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

using model chemistry: B3LYP/6-311G*

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/6-311G*
 hartrees
Energy at 0K-195.336302
Energy at 298.15K-195.344719
Nuclear repulsion energy167.267549
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/6-311G*
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' 3123 3017 12.15      
2 A' 3116 3011 59.66      
3 A' 3078 2974 26.05      
4 A' 3063 2960 46.91      
5 A' 3036 2934 11.11      
6 A' 1748 1689 23.54      
7 A' 1515 1464 0.16      
8 A' 1488 1438 1.72      
9 A' 1446 1398 1.12      
10 A' 1267 1224 0.05      
11 A' 1230 1189 0.12      
12 A' 1100 1063 0.26      
13 A' 970 938 0.73      
14 A' 895 865 45.56      
15 A' 881 852 0.77      
16 A' 748 723 1.69      
17 A' 669 647 1.48      
18 A' 380 367 7.27      
19 A' 85 82 0.02      
20 A" 3199 3092 18.86      
21 A" 3082 2978 17.24      
22 A" 3032 2930 59.80      
23 A" 1476 1427 5.12      
24 A" 1286 1243 0.01      
25 A" 1249 1207 0.00      
26 A" 1229 1187 1.30      
27 A" 1196 1155 2.67      
28 A" 1054 1019 0.10      
29 A" 928 897 0.94      
30 A" 908 878 1.53      
31 A" 816 788 0.05      
32 A" 641 619 0.05      
33 A" 355 343 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 25144.0 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 24296.7 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 B3LYP/6-311G*
ABC
0.34881 0.15301 0.11461

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.148 -0.425 1.095
C2 0.148 -0.425 -1.095
C3 0.000 0.624 0.000
C4 -0.013 -1.524 0.000
C5 -0.284 1.918 0.000
H6 -0.593 -0.406 1.899
H7 -0.593 -0.406 -1.899
H8 1.144 -0.426 1.551
H9 1.144 -0.426 -1.551
H10 -0.407 2.475 0.925
H11 -0.407 2.475 -0.925
H12 0.729 -2.324 0.000
H13 -1.009 -1.971 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C12.19041.52361.56002.62251.09313.08421.09522.82712.95703.57722.26822.2201
C22.19041.52361.56002.62253.08421.09312.82711.09523.57722.95702.26822.2201
C31.52361.52362.14811.32532.24002.24002.19422.19422.10862.10863.03702.7845
C41.56001.56002.14813.45332.27842.27842.22472.22474.12334.12331.09131.0916
C52.62252.62251.32533.45333.01733.01733.15243.15241.08631.08634.36203.9569
H61.09313.08422.24002.27843.01733.79701.77173.86193.04664.03823.00542.4953
H73.08421.09312.24002.27843.01733.79703.86191.77174.03823.04663.00542.4953
H81.09522.82712.19422.22473.15241.77173.86193.10133.34774.11642.48623.0704
H92.82711.09522.19422.22473.15243.86191.77173.10134.11643.34772.48623.0704
H102.95703.57722.10864.12331.08633.04664.03823.34774.11641.85015.01754.5810
H113.57722.95702.10864.12331.08634.03823.04664.11643.34771.85015.01754.5810
H122.26822.26823.03701.09134.36203.00543.00542.48622.48625.01755.01751.7734
H132.22012.22012.78451.09163.95692.49532.49533.07043.07044.58104.58101.7734

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 91.915 C1 C3 C5 133.883
C1 C4 C2 89.184 C1 C4 H12 116.522
C1 C4 H13 112.500 C2 C3 C5 133.883
C2 C4 H12 116.522 C2 C4 H13 112.500
C3 C1 C4 88.305 C3 C1 H6 116.787
C3 C1 H8 112.804 C3 C2 C4 88.305
C3 C2 H7 116.787 C3 C2 H9 112.804
C3 C5 H10 121.620 C3 C5 H11 121.620
C4 C1 H6 117.266 C4 C1 H8 112.654
C4 C2 H7 117.266 C4 C2 H9 112.654
H6 C1 H8 108.122 H7 C2 H9 108.122
H10 C5 H11 116.759 H12 C4 H13 108.661
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.455     -0.068
2 C -0.455     -0.068
3 C 0.129     0.248
4 C -0.413     -0.100
5 C -0.480     -0.727
6 H 0.213     0.041
7 H 0.213     0.041
8 H 0.218     0.039
9 H 0.218     0.039
10 H 0.197     0.236
11 H 0.197     0.236
12 H 0.206     0.038
13 H 0.212     0.045


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.067 -0.515 0.000 0.519
CHELPG        
AIM        
ESP 0.094 -0.518 0.000 0.527


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.523 -0.526 0.000
y -0.526 -32.217 0.000
z 0.000 0.000 -31.045
Traceless
 xyz
x -0.892 -0.526 0.000
y -0.526 -0.433 0.000
z 0.000 0.000 1.325
Polar
3z2-r22.650
x2-y2-0.306
xy-0.526
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.354 0.002 -0.358
y 0.002 7.816 -0.001
z -0.358 -0.001 5.916


<r2> (average value of r2) Å2
<r2> 116.765
(<r2>)1/2 10.806