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All results from a given calculation for CH3OC2H5 (Ethane, methoxy-)

using model chemistry: MP2=FULL/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/6-31+G**
 hartrees
Energy at 0K-193.769440
Energy at 298.15K-193.778434
HF Energy-193.120811
Nuclear repulsion energy133.648591
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 MP2=FULL/6-31+G**
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' 3242 3045 24.34      
2 A' 3227 3031 21.72      
3 A' 3130 2940 16.94      
4 A' 3076 2889 79.51      
5 A' 3059 2873 46.04      
6 A' 1576 1480 0.50      
7 A' 1557 1462 5.19      
8 A' 1548 1454 4.98      
9 A' 1515 1423 0.00      
10 A' 1470 1380 33.32      
11 A' 1431 1344 7.80      
12 A' 1259 1182 40.27      
13 A' 1182 1111 124.77      
14 A' 1143 1074 5.05      
15 A' 1060 995 20.89      
16 A' 885 831 14.97      
17 A' 472 443 0.63      
18 A' 294 276 3.02      
19 A" 3241 3044 21.84      
20 A" 3149 2958 50.13      
21 A" 3107 2918 63.13      
22 A" 1537 1444 6.58      
23 A" 1531 1438 5.77      
24 A" 1322 1241 1.56      
25 A" 1223 1149 11.29      
26 A" 1189 1116 0.11      
27 A" 843 792 0.05      
28 A" 270 253 2.18      
29 A" 216 203 2.20      
30 A" 107 100 3.33      

Unscaled Zero Point Vibrational Energy (zpe) 24428.6 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 22943.4 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 MP2=FULL/6-31+G**
ABC
0.93829 0.13906 0.12998

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.322 1.237 0.000
O2 0.003 0.716 0.000
C3 0.000 -0.707 0.000
C4 -1.436 -1.174 0.000
H5 1.234 2.319 0.000
H6 1.872 0.917 0.890
H7 1.872 0.917 -0.890
H8 0.531 -1.076 -0.886
H9 0.531 -1.076 0.886
H10 -1.479 -2.262 0.000
H11 -1.951 -0.804 0.883
H12 -1.951 -0.804 -0.883

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.41832.35093.66321.08551.09391.09392.59992.59994.48213.95733.9573
O21.41831.42272.37512.02152.07952.07952.06732.06733.32622.62852.6285
C32.35091.42271.51003.26802.63272.63271.09661.09662.14612.14402.1440
C43.66322.37511.51004.39664.01284.01282.15962.15961.08921.08741.0874
H51.08552.02153.26804.39661.77901.77903.57833.57835.32434.54774.5477
H61.09392.07952.63274.01281.77901.77962.98652.40154.70344.19234.5519
H71.09392.07952.63274.01281.77901.77962.40152.98654.70344.55194.1923
H82.59992.06731.09662.15963.57832.98652.40151.77102.49633.06032.4972
H92.59992.06731.09662.15963.57832.40152.98651.77102.49632.49723.0603
H104.48213.32622.14611.08925.32434.70344.70342.49632.49631.76901.7690
H113.95732.62852.14401.08744.54774.19234.55193.06032.49721.76901.7668
H123.95732.62852.14401.08744.54774.55194.19232.49723.06031.76901.7668

picture of Ethane, methoxy- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 111.685 O2 C1 H5 106.929
O2 C1 H6 111.081 O2 C1 H7 111.081
O2 C3 C4 108.128 O2 C3 H8 109.604
O2 C3 H9 109.604 C3 C4 H10 110.257
C3 C4 H11 110.207 C3 C4 H12 110.207
C4 C3 H8 110.895 C4 C3 H9 110.895
H5 C1 H6 109.428 H5 C1 H7 109.428
H6 C1 H7 108.859 H8 C3 H9 107.708
H10 C4 H11 108.729 H10 C4 H12 108.729
H11 C4 H12 108.667
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability