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 C4H10O (2-Butanol, (.+/-.)-)

using model chemistry: PBEPBEultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-233.350211
Energy at 298.15K-233.361296
Nuclear repulsion energy192.156945
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 PBEPBEultrafine/6-31G*
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 3597 3538 2.94      
2 A 3076 3025 32.16      
3 A 3074 3023 12.91      
4 A 3057 3007 39.93      
5 A 3045 2994 36.26      
6 A 2998 2949 29.77      
7 A 2987 2938 29.25      
8 A 2981 2932 32.64      
9 A 2970 2921 11.25      
10 A 2942 2894 21.45      
11 A 1492 1467 6.05      
12 A 1478 1454 12.85      
13 A 1476 1452 1.27      
14 A 1475 1451 4.57      
15 A 1458 1434 0.60      
16 A 1396 1373 37.30      
17 A 1383 1360 15.67      
18 A 1378 1355 4.72      
19 A 1358 1336 3.12      
20 A 1317 1296 1.41      
21 A 1290 1269 6.16      
22 A 1237 1217 4.80      
23 A 1157 1138 15.27      
24 A 1111 1093 19.66      
25 A 1068 1050 64.13      
26 A 1032 1015 2.84      
27 A 981 965 20.51      
28 A 957 941 12.05      
29 A 906 891 10.21      
30 A 803 789 5.11      
31 A 759 747 0.70      
32 A 485 477 14.02      
33 A 451 444 7.43      
34 A 367 360 17.75      
35 A 310 304 94.63      
36 A 251 247 0.34      
37 A 234 230 2.04      
38 A 217 214 0.06      
39 A 120 118 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 29336.6 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 28852.6 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 PBEPBEultrafine/6-31G*
ABC
0.26335 0.11368 0.08818

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.513 1.417 0.057
H2 -0.641 1.418 1.030
C3 -1.809 -0.658 -0.003
H4 -1.955 -0.717 1.092
H5 -1.837 -1.690 -0.396
C6 -0.484 0.035 -0.335
H7 -0.363 0.077 -1.435
C8 0.729 -0.698 0.266
H9 0.709 -1.754 -0.067
H10 0.607 -0.725 1.369
C11 2.067 -0.049 -0.099
H12 2.247 -0.096 -1.187
H13 2.068 1.015 0.191
H14 2.911 -0.550 0.405
H15 -2.655 -0.097 -0.433

Atom - Atom Distances (Å)
  O1 H2 C3 H4 H5 C6 H7 C8 H9 H10 C11 H12 H13 H14 H15
O10.98082.44822.77593.40801.43762.01162.46163.40082.75012.97153.38512.61513.96412.6687
H20.98082.59642.50703.62211.94932.81942.63383.61722.50273.28003.94352.86454.10872.9132
C32.44822.59641.10691.10421.53202.16362.55252.74722.77933.92534.26304.22724.73921.1023
H42.77592.50701.10691.78272.18333.09032.80843.08532.57694.24784.82104.47164.91741.7887
H53.40803.62211.10421.78272.19272.52392.82902.56803.16514.24534.45454.78604.94791.7914
C61.43761.94931.53202.18332.19271.10691.53902.16682.16112.56352.86412.78363.52362.1772
H72.01162.81942.16363.09032.52391.10692.16372.52393.07262.77592.62743.07083.80712.5076
C82.46162.63382.55252.80842.82901.53902.16371.10701.11031.53152.18592.17552.19173.5069
H93.40083.61722.74723.08532.56802.16682.52391.10701.76912.17992.52343.09482.55323.7681
H102.75012.50272.77932.57693.16512.16113.07261.11031.76912.17773.10152.55922.50383.7788
C112.97153.28003.92534.24784.24532.56352.77591.53152.17992.17771.10461.10231.10314.7343
H123.38513.94354.26304.82104.45452.86412.62742.18592.52343.10151.10461.77941.78354.9600
H132.61512.86454.22724.47164.78602.78363.07082.17553.09482.55921.10231.77941.79074.8918
H143.96414.10874.73924.91744.94793.52363.80712.19172.55322.50381.10311.78351.79075.6469
H152.66872.91321.10231.78871.79142.17722.50763.50693.76813.77884.73434.96004.89185.6469

picture of 2-Butanol, (.+/-.)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C6 C3 111.020 O1 C6 H7 103.719
O1 C6 C8 111.541 H2 O1 C6 105.874
C3 C6 H7 109.081 C3 C6 C8 112.440
H4 C3 H5 107.461 H4 C3 C6 110.621
H4 C3 H15 108.132 H5 C3 C6 111.530
H5 C3 H15 108.560 C6 C3 H15 110.416
C6 C8 H9 108.853 C6 C8 H10 108.233
C6 C8 C11 113.207 H7 C6 C8 108.624
C8 C11 H12 111.001 C8 C11 H13 110.318
C8 C11 H14 111.558 H9 C8 H10 105.853
H9 C8 C11 110.385 H10 C8 C11 110.023
H12 C11 H13 107.470 H12 C11 H14 107.776
H13 C11 H14 108.577
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.577      
2 H 0.374      
3 C -0.496      
4 H 0.144      
5 H 0.156      
6 C 0.095      
7 H 0.148      
8 C -0.291      
9 H 0.146      
10 H 0.131      
11 C -0.480      
12 H 0.156      
13 H 0.171      
14 H 0.153      
15 H 0.171      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.192 -1.166 0.965 1.526
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.257 0.228 -0.692
y 0.228 -35.303 2.306
z -0.692 2.306 -30.646
Traceless
 xyz
x -0.282 0.228 -0.692
y 0.228 -3.352 2.306
z -0.692 2.306 3.634
Polar
3z2-r27.268
x2-y22.046
xy0.228
xz-0.692
yz2.306


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.947 0.079 -0.053
y 0.079 6.949 0.151
z -0.053 0.151 6.833


<r2> (average value of r2) Å2
<r2> 147.371
(<r2>)1/2 12.140