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All results from a given calculation for C5H8 (Cyclopentene)

using model chemistry: B3LYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/aug-cc-pVTZ
 hartrees
Energy at 0K-195.401185
Energy at 298.15K-195.410128
HF Energy-195.401185
Nuclear repulsion energy171.411896
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 B3LYP/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3191 3088 21.18      
2 A' 3090 2989 40.76      
3 A' 3056 2956 53.01      
4 A' 3035 2937 3.63      
5 A' 2997 2899 29.98      
6 A' 1675 1621 3.74      
7 A' 1510 1461 2.40      
8 A' 1486 1438 1.11      
9 A' 1328 1284 0.90      
10 A' 1233 1193 1.76      
11 A' 1130 1093 0.11      
12 A' 1072 1037 8.16      
13 A' 972 941 1.06      
14 A' 902 872 0.50      
15 A' 819 792 1.16      
16 A' 716 693 34.75      
17 A' 619 599 12.27      
18 A' 135 130 0.20      
19 A" 3167 3064 7.75      
20 A" 3044 2945 36.61      
21 A" 2999 2901 52.79      
22 A" 1490 1442 2.47      
23 A" 1382 1337 1.70      
24 A" 1321 1278 0.07      
25 A" 1311 1269 2.18      
26 A" 1227 1187 0.04      
27 A" 1155 1117 1.41      
28 A" 1034 1000 2.21      
29 A" 979 948 0.05      
30 A" 916 887 6.60      
31 A" 891 862 4.35      
32 A" 786 760 0.35      
33 A" 394 381 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 25528.5 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 24698.8 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 B3LYP/aug-cc-pVTZ
ABC
0.24432 0.24189 0.13154

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.254 -1.206 0.000
C2 -0.066 -0.325 1.232
C3 -0.066 -0.325 -1.232
C4 -0.066 1.072 0.664
C5 -0.066 1.072 -0.664
H6 1.317 -1.453 0.000
H7 -0.296 -2.145 0.000
H8 -1.046 -0.563 1.661
H9 -1.046 -0.563 -1.661
H10 -0.101 1.957 1.284
H11 -0.101 1.957 -1.284
H12 0.661 -0.456 -2.037
H13 0.661 -0.456 2.037

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.54811.54812.39382.39381.09071.08922.20452.20453.43223.43222.20852.2085
C21.54812.46501.50802.35562.16832.21041.09573.06392.28323.39793.35201.0919
C31.54812.46502.35561.50802.16832.21043.06391.09573.39792.28321.09193.3520
C42.39381.50802.35561.32852.95403.29312.15103.00651.08172.14083.18752.1789
C52.39382.35561.50801.32852.95403.29313.00652.15102.14081.08172.17893.1875
H61.09072.16832.16832.95402.95401.75533.02143.02143.91023.91022.36102.3610
H71.08922.21042.21043.29313.29311.75532.41292.41294.30354.30352.81432.8143
H82.20451.09573.06392.15103.00653.02142.41293.32142.71793.98994.07411.7506
H92.20453.06391.09573.00652.15103.02142.41293.32143.98992.71791.75064.0741
H103.43222.28323.39791.08172.14083.91024.30352.71793.98992.56904.17602.6404
H113.43223.39792.28322.14081.08173.91024.30353.98992.71792.56902.64044.1760
H122.20853.35201.09193.18752.17892.36102.81434.07411.75064.17602.64044.0746
H132.20851.09193.35202.17893.18752.36102.81431.75064.07412.64044.17604.0746

picture of Cyclopentene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 103.114 C1 C2 H8 111.853
C1 C2 H13 112.403 C1 C3 C5 103.114
C1 C3 H9 111.853 C1 C3 H12 112.403
C2 C1 C3 105.521 C2 C1 H6 109.278
C2 C1 H7 112.726 C2 C4 C5 112.137
C2 C4 H10 122.834 C3 C1 H6 109.278
C3 C1 H7 112.726 C3 C5 C4 112.137
C3 C5 H11 122.834 C4 C2 H8 110.403
C4 C2 H13 112.891 C4 C5 H11 124.988
C5 C3 H9 110.403 C5 C3 H12 112.891
C5 C4 H10 124.988 H6 C1 H7 107.265
H8 C2 H13 106.302 H9 C3 H12 106.302
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability