.291
C2 C1 C4 87.291 C2 C1 H6 127.158
C2 C5 C3 87.291 C2 C5 C4 87.291
C2 C5 H7 127.158 C3 C1 C4 87.291
C3 C1 H6 127.158 C3 C5 C4 87.291
C3 C5 H7 127.158 C4 C1 H6 127.158
C4 C5 H7 127.158 C5 C2 H8 116.577
C5 C2 H9 116.577 C5 C3 H10 116.577
C5 C3 H11 116.577 C5 C4 H12 116.577
C5 C4 H13 116.577 H8 C2 H9 111.697
H10 C3 H11 111.697 H12 C4 H13 111.697
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability