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

using model chemistry: CCSD=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-193.927069
Energy at 298.15K-193.936130
HF Energy-193.128707
Nuclear repulsion energy134.310162
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 CCSD=FULL/6-31G(2df,p)
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' 3190 3004 20.08      
2 A' 3181 2995 25.59      
3 A' 3108 2926 12.20      
4 A' 3047 2869 60.64      
5 A' 3031 2854 29.22      
6 A' 1578 1486 1.27      
7 A' 1556 1465 5.37      
8 A' 1547 1456 3.19      
9 A' 1521 1432 0.10      
10 A' 1470 1385 37.12      
11 A' 1433 1350 3.35      
12 A' 1283 1208 58.32      
13 A' 1216 1145 108.01      
14 A' 1147 1080 4.43      
15 A' 1078 1015 15.32      
16 A' 901 848 8.38      
17 A' 480 452 0.65      
18 A' 296 278 2.71      
19 A" 3197 3010 20.24      
20 A" 3099 2918 49.98      
21 A" 3064 2885 54.02      
22 A" 1537 1447 6.00      
23 A" 1530 1441 3.39      
24 A" 1339 1261 1.65      
25 A" 1236 1163 9.12      
26 A" 1203 1132 0.13      
27 A" 842 793 0.25      
28 A" 274 258 2.33      
29 A" 223 210 1.02      
30 A" 120 113 2.58      

Unscaled Zero Point Vibrational Energy (zpe) 24362.2 cm-1
Scaled (by 0.9416) Zero Point Vibrational Energy (zpe) 22939.5 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 CCSD=FULL/6-31G(2df,p)
ABC
0.94496 0.14078 0.13158

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.274 1.259 0.000
O2 0.000 0.698 0.000
C3 0.023 -0.711 0.000
C4 -1.407 -1.179 0.000
H5 1.147 2.340 0.000
H6 1.852 0.973 0.888
H7 1.852 0.973 -0.888
H8 0.550 -1.095 -0.883
H9 0.550 -1.095 0.883
H10 -1.447 -2.271 0.000
H11 -1.922 -0.812 0.885
H12 -1.922 -0.812 -0.885

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.39212.33353.62361.08901.09711.09712.61642.61644.45673.91023.9102
O21.39211.40932.34602.00262.07232.07232.07332.07333.30282.60002.6000
C32.33351.40931.50413.25142.64052.64051.09761.09762.14332.13942.1394
C43.62362.34601.50414.34794.00534.00532.14792.14791.09211.08841.0884
H51.08902.00263.25144.34791.77601.77603.59703.59705.29024.48754.4875
H61.09712.07232.64054.00531.77601.77573.01852.44474.71154.17554.5364
H71.09712.07232.64054.00531.77601.77572.44473.01854.71154.53644.1755
H82.61642.07331.09762.14793.59703.01852.44471.76552.47953.05242.4881
H92.61642.07331.09762.14793.59702.44473.01851.76552.47952.48813.0524
H104.45673.30282.14331.09215.29024.71154.71152.47952.47951.77111.7711
H113.91022.60002.13941.08844.48754.17554.53643.05242.48811.77111.7707
H123.91022.60002.13941.08844.48754.53644.17552.48813.05241.77111.7707

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 112.817 O2 C1 H5 107.002
O2 C1 H6 112.180 O2 C1 H7 112.180
O2 C3 C4 107.220 O2 C3 H8 110.977
O2 C3 H9 110.977 C3 C4 H10 110.273
C3 C4 H11 110.194 C3 C4 H12 110.194
C4 C3 H8 110.313 C4 C3 H9 110.313
H5 C1 H6 108.661 H5 C1 H7 108.661
H6 C1 H7 108.055 H8 C3 H9 107.073
H10 C4 H11 108.632 H10 C4 H12 108.632
H11 C4 H12 108.872
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability