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

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-193.834355
Energy at 298.15K-193.843346
HF Energy-193.174032
Nuclear repulsion energy133.900126
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/TZVP
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' 3196 3029 26.36      
2 A' 3186 3020 22.23      
3 A' 3095 2934 15.56      
4 A' 3037 2879 77.17      
5 A' 3022 2864 39.55      
6 A' 1561 1480 0.77      
7 A' 1535 1455 5.72      
8 A' 1527 1448 4.30      
9 A' 1509 1431 0.27      
10 A' 1460 1384 36.45      
11 A' 1421 1347 2.28      
12 A' 1263 1197 36.61      
13 A' 1180 1119 133.16      
14 A' 1138 1079 3.74      
15 A' 1057 1002 19.84      
16 A' 887 840 13.83      
17 A' 475 450 0.53      
18 A' 295 280 2.70      
19 A" 3196 3030 23.10      
20 A" 3101 2939 52.52      
21 A" 3064 2904 63.35      
22 A" 1505 1426 6.78      
23 A" 1501 1422 4.26      
24 A" 1314 1246 2.17      
25 A" 1224 1160 9.92      
26 A" 1186 1124 0.00      
27 A" 841 797 0.02      
28 A" 267 253 2.23      
29 A" 216 205 1.89      
30 A" 99 94 2.57      

Unscaled Zero Point Vibrational Energy (zpe) 24178.2 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 22918.5 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/TZVP
ABC
0.94090 0.13974 0.13065

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.318 1.228 0.000
O2 0.001 0.720 0.000
C3 0.000 -0.695 0.000
C4 -1.432 -1.176 0.000
H5 1.247 2.313 0.000
H6 1.869 0.905 0.890
H7 1.869 0.905 -0.890
H8 0.531 -1.068 -0.886
H9 0.531 -1.068 0.886
H10 -1.463 -2.266 0.000
H11 -1.952 -0.813 0.885
H12 -1.952 -0.813 -0.885

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.41162.33153.65231.08721.09601.09602.58372.58374.46493.95513.9551
O21.41161.41592.37642.02222.07832.07832.06542.06543.32532.63602.6360
C32.33151.41591.51053.25652.61682.61681.09841.09842.14582.14692.1469
C43.65232.37641.51054.39854.00254.00252.15682.15681.09051.08891.0889
H51.08722.02223.25654.39851.77841.77843.56763.56765.32014.55964.5596
H61.09602.07832.61684.00251.77841.78042.97292.38384.68464.19014.5506
H71.09602.07832.61684.00251.77841.78042.38382.97294.68464.55064.1901
H82.58372.06541.09842.15683.56762.97292.38381.77232.48893.06122.4968
H92.58372.06541.09842.15683.56762.38382.97291.77232.48892.49683.0612
H104.46493.32532.14581.09055.32014.68464.68462.48892.48891.77031.7703
H113.95512.63602.14691.08894.55964.19014.55063.06122.49681.77031.7701
H123.95512.63602.14691.08894.55964.55064.19012.49683.06121.77031.7701

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 111.089 O2 C1 H5 107.334
O2 C1 H6 111.325 O2 C1 H7 111.325
O2 C3 C4 108.558 O2 C3 H8 109.821
O2 C3 H9 109.821 C3 C4 H10 110.134
C3 C4 H11 110.314 C3 C4 H12 110.314
C4 C3 H8 110.533 C4 C3 H9 110.533
H5 C1 H6 109.092 H5 C1 H7 109.092
H6 C1 H7 108.625 H8 C3 H9 107.572
H10 C4 H11 108.646 H10 C4 H12 108.646
H11 C4 H12 108.739
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability