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

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-194.015242
Energy at 298.15K-194.024024
HF Energy-194.015242
Nuclear repulsion energy168.641332
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 HF/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 A' 3274 2968 9.11      
2 A' 3251 2947 70.84      
3 A' 3224 2922 17.51      
4 A' 3198 2899 47.93      
5 A' 3180 2882 15.17      
6 A' 1882 1706 34.12      
7 A' 1625 1473 0.16      
8 A' 1595 1446 2.40      
9 A' 1557 1412 1.19      
10 A' 1384 1255 2.43      
11 A' 1326 1202 0.55      
12 A' 1198 1086 0.70      
13 A' 1032 935 45.12      
14 A' 1026 930 11.18      
15 A' 952 863 0.25      
16 A' 795 720 1.08      
17 A' 713 646 2.56      
18 A' 419 380 7.56      
19 A' 113 102 0.06      
20 A" 3351 3037 15.36      
21 A" 3229 2927 25.01      
22 A" 3177 2880 56.57      
23 A" 1586 1437 3.56      
24 A" 1405 1274 0.04      
25 A" 1357 1230 0.09      
26 A" 1329 1204 0.40      
27 A" 1296 1175 1.14      
28 A" 1126 1020 0.12      
29 A" 984 892 1.12      
30 A" 979 887 1.55      
31 A" 872 790 0.03      
32 A" 694 629 0.06      
33 A" 382 346 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 26755.0 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 24250.7 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 HF/Def2TZVPP
ABC
0.35197 0.15571 0.11695

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.226 -0.390 1.088
C2 0.226 -0.390 -1.088
C3 -0.106 0.613 0.000
C4 0.226 -1.494 0.000
C5 -0.604 1.825 0.000
H6 -0.488 -0.489 1.895
H7 -0.488 -0.489 -1.895
H8 1.209 -0.225 1.514
H9 1.209 -0.225 -1.514
H10 -0.819 2.343 0.917
H11 -0.819 2.343 -0.917
H12 1.066 -2.174 0.000
H13 -0.689 -2.070 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C12.17701.51671.55032.60371.08153.06911.08362.78702.93053.54682.25212.2011
C22.17701.51671.55032.60373.06911.08152.78701.08363.54682.93052.25212.2011
C31.51671.51672.13251.31052.22462.22462.17322.17322.08362.08363.02282.7453
C41.55031.55032.13253.42102.26062.26062.20672.20674.08054.08051.08051.0813
C52.60372.60371.31053.42102.99282.99283.12723.12721.07461.07464.33343.8960
H61.08153.06912.22462.26062.99283.78961.75873.81713.01354.00382.97392.4762
H73.06911.08152.22462.26062.99283.78963.81711.75874.00383.01352.97392.4762
H81.08362.78702.17322.20673.12721.75873.81713.02863.32554.07592.47243.0496
H92.78701.08362.17322.20673.12723.81711.75873.02864.07593.32552.47243.0496
H102.93053.54682.08364.08051.07463.01354.00383.32554.07591.83384.97904.5087
H113.54682.93052.08364.08051.07464.00383.01354.07593.32551.83384.97904.5087
H122.25212.25213.02281.08054.33342.97392.97392.47242.47244.97904.97901.7578
H132.20112.20112.74531.08133.89602.47622.47623.04963.04964.50874.50871.7578

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 91.727 C1 C3 C5 134.002
C1 C4 C2 89.196 C1 C4 H12 116.622
C1 C4 H13 112.301 C2 C3 C5 134.002
C2 C4 H12 116.622 C2 C4 H13 112.301
C3 C1 C4 88.097 C3 C1 H6 116.797
C3 C1 H8 112.316 C3 C2 C4 88.097
C3 C2 H7 116.797 C3 C2 H9 112.316
C3 C5 H10 121.435 C3 C5 H11 121.435
C4 C1 H6 117.291 C4 C1 H8 112.615
C4 C2 H7 117.291 C4 C2 H9 112.615
H6 C1 H8 108.639 H7 C2 H9 108.639
H10 C5 H11 117.129 H12 C4 H13 108.797
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.010      
2 C -0.010      
3 C -0.119      
4 C -0.106      
5 C -0.174      
6 H 0.050      
7 H 0.050      
8 H 0.049      
9 H 0.049      
10 H 0.061      
11 H 0.061      
12 H 0.055      
13 H 0.046      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.217 -0.586 0.000 0.625
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.463 -0.646 0.000
y -0.646 -32.484 0.000
z 0.000 0.000 -31.038
Traceless
 xyz
x -0.702 -0.646 0.000
y -0.646 -0.734 0.000
z 0.000 0.000 1.436
Polar
3z2-r22.873
x2-y20.021
xy-0.646
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.075 -1.410 0.000
y -1.410 10.117 0.000
z 0.000 0.000 7.841


<r2> (average value of r2) Å2
<r2> 115.061
(<r2>)1/2 10.727