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 CH3CHOHCH3 (Isopropyl alcohol)

using model chemistry: QCISD/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 QCISD/6-31G*
 hartrees
Energy at 0K-193.735668
Energy at 298.15K-193.744760
HF Energy-193.113613
Nuclear repulsion energy134.573677
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 QCISD/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 3756 3577 9.86      
2 A 3160 3009 24.80      
3 A 3153 3003 53.17      
4 A 3146 2996 1.45      
5 A 3129 2980 32.86      
6 A 3072 2926 10.81      
7 A 3058 2912 20.46      
8 A 3009 2865 58.45      
9 A 1558 1484 6.06      
10 A 1548 1474 3.59      
11 A 1538 1465 1.03      
12 A 1533 1460 0.97      
13 A 1488 1417 23.26      
14 A 1465 1395 18.31      
15 A 1439 1370 0.95      
16 A 1421 1353 15.38      
17 A 1321 1258 61.31      
18 A 1231 1172 30.96      
19 A 1198 1141 17.03      
20 A 1127 1074 25.06      
21 A 1005 957 33.73      
22 A 981 934 1.91      
23 A 954 908 0.26      
24 A 850 809 3.77      
25 A 494 470 9.36      
26 A 423 403 9.88      
27 A 370 352 1.67      
28 A 323 308 126.37      
29 A 281 267 1.08      
30 A 234 223 4.70      

Unscaled Zero Point Vibrational Energy (zpe) 24132.1 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 22981.0 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 QCISD/6-31G*
ABC
0.28939 0.26776 0.15920

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 0.043 0.367
C2 -1.207 -0.765 -0.104
C3 1.315 -0.570 -0.088
O4 -0.025 1.366 -0.170
H5 -0.007 0.082 1.471
H6 -2.144 -0.294 0.223
H7 -1.212 -0.818 -1.200
H8 -1.185 -1.786 0.300
H9 2.156 0.044 0.254
H10 1.430 -1.585 0.314
H11 1.343 -0.617 -1.184
H12 -0.838 1.799 0.133

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10 H11 H12
C11.52781.52061.42751.10492.17622.16072.18082.15862.16752.15501.9598
C21.52782.52992.43782.15411.09921.09721.09793.47772.79302.77322.6018
C31.52062.52992.35602.14603.48482.77232.80691.09601.09721.09713.2092
O41.42752.43782.35602.08392.72042.69063.39102.58523.32522.61350.9697
H51.10492.15412.14602.08392.50383.06572.49962.48262.48683.05952.3305
H62.17621.09923.48482.72042.50381.78011.77594.31403.80183.77442.4691
H72.16071.09722.77232.69063.06571.78011.78523.76853.14012.56312.9610
H82.18081.09792.80693.39102.49961.77591.78523.80962.62273.15553.6059
H92.15863.47771.09602.58522.48264.31403.76853.80961.78441.77903.4725
H102.16752.79301.09723.32522.48683.80183.14012.62271.78441.78484.0778
H112.15502.77321.09712.61353.05953.77442.56313.15551.77901.78483.5111
H121.95982.60183.20920.96972.33052.46912.96103.60593.47254.07783.5111

picture of Isopropyl alcohol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.810 C1 C2 H7 109.707
C1 C2 H8 111.255 C1 C3 H9 110.112
C1 C3 H10 110.745 C1 C3 H11 109.757
C1 O4 H12 108.157 C2 C1 C3 112.179
C2 C1 O4 111.112 C2 C1 H5 108.743
C3 C1 O4 106.056 C3 C1 H5 108.602
O4 C1 H5 110.100 H6 C2 H7 108.287
H6 C2 H8 107.862 H7 C2 H8 108.837
H9 C3 H10 108.904 H9 C3 H11 108.418
H10 C3 H11 108.857
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability