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/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 QCISD/3-21G
 hartrees
Energy at 0K-192.486030
Energy at 298.15K-192.495041
HF Energy-192.045337
Nuclear repulsion energy132.810968
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/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 3459 3352 3.53      
2 A 3114 3018 25.77      
3 A 3111 3015 43.73      
4 A 3104 3008 0.63      
5 A 3083 2988 26.77      
6 A 3038 2944 9.17      
7 A 3021 2928 17.78      
8 A 2987 2895 47.27      
9 A 1587 1538 8.29      
10 A 1574 1525 4.42      
11 A 1568 1520 0.30      
12 A 1561 1513 1.39      
13 A 1478 1432 6.99      
14 A 1462 1417 2.76      
15 A 1459 1414 20.67      
16 A 1417 1373 10.43      
17 A 1316 1275 48.28      
18 A 1224 1186 27.87      
19 A 1176 1140 7.19      
20 A 1104 1070 22.32      
21 A 989 958 0.66      
22 A 958 928 0.18      
23 A 951 922 35.29      
24 A 805 780 1.91      
25 A 463 449 9.56      
26 A 391 379 9.90      
27 A 362 351 0.85      
28 A 328 318 137.51      
29 A 267 258 0.83      
30 A 227 220 2.91      

Unscaled Zero Point Vibrational Energy (zpe) 23788.7 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 23056.0 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/3-21G
ABC
0.28011 0.26182 0.15527

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.002 0.026 0.393
C2 -1.244 -0.744 -0.113
C3 1.312 -0.613 -0.094
O4 0.022 1.393 -0.169
H5 -0.010 0.056 1.497
H6 -2.171 -0.264 0.238
H7 -1.238 -0.740 -1.211
H8 -1.232 -1.782 0.248
H9 2.163 -0.010 0.248
H10 1.410 -1.638 0.287
H11 1.312 -0.627 -1.193
H12 -0.813 1.847 0.123

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10 H11 H12
C11.54651.54001.47821.10402.19382.16522.19152.16982.18472.16042.0116
C21.54652.55932.48422.17961.10131.09851.09893.50362.82842.77702.6366
C31.54002.55932.38572.17423.51592.78682.82061.09751.09861.09833.2578
O41.47822.48422.38572.13652.77822.68693.43872.59373.36472.60610.9948
H51.10402.17962.17422.13652.52053.07762.53532.50712.51983.07372.3957
H62.19381.10133.51592.77822.52051.78791.78504.34113.83533.78262.5118
H72.16521.09852.78682.68693.07761.78791.79333.77223.17212.55262.9408
H82.19151.09892.82063.43872.53531.78501.79333.82922.64553.14323.6547
H92.16983.50361.09752.59372.50714.34113.77223.82921.79421.78383.5105
H102.18472.82841.09863.36472.51983.83533.17212.64551.79421.79474.1368
H112.16042.77701.09832.60613.07373.78262.55263.14321.78381.79473.5170
H122.01162.63663.25780.99482.39572.51182.94083.65473.51054.13683.5170

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 110.777 C1 C2 H7 108.714
C1 C2 H8 110.742 C1 C3 H9 109.568
C1 C3 H10 110.670 C1 C3 H11 108.788
C1 O4 H12 107.247 C2 C1 C3 112.033
C2 C1 O4 110.414 C2 C1 H5 109.512
C3 C1 O4 104.437 C3 C1 H5 109.531
O4 C1 H5 110.835 H6 C2 H7 108.732
H6 C2 H8 108.447 H7 C2 H8 109.397
H9 C3 H10 109.571 H9 C3 H11 108.658
H10 C3 H11 109.551
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability