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All results from a given calculation for C4H10O (Ethanol, 1,1-dimethyl-)

using model chemistry: CISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C1 1A

Conformer 1 (CS)

Jump to S1C2
Vibrational Frequencies calculated at CISD/6-31G*
Rotational Constants (cm-1) from geometry optimized at CISD/6-31G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-31G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CISD/6-31G*
 hartrees
Energy at 0K-232.791236
Energy at 298.15K-232.802744
HF Energy-232.153025
Nuclear repulsion energy200.310412
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 CISD/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 3916 3626 16.52      
2 A 3253 3012 36.66      
3 A 3252 3011 57.01      
4 A 3245 3004 4.45      
5 A 3244 3004 1.59      
6 A 3227 2987 58.61      
7 A 3219 2981 2.72      
8 A 3168 2933 6.28      
9 A 3153 2919 32.36      
10 A 3148 2914 15.06      
11 A 1613 1493 7.10      
12 A 1602 1483 4.52      
13 A 1595 1476 2.13      
14 A 1582 1465 0.02      
15 A 1580 1462 0.05      
16 A 1571 1454 0.03      
17 A 1526 1413 4.25      
18 A 1511 1399 32.45      
19 A 1501 1390 17.22      
20 A 1454 1346 31.65      
21 A 1353 1253 22.06      
22 A 1346 1246 59.51      
23 A 1236 1144 64.81      
24 A 1111 1028 1.79      
25 A 1093 1012 13.39      
26 A 1014 939 32.09      
27 A 1014 938 0.00      
28 A 989 916 0.11      
29 A 976 904 0.01      
30 A 794 735 2.56      
31 A 490 454 13.31      
32 A 484 449 10.06      
33 A 436 404 0.51      
34 A 361 334 22.59      
35 A 358 331 1.48      
36 A 336 311 103.49      
37 A 296 274 0.05      
38 A 287 266 2.31      
39 A 231 213 2.95      

Unscaled Zero Point Vibrational Energy (zpe) 31282.1 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 28961.0 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 CISD/6-31G*
ABC
0.15872 0.15794 0.15146

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.005 0.000 0.014
H2 1.734 1.270 -0.218
H3 0.203 2.142 -0.098
H4 0.638 1.308 -1.597
C5 0.682 1.256 -0.510
H6 -1.966 0.882 0.068
H7 -1.966 -0.882 0.068
H8 -1.617 -0.000 -1.427
C9 -1.481 -0.000 -0.346
H10 0.203 -2.142 -0.098
H11 1.734 -1.270 -0.218
H12 0.638 -1.308 -1.597
C13 0.682 -1.256 -0.510
H14 0.943 0.000 1.721
O15 0.024 0.000 1.439

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 H8 C9 H10 H11 H12 C13 H14 O15
C12.16562.15552.17291.52472.15072.15072.16231.51932.15552.16562.17291.52471.95241.4252
H22.16561.76591.76201.09153.73094.28943.78213.45893.74202.54003.12242.75182.44862.6985
H32.15551.76591.77011.08842.51433.72543.10952.73644.28503.74203.78713.45682.90632.6430
H42.17291.76201.77011.08953.12063.78842.61312.78723.78713.12242.61592.78553.57963.3628
C51.52471.09151.08841.08952.73623.45222.77602.50683.45682.75182.78552.51232.57342.4104
H62.15073.73092.51433.12062.73621.76361.77031.08833.72544.28943.78843.45223.45982.5719
H72.15074.28943.72543.78843.45221.76361.77031.08832.51433.73093.12062.73623.45992.5719
H82.16233.78213.10952.61312.77601.77031.77031.08913.10953.78212.61312.77604.05743.3023
C91.51933.45892.73642.78722.50681.08831.08831.08912.73643.45892.78722.50683.18572.3347
H102.15553.74204.28503.78713.45683.72542.51433.10952.73641.76591.77011.08842.90632.6430
H112.16562.54003.74203.12242.75184.28943.73093.78213.45891.76591.76201.09152.44862.6985
H122.17293.12243.78712.61592.78553.78843.12062.61312.78721.77011.76201.08953.57963.3628
C131.52472.75183.45682.78552.51233.45222.73622.77602.50681.08841.09151.08952.57342.4104
H141.95242.44862.90633.57962.57343.45983.45994.05743.18572.90632.44863.57962.57340.9617
O151.42522.69852.64303.36282.41042.57192.57193.30232.33472.64302.69853.36282.41040.9617

picture of Ethanol, 1,1-dimethyl- state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H2 110.650 C1 C5 H3 110.028
C1 C5 H4 111.352 C1 C9 H6 110.032
C1 C9 H7 110.032 C1 C9 H8 110.906
C1 C13 H10 110.028 C1 C13 H11 110.650
C1 C13 H12 111.352 C1 O15 H14 108.192
H2 C5 H3 108.206 H2 C5 H4 107.781
H3 C5 H4 108.731 C5 C1 C9 110.878
C5 C1 C13 110.943 C5 C1 O15 109.547
H6 C9 H7 108.246 H6 C9 H8 108.782
H7 C9 H8 108.782 C9 C1 C13 110.878
C9 C1 O15 104.866 H10 C13 H11 108.206
H10 C13 H12 108.731 H11 C13 H12 107.781
C13 C1 O15 109.547
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability