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: HF/aug-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 HF/aug-cc-pVTZ
 hartrees
Energy at 0K-231.043492
Energy at 298.15K-231.053455
Nuclear repulsion energy186.193564
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/aug-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 4153 3781 42.46      
2 A 3248 2957 109.44      
3 A 3232 2942 19.88      
4 A 3209 2921 9.69      
5 A 3192 2906 32.11      
6 A 3171 2887 31.10      
7 A 1640 1493 10.59      
8 A 1608 1464 3.06      
9 A 1560 1420 81.45      
10 A 1433 1305 0.41      
11 A 1390 1265 16.53      
12 A 1314 1196 0.60      
13 A 1246 1135 157.18      
14 A 1176 1071 27.14      
15 A 1042 949 8.94      
16 A 973 885 0.93      
17 A 810 737 5.05      
18 A 657 598 3.63      
19 A 490 446 4.31      
20 A 192 175 1.64      
21 A 3227 2938 53.77      
22 A 3166 2882 47.93      
23 A 1599 1455 1.87      
24 A 1424 1296 0.82      
25 A 1375 1252 0.14      
26 A 1359 1237 0.36      
27 A 1297 1180 0.01      
28 A 1133 1031 9.24      
29 A 1014 923 4.88      
30 A 976 889 0.45      
31 A 847 771 0.15      
32 A 421 383 27.53      
33 A 295 269 93.76      

Unscaled Zero Point Vibrational Energy (zpe) 26933.0 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 24519.8 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/aug-cc-pVTZ
ABC
0.34263 0.14528 0.11585

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.116 0.661 0.000
C2 0.116 -0.438 1.076
C3 0.116 -0.438 -1.076
C4 0.656 -1.406 0.000
O5 -0.871 1.638 0.000
H6 1.059 1.190 0.000
H7 0.699 -0.276 1.972
H8 -0.898 -0.698 1.360
H9 0.699 -0.276 -1.972
H10 -0.898 -0.698 -1.360
H11 1.738 -1.445 0.000
H12 0.274 -2.416 0.000
H13 -1.724 1.242 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 H6 H7 H8 H9 H10 H11 H12 H13
C11.53741.53742.13561.38921.08132.25942.17362.25942.17362.65743.08051.9295
C21.53742.15131.54442.53792.16691.08141.08503.10712.65132.19102.25712.7135
C31.53742.15131.54442.53792.16693.10712.65131.08141.08502.19102.25712.7135
C42.13561.54441.54443.40532.62642.27322.18332.27322.18331.08221.08033.5598
O51.38922.53792.53793.40531.98153.16472.70333.16472.70334.03844.21250.9404
H61.08132.16692.16692.62641.98152.48323.04042.48323.04042.72053.69012.7834
H72.25941.08143.10712.27323.16472.48321.76163.94413.71912.51692.94113.4728
H82.17361.08502.65132.18332.70333.04041.76163.71912.72023.05872.48492.5088
H92.25943.10711.08142.27323.16472.48323.94413.71911.76162.51692.94113.4728
H102.17362.65131.08502.18332.70333.04043.71912.72021.76163.05872.48492.5088
H112.65742.19102.19101.08224.03842.72052.51693.05872.51693.05871.75674.3817
H123.08052.25712.25711.08034.21253.69012.94112.48492.94112.48491.75674.1676
H131.92952.71352.71353.55980.94042.78343.47282.50883.47282.50884.38174.1676

picture of Cyclobutanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 87.729 C1 C2 H7 118.213
C1 C2 H8 110.777 C1 C3 C4 87.729
C1 C3 H9 118.213 C1 C3 H10 110.777
C1 O5 H13 110.356 C2 C1 C3 88.796
C2 C1 O5 120.179 C2 C1 H6 110.468
C2 C4 C3 88.292 C2 C4 H11 111.851
C2 C4 H12 117.529 C3 C1 O5 120.179
C3 C1 H6 110.468 C3 C4 H11 111.851
C3 C4 H12 117.529 C4 C2 H7 118.873
C4 C2 H8 111.059 C4 C3 H9 118.873
C4 C3 H10 111.059 O5 C1 H6 105.984
H7 C2 H8 108.805 H9 C3 H10 108.805
H11 C4 H12 108.655
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.465      
2 C -0.783      
3 C -0.783      
4 C -0.585      
5 O -0.743      
6 H 0.433      
7 H 0.398      
8 H 0.217      
9 H 0.398      
10 H 0.217      
11 H 0.217      
12 H 0.390      
13 H 0.159      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.216 -1.711 0.000 1.725
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.918 1.458 0.000
y 1.458 -36.976 0.000
z 0.000 0.000 -32.391
Traceless
 xyz
x 6.766 1.458 0.000
y 1.458 -6.821 0.000
z 0.000 0.000 0.056
Polar
3z2-r20.111
x2-y29.058
xy1.458
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.950 -0.469 0.000
y -0.469 7.397 0.000
z 0.000 0.000 7.323


<r2> (average value of r2) Å2
<r2> 114.535
(<r2>)1/2 10.702