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All results from a given calculation for C4H8O (Cyclobutanol)

using model chemistry: HF/3-21G*

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/3-21G*
 hartrees
Energy at 0K-229.668133
Energy at 298.15K-229.678012
Nuclear repulsion energy183.652811
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/3-21G*
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 3867 3490 8.04      
2 A 3320 2996 65.57      
3 A 3305 2983 5.06      
4 A 3284 2964 8.81      
5 A 3254 2937 23.61      
6 A 3233 2918 19.00      
7 A 1658 1497 4.50      
8 A 1636 1476 8.32      
9 A 1524 1376 58.37      
10 A 1457 1315 1.42      
11 A 1382 1247 26.29      
12 A 1325 1196 1.13      
13 A 1200 1083 107.74      
14 A 1162 1049 68.10      
15 A 1003 905 8.80      
16 A 952 860 0.50      
17 A 796 718 8.15      
18 A 659 595 3.63      
19 A 461 416 6.43      
20 A 171 155 2.52      
21 A 3299 2978 24.19      
22 A 3228 2914 34.97      
23 A 1624 1466 5.12      
24 A 1433 1293 0.05      
25 A 1402 1266 1.16      
26 A 1373 1240 0.27      
27 A 1301 1175 0.06      
28 A 1124 1014 7.15      
29 A 1003 905 24.44      
30 A 937 846 0.32      
31 A 844 762 0.95      
32 A 397 358 68.86      
33 A 344 310 96.29      

Unscaled Zero Point Vibrational Energy (zpe) 26978.5 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 24350.8 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/3-21G*
ABC
0.33399 0.14059 0.11222

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.124 0.671 0.000
C2 0.124 -0.445 1.094
C3 0.124 -0.445 -1.094
C4 0.653 -1.435 0.000
O5 -0.887 1.669 0.000
H6 1.064 1.198 0.000
H7 0.726 -0.286 1.975
H8 -0.892 -0.696 1.377
H9 0.726 -0.286 -1.975
H10 -0.892 -0.696 -1.377
H11 1.733 -1.484 0.000
H12 0.239 -2.431 0.000
H13 -1.764 1.262 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 H6 H7 H8 H9 H10 H11 H12 H13
C11.56261.56262.17181.42061.07772.27552.18972.27552.18972.68943.10411.9786
C21.56262.18741.56742.58592.18621.07911.08373.13122.68282.20552.27012.7708
C31.56262.18741.56742.58592.18623.13122.68281.07911.08372.20552.27012.7708
C42.17181.56741.56743.46532.66522.28652.19762.28652.19761.08091.07843.6225
O51.42062.58592.58593.46532.00733.21282.73613.21282.73614.09944.25170.9663
H61.07772.18622.18622.66522.00732.49313.05072.49313.05072.76413.72162.8289
H72.27551.07913.13122.28653.21282.49311.77283.95003.74422.52012.95653.5352
H82.18971.08372.68282.19762.73613.05071.77283.74422.75353.06692.48702.5479
H92.27553.13121.07912.28653.21282.49313.95003.74421.77282.52012.95653.5352
H102.18972.68281.08372.19762.73613.05073.74422.75351.77283.06692.48702.5479
H112.68942.20552.20551.08094.09942.76412.52013.06692.52013.06691.76904.4468
H123.10412.27012.27011.07844.25173.72162.95652.48702.95652.48701.76904.2018
H131.97862.77082.77083.62250.96632.82893.53522.54793.53522.54794.44684.2018

picture of Cyclobutanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 87.872 C1 C2 H7 117.773
C1 C2 H8 110.363 C1 C3 C4 87.872
C1 C3 H9 117.773 C1 C3 H10 110.363
C1 O5 H13 110.533 C2 C1 C3 88.839
C2 C1 O5 120.109 C2 C1 H6 110.443
C2 C4 C3 88.494 C2 C4 H11 111.453
C2 C4 H12 116.972 C3 C1 O5 120.109
C3 C1 H6 110.443 C3 C4 H11 111.453
C3 C4 H12 116.972 C4 C2 H7 118.354
C4 C2 H8 110.648 C4 C3 H9 118.354
C4 C3 H10 110.648 O5 C1 H6 106.108
H7 C2 H8 110.100 H9 C3 H10 110.100
H11 C4 H12 110.015
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.118 0.046    
2 C -0.450 0.018    
3 C -0.450 0.019    
4 C -0.436 0.071    
5 O -0.682 0.077    
6 H 0.239 -0.265    
7 H 0.216 -0.031    
8 H 0.212 0.420    
9 H 0.216 0.065    
10 H 0.212 0.088    
11 H 0.223 -0.218    
12 H 0.215 0.426    
13 H 0.369 -0.716    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.276 -1.941 0.000 1.960
CHELPG -0.177 1.402 1.084 1.781
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.673 1.415 0.000
y 1.415 -37.943 0.000
z 0.000 0.000 -32.291
Traceless
 xyz
x 7.444 1.415 0.000
y 1.415 -7.961 0.000
z 0.000 0.000 0.517
Polar
3z2-r21.035
x2-y210.270
xy1.415
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.047 -0.278 0.000
y -0.278 5.873 0.000
z 0.000 0.000 5.756


<r2> (average value of r2) Å2
<r2> 109.133
(<r2>)1/2 10.447