return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C4H8O (Cyclobutanol)

using model chemistry: PBEPBE/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-232.213422
Energy at 298.15K-232.222836
Nuclear repulsion energy185.753736
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 PBEPBE/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 3697 3671 13.12      
2 A 3062 3040 46.04      
3 A 3046 3025 7.95      
4 A 3028 3008 14.64      
5 A 3004 2983 28.00      
6 A 2997 2976 34.64      
7 A 2980 2959 50.51      
8 A 2922 2902 80.27      
9 A 1445 1435 2.89      
10 A 1419 1409 1.64      
11 A 1405 1395 4.66      
12 A 1359 1349 5.71      
13 A 1280 1271 35.65      
14 A 1235 1226 5.31      
15 A 1223 1215 4.32      
16 A 1208 1200 2.23      
17 A 1201 1192 14.70      
18 A 1186 1177 19.76      
19 A 1130 1122 14.29      
20 A 1114 1107 9.57      
21 A 1030 1023 14.88      
22 A 1003 996 27.86      
23 A 927 921 0.96      
24 A 916 910 23.94      
25 A 897 891 4.43      
26 A 860 854 8.62      
27 A 808 802 4.06      
28 A 723 718 0.37      
29 A 657 652 1.83      
30 A 392 389 10.60      
31 A 377 375 10.51      
32 A 289 287 100.03      
33 A 113 112 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 24465.0 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 24296.2 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 PBEPBE/cc-pVTZ
ABC
0.28407 0.15831 0.13131

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.172 0.005 -1.581
H2 -2.416 0.025 -0.303
C3 -1.336 0.013 -0.497
H4 -0.950 1.471 1.128
H5 -0.121 1.943 -0.384
C6 -0.474 1.091 0.213
H7 1.008 -0.006 1.547
C8 0.581 -0.008 0.529
H9 -0.974 -1.442 1.138
H10 -0.141 -1.931 -0.368
C11 -0.493 -1.075 0.222
H12 2.173 0.682 -0.368
O13 1.615 -0.109 -0.451

Atom - Atom Distances (Å)
  H1 H2 C3 H4 H5 C6 H7 C8 H9 H10 C11 H12 O13
H11.78391.09663.08872.50962.21103.81382.74413.08682.50632.20913.62283.0102
H21.78391.09702.50712.99242.27483.89223.11072.51153.00092.27704.63634.0363
C31.09661.09702.21742.28441.55303.11102.17512.21862.28531.55323.57512.9546
H43.08872.50712.21741.78811.09922.48792.21142.91323.80312.74113.55143.4015
H52.50962.99242.28441.78811.09892.96702.26613.80903.87423.10152.61772.6888
C62.21102.27481.55301.09921.09892.27571.55602.74313.09512.16672.74032.4990
H73.81383.89223.11102.48792.96702.27571.10422.48252.94922.27072.34462.0917
C82.74413.11072.17512.21142.26611.55601.10422.20162.24131.54521.95321.4288
H93.08682.51152.21862.91323.80902.74312.48252.20161.78941.09814.08493.3184
H102.50633.00092.28533.80313.87423.09512.94922.24131.78941.09703.49032.5322
C112.20912.27701.55322.74113.10152.16672.27071.54521.09811.09703.24722.4152
H123.62284.63633.57513.55142.61772.74032.34461.95324.08493.49033.24720.9713
O133.01024.03632.95463.40152.68882.49902.09171.42883.31842.53222.41520.9713

picture of Cyclobutanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 90.462 C1 C2 H7 74.179
C1 C2 H8 61.307 C1 C3 C4 134.702
C1 C3 H9 134.393 C1 C3 H10 88.360
C1 O5 H13 70.675 C2 C1 C3 35.599
C2 C1 O5 86.631 C2 C1 H6 68.461
C2 C4 C3 25.933 C2 C4 H11 51.188
C2 C4 H12 98.387 C3 C1 O5 65.500
C3 C1 H6 40.644 C3 C4 H11 34.502
C3 C4 H12 72.456 C4 C2 H7 38.635
C4 C2 H8 44.780 C4 C3 H9 82.102
C4 C3 H10 115.259 O5 C1 H6 25.944
H7 C2 H8 12.871 H9 C3 H10 46.790
H11 C4 H12 60.520
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.078      
2 H 0.082      
3 C -0.150      
4 H 0.068      
5 H 0.072      
6 C -0.157      
7 H 0.053      
8 C 0.062      
9 H 0.076      
10 H 0.077      
11 C -0.132      
12 H 0.193      
13 O -0.321      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.126 1.109 0.805 1.376
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.038 3.105 0.393
y 3.105 -31.512 -0.535
z 0.393 -0.535 -31.962
Traceless
 xyz
x 0.700 3.105 0.393
y 3.105 -0.012 -0.535
z 0.393 -0.535 -0.688
Polar
3z2-r2-1.375
x2-y20.475
xy3.105
xz0.393
yz-0.535


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.088 0.177 0.053
y 0.177 7.872 -0.014
z 0.053 -0.014 7.200


<r2> (average value of r2) Å2
<r2> 110.664
(<r2>)1/2 10.520