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

using model chemistry: MP3/6-31+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 MP3/6-31+G**
 hartrees
Energy at 0K-193.787821
Energy at 298.15K-193.796810
HF Energy-193.121110
Nuclear repulsion energy133.636744
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 MP3/6-31+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' 3235 3010 29.02      
2 A' 3219 2995 27.59      
3 A' 3134 2916 18.15      
4 A' 3085 2870 79.19      
5 A' 3069 2856 40.21      
6 A' 1586 1476 0.59      
7 A' 1563 1454 5.85      
8 A' 1552 1444 3.54      
9 A' 1529 1422 0.04      
10 A' 1484 1381 36.04      
11 A' 1443 1343 7.83      
12 A' 1278 1189 53.01      
13 A' 1206 1123 118.06      
14 A' 1148 1069 2.66      
15 A' 1073 999 18.90      
16 A' 897 835 12.67      
17 A' 477 443 0.67      
18 A' 296 276 2.86      
19 A" 3230 3006 28.02      
20 A" 3146 2927 54.96      
21 A" 3107 2891 62.31      
22 A" 1543 1436 5.81      
23 A" 1535 1428 4.96      
24 A" 1329 1237 2.04      
25 A" 1232 1147 12.04      
26 A" 1196 1113 0.18      
27 A" 843 784 0.01      
28 A" 264 245 2.18      
29 A" 210 196 2.43      
30 A" 102 95 3.18      

Unscaled Zero Point Vibrational Energy (zpe) 24505.2 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 22802.1 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 MP3/6-31+G**
ABC
0.94249 0.13870 0.12974

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.322 1.239 0.000
O2 0.009 0.714 0.000
C3 0.000 -0.705 0.000
C4 -1.441 -1.174 0.000
H5 1.233 2.321 0.000
H6 1.874 0.921 0.890
H7 1.874 0.921 -0.890
H8 0.530 -1.078 -0.885
H9 0.530 -1.078 0.885
H10 -1.482 -2.263 0.000
H11 -1.957 -0.804 0.884
H12 -1.957 -0.804 -0.884

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.41432.35073.66771.08621.09431.09432.60322.60324.48623.96283.9628
O21.41431.41892.37992.02102.07712.07712.06492.06493.32932.63592.6359
C32.35071.41891.51503.26812.63582.63581.09651.09652.15052.14932.1493
C43.66772.37991.51504.40094.02084.02082.16192.16191.08981.08831.0883
H51.08622.02103.26814.40091.77841.77843.58213.58215.32844.55284.5528
H61.09432.07712.63584.02081.77841.77952.99202.40874.71124.20124.5603
H71.09432.07712.63584.02081.77841.77952.40872.99204.71124.56034.2012
H82.60322.06491.09652.16193.58212.99202.40871.77002.49733.06352.5012
H92.60322.06491.09652.16193.58212.40872.99201.77002.49732.50123.0635
H104.48623.32932.15051.08985.32844.71124.71122.49732.49731.77031.7703
H113.96282.63592.14931.08834.55284.20124.56033.06352.50121.77031.7677
H123.96282.63592.14931.08834.55284.56034.20122.50123.06351.77031.7677

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 112.130 O2 C1 H5 107.119
O2 C1 H6 111.146 O2 C1 H7 111.146
O2 C3 C4 108.376 O2 C3 H8 109.684
O2 C3 H9 109.684 C3 C4 H10 110.235
C3 C4 H11 110.232 C3 C4 H12 110.232
C4 C3 H8 110.734 C4 C3 H9 110.734
H5 C1 H6 109.294 H5 C1 H7 109.294
H6 C1 H7 108.803 H8 C3 H9 107.624
H10 C4 H11 108.742 H10 C4 H12 108.742
H11 C4 H12 108.614
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability