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All results from a given calculation for C5H8 (Cyclobutane, methylene-)

using model chemistry: MP2/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 MP2/cc-pVTZ
 hartrees
Energy at 0K-194.841594
Energy at 298.15K-194.850144
HF Energy-194.008719
Nuclear repulsion energy168.335760
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 MP2/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' 3183 3023 31.06      
2 A' 3177 3017 5.31      
3 A' 3156 2997 8.05      
4 A' 3112 2955 35.06      
5 A' 3090 2934 9.89      
6 A' 1746 1658 17.03      
7 A' 1508 1432 0.04      
8 A' 1484 1410 3.22      
9 A' 1449 1375 1.23      
10 A' 1256 1192 0.43      
11 A' 1229 1167 0.16      
12 A' 1096 1041 1.00      
13 A' 987 937 0.51      
14 A' 909 863 3.47      
15 A' 905 859 38.33      
16 A' 754 716 2.24      
17 A' 663 629 1.81      
18 A' 384 364 5.63      
19 A' 134 127 0.33      
20 A" 3272 3107 6.57      
21 A" 3160 3001 17.50      
22 A" 3087 2931 32.86      
23 A" 1470 1396 4.06      
24 A" 1286 1221 0.01      
25 A" 1252 1189 0.21      
26 A" 1220 1159 0.55      
27 A" 1183 1124 1.60      
28 A" 1048 995 0.21      
29 A" 935 888 1.41      
30 A" 921 874 0.76      
31 A" 817 775 0.07      
32 A" 659 626 0.08      
33 A" 350 332 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 25440.1 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 24155.4 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 MP2/cc-pVTZ
ABC
0.34409 0.15590 0.11829

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.253 -0.383 1.091
C2 0.253 -0.383 -1.091
C3 -0.121 0.605 0.000
C4 0.253 -1.489 0.000
C5 -0.673 1.813 0.000
H6 -0.449 -0.494 1.915
H7 -0.449 -0.494 -1.915
H8 1.247 -0.197 1.497
H9 1.247 -0.197 -1.497
H10 -0.910 2.323 0.924
H11 -0.910 2.323 -0.924
H12 1.099 -2.171 0.000
H13 -0.669 -2.065 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C12.18131.51831.55312.62171.08853.08831.09022.77852.95053.56912.25872.2063
C22.18131.51831.55312.62173.08831.08852.77851.09023.56912.95052.25872.2063
C31.51831.51832.12671.32912.23202.23202.18072.18072.10502.10503.03212.7252
C41.55311.55312.12673.42982.26912.26912.21352.21354.09154.09151.08671.0872
C52.62172.62171.32913.42983.00703.00703.15783.15781.08191.08194.36113.8783
H61.08853.08832.23202.26913.00703.82941.77243.82203.02194.02652.97912.4862
H73.08831.08852.23202.26913.00703.82943.82201.77244.02653.02192.97912.4862
H81.09022.77852.18072.21353.15781.77243.82202.99423.36634.10712.48243.0666
H92.77851.09022.18072.21353.15783.82201.77242.99424.10713.36632.48243.0666
H102.95053.56912.10504.09151.08193.02194.02653.36634.10711.84905.00914.4911
H113.56912.95052.10504.09151.08194.02653.02194.10713.36631.84905.00914.4911
H122.25872.25873.03211.08674.36112.97912.97912.48242.48245.00915.00911.7710
H132.20632.20632.72521.08723.87832.48622.48623.06663.06664.49114.49111.7710

picture of Cyclobutane, methylene- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C2 91.833 C1 C3 C5 133.960
C1 C4 C2 89.215 C1 C4 H12 116.554
C1 C4 H13 112.160 C2 C3 C5 133.960
C2 C4 H12 116.554 C2 C4 H13 112.160
C3 C1 C4 87.637 C3 C1 H6 116.829
C3 C1 H8 112.404 C3 C2 C4 87.637
C3 C2 H7 116.829 C3 C2 H9 112.404
C3 C5 H10 121.298 C3 C5 H11 121.298
C4 C1 H6 117.324 C4 C1 H8 112.560
C4 C2 H7 117.324 C4 C2 H9 112.560
H6 C1 H8 108.883 H7 C2 H9 108.883
H10 C5 H11 117.404 H12 C4 H13 109.110
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability