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

using model chemistry: MP2/cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-194.642937
Energy at 298.15K-194.651470
HF Energy-193.955304
Nuclear repulsion energy166.967030
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-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 A' 3190 3038 35.38      
2 A' 3184 3033 5.22      
3 A' 3162 3012 10.18      
4 A' 3114 2966 36.80      
5 A' 3092 2945 11.10      
6 A' 1757 1674 11.42      
7 A' 1494 1423 0.06      
8 A' 1466 1397 2.85      
9 A' 1439 1371 1.26      
10 A' 1259 1199 0.01      
11 A' 1222 1164 0.06      
12 A' 1090 1038 0.91      
13 A' 994 947 0.38      
14 A' 911 868 0.07      
15 A' 890 848 35.35      
16 A' 756 720 2.16      
17 A' 661 630 1.51      
18 A' 380 362 5.19      
19 A' 139 133 0.29      
20 A" 3288 3132 7.90      
21 A" 3166 3016 16.19      
22 A" 3089 2943 36.09      
23 A" 1454 1385 2.92      
24 A" 1289 1228 0.16      
25 A" 1250 1191 0.15      
26 A" 1211 1153 0.43      
27 A" 1185 1129 1.09      
28 A" 1042 992 0.18      
29 A" 943 898 1.07      
30 A" 921 877 0.48      
31 A" 813 775 0.11      
32 A" 654 623 0.10      
33 A" 348 331 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 25425.8 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 24218.1 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 MP2/cc-pVDZ
ABC
0.33932 0.15331 0.11647

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.245 -0.416 1.090
C2 0.245 -0.416 -1.090
C3 0.000 0.622 0.000
C4 -0.021 -1.500 0.000
C5 -0.471 1.880 0.000
H6 -0.400 -0.395 1.983
H7 -0.400 -0.395 -1.983
H8 1.303 -0.423 1.408
H9 1.303 -0.423 -1.408
H10 -0.669 2.408 0.938
H11 -0.669 2.408 -0.938
H12 0.620 -2.395 0.000
H13 -1.079 -1.806 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C12.18081.52551.56032.64081.10223.14101.10472.71282.97283.59582.29052.2078
C22.18081.52551.56032.64083.14101.10222.71281.10473.59582.97282.29052.2078
C31.52551.52552.12241.34302.26472.26472.18462.18462.12572.12573.08062.6571
C41.56031.56032.12243.40982.30212.30212.21232.21234.07154.07151.10111.1018
C52.64082.64081.34303.40983.01893.01893.22993.22991.09501.09504.41223.7357
H61.10223.14102.26472.30213.01893.96691.79873.79503.00394.05802.99622.5270
H73.14101.10222.26472.30213.01893.96693.79501.79874.05803.00392.99622.5270
H81.10472.71282.18462.21233.22991.79873.79502.81513.48264.17262.51743.0936
H92.71281.10472.18462.21233.22993.79501.79872.81514.17263.48262.51743.0936
H102.97283.59582.12574.07151.09503.00394.05803.48264.17261.87655.06154.3368
H113.59582.97282.12574.07151.09504.05803.00394.17263.48261.87655.06154.3368
H122.29052.29053.08061.10114.41222.99622.99622.51742.51745.06155.06151.7990
H132.20782.20782.65711.10183.73572.52702.52703.09363.09364.33684.33681.7990

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 91.248 C1 C3 C5 133.931
C1 C4 C2 88.666 C1 C4 H12 117.742
C1 C4 H13 110.888 C2 C3 C5 133.931
C2 C4 H12 117.742 C2 C4 H13 110.888
C3 C1 C4 86.901 C3 C1 H6 118.159
C3 C1 H8 111.309 C3 C2 C4 86.901
C3 C2 H7 118.159 C3 C2 H9 111.309
C3 C5 H10 121.033 C3 C5 H11 121.033
C4 C1 H6 118.670 C4 C1 H8 111.074
C4 C2 H7 118.670 C4 C2 H9 111.074
H6 C1 H8 109.182 H7 C2 H9 109.182
H10 C5 H11 117.933 H12 C4 H13 109.502
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability