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

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-194.722444
Energy at 298.15K-194.730926
HF Energy-194.002555
Nuclear repulsion energy168.433679
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/TZVP
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' 3189 3023 20.16      
2 A' 3188 3022 25.64      
3 A' 3162 2998 8.48      
4 A' 3115 2953 39.86      
5 A' 3096 2934 12.64      
6 A' 1750 1659 16.33      
7 A' 1522 1443 0.10      
8 A' 1499 1421 3.16      
9 A' 1464 1388 0.85      
10 A' 1269 1203 0.74      
11 A' 1228 1164 0.35      
12 A' 1095 1038 2.78      
13 A' 988 936 0.61      
14 A' 917 869 0.16      
15 A' 780 740 48.52      
16 A' 762 722 2.18      
17 A' 676 641 1.39      
18 A' 364 345 3.63      
19 A' 121 115 0.57      
20 A" 3284 3113 8.66      
21 A" 3167 3002 21.90      
22 A" 3093 2932 36.99      
23 A" 1487 1409 3.03      
24 A" 1280 1214 0.00      
25 A" 1252 1187 0.74      
26 A" 1184 1122 0.36      
27 A" 1169 1108 1.55      
28 A" 1048 993 0.34      
29 A" 931 882 2.25      
30 A" 920 873 0.28      
31 A" 826 783 0.06      
32 A" 664 629 0.02      
33 A" 355 337 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 25421.4 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 24096.9 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/TZVP
ABC
0.34078 0.15676 0.11937

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.319 -0.352 1.086
C2 0.319 -0.352 -1.086
C3 -0.150 0.599 0.000
C4 0.319 -1.462 0.000
C5 -0.850 1.728 0.000
H6 -0.329 -0.485 1.952
H7 -0.329 -0.485 -1.952
H8 1.332 -0.119 1.422
H9 1.332 -0.119 -1.422
H10 -1.143 2.208 0.925
H11 -1.143 2.208 -0.925
H12 1.158 -2.156 0.000
H13 -0.617 -2.020 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C12.17191.51751.55322.62161.09013.10961.09222.71482.95233.56882.26702.1993
C22.17191.51751.55322.62163.10961.09012.71481.09223.56882.95232.26702.1993
C31.51751.51752.11371.32902.24062.24062.17552.17552.10542.10543.04972.6601
C41.55321.55322.11373.39792.27722.27722.20262.20264.05764.05761.08911.0892
C52.62162.62161.32903.39792.99742.99743.19343.19341.08281.08284.37293.7552
H61.09013.10962.24062.27722.99743.90491.78133.77882.99544.02502.96902.4998
H73.10961.09012.24062.27722.99743.90493.77881.78134.02502.99542.96902.4998
H81.09222.71482.17552.20263.19341.78133.77882.84423.43354.12952.49013.0710
H92.71481.09222.17552.20263.19343.77881.78132.84424.12953.43352.49013.0710
H102.95233.56882.10544.05761.08282.99544.02503.43354.12951.85095.01984.3598
H113.56882.95232.10544.05761.08284.02502.99544.12953.43351.85095.01984.3598
H122.26702.26703.04971.08914.37292.96902.96902.49012.49015.01985.01981.7804
H132.19932.19932.66011.08923.75522.49982.49983.07103.07104.35984.35981.7804

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 91.390 C1 C3 C5 134.039
C1 C4 C2 88.725 C1 C4 H12 117.095
C1 C4 H13 111.469 C2 C3 C5 134.039
C2 C4 H12 117.095 C2 C4 H13 111.469
C3 C1 C4 86.994 C3 C1 H6 117.530
C3 C1 H8 111.914 C3 C2 C4 86.994
C3 C2 H7 117.530 C3 C2 H9 111.914
C3 C5 H10 121.273 C3 C5 H11 121.273
C4 C1 H6 117.910 C4 C1 H8 111.551
C4 C2 H7 117.910 C4 C2 H9 111.551
H6 C1 H8 109.424 H7 C2 H9 109.424
H10 C5 H11 117.452 H12 C4 H13 109.632
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability