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

using model chemistry: CISD/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at CISD/Def2TZVPP
 hartrees
Energy at 0K-194.705953
Energy at 298.15K 
HF Energy-193.974800
Nuclear repulsion energy180.995392
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 CISD/Def2TZVPP
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' 3243 3243 0.00      
2 A1' 3174 3174 0.00      
3 A1' 1629 1629 0.00      
4 A1' 1182 1182 0.00      
5 A1' 955 955 0.00      
6 A1" 1056 1056 0.00      
7 A2' 3231 3231 0.00      
8 A2' 1008 1008 0.00      
9 A2" 3236 3236 113.08      
10 A2" 1337 1337 37.47      
11 A2" 902 902 5.59      
12 E' 3237 3237 64.29      
12 E' 3237 3237 64.29      
13 E' 3168 3168 75.22      
13 E' 3168 3168 75.22      
14 E' 1578 1578 0.43      
14 E' 1578 1578 0.43      
15 E' 1345 1345 1.70      
15 E' 1345 1345 1.70      
16 E' 1173 1173 0.48      
16 E' 1173 1173 0.48      
17 E' 960 960 0.60      
17 E' 960 960 0.60      
18 E' 564 564 0.23      
18 E' 564 564 0.23      
19 E" 1287 1287 0.00      
19 E" 1287 1287 0.00      
20 E" 1222 1222 0.00      
20 E" 1222 1222 0.00      
21 E" 1088 1088 0.00      
21 E" 1088 1088 0.00      
22 E" 843 843 0.00      
22 E" 843 843 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 26937.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 26937.4 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 CISD/Def2TZVPP
ABC
0.24521 0.24521 0.21204

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/Def2TZVPP

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.932
C2 0.000 1.228 0.000
C3 1.063 -0.614 0.000
C4 -1.063 -0.614 0.000
C5 0.000 0.000 -0.932
H6 0.000 0.000 2.011
H7 0.000 0.000 -2.011
H8 0.895 1.836 0.000
H9 -0.895 1.836 0.000
H10 1.142 -1.693 0.000
H11 2.037 -0.143 0.000
H12 -2.037 -0.143 0.000
H13 -1.142 -1.693 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.54161.54161.54161.86391.07912.94312.24492.24492.24492.24492.24492.2449
C21.54162.12682.12681.54162.35642.35641.08191.08193.13632.45542.45543.1363
C31.54162.12682.12681.54162.35642.35642.45543.13631.08191.08193.13632.4554
C41.54162.12682.12681.54162.35642.35643.13632.45542.45543.13631.08191.0819
C51.86391.54161.54161.54162.94311.07912.24492.24492.24492.24492.24492.2449
H61.07912.35642.35642.35642.94314.02222.86622.86622.86622.86622.86622.8662
H72.94312.35642.35642.35641.07914.02222.86622.86622.86622.86622.86622.8662
H82.24491.08192.45543.13632.24492.86622.86621.79033.53732.28433.53734.0745
H92.24491.08193.13632.45542.24492.86622.86621.79034.07453.53732.28433.5373
H102.24493.13631.08192.45542.24492.86622.86623.53734.07451.79033.53732.2843
H112.24492.45541.08193.13632.24492.86622.86622.28433.53731.79034.07453.5373
H122.24492.45543.13631.08192.24492.86622.86623.53732.28433.53734.07451.7903
H132.24493.13632.45541.08192.24492.86622.86624.07453.53732.28433.53731.7903

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 74.396 C1 C2 H8 116.577
C1 C2 H9 116.577 C1 C3 C5 74.396
C1 C3 H10 116.577 C1 C3 H11 116.577
C1 C4 C5 74.396 C1 C4 H12 116.577
C1 C4 H13 116.577 C2 C1 C3 87.234
C2 C1 C4 87.234 C2 C1 H6 127.198
C2 C5 C3 87.234 C2 C5 C4 87.234
C2 C5 H7 127.198 C3 C1 C4 87.234
C3 C1 H6 127.198 C3 C5 C4 87.234
C3 C5 H7 127.198 C4 C1 H6 127.198
C4 C5 H7 127.198 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 111.656
H10 C3 H11 111.656 H12 C4 H13 111.656
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability