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

using model chemistry: MP2/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-193.429962
Energy at 298.15K-193.438746
HF Energy-193.046944
Nuclear repulsion energy129.821239
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/LANL2DZ
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' 3173 3056 34.40      
2 A' 3135 3019 40.05      
3 A' 3034 2922 25.93      
4 A' 2997 2886 98.53      
5 A' 2991 2881 41.37      
6 A' 1555 1498 1.44      
7 A' 1543 1486 2.55      
8 A' 1537 1481 9.85      
9 A' 1489 1434 0.20      
10 A' 1459 1405 17.31      
11 A' 1425 1372 18.59      
12 A' 1210 1165 17.19      
13 A' 1122 1080 7.14      
14 A' 1082 1042 90.05      
15 A' 998 962 19.82      
16 A' 804 775 12.36      
17 A' 444 427 1.27      
18 A' 271 261 5.36      
19 A" 3153 3037 42.64      
20 A" 3085 2971 73.22      
21 A" 3048 2935 69.22      
22 A" 1524 1467 10.42      
23 A" 1523 1467 3.92      
24 A" 1297 1249 0.00      
25 A" 1190 1146 9.94      
26 A" 1143 1100 0.09      
27 A" 852 821 1.46      
28 A" 247 237 2.55      
29 A" 195 188 3.33      
30 A" 98 94 5.40      

Unscaled Zero Point Vibrational Energy (zpe) 23809.3 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 22930.7 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/LANL2DZ
ABC
0.88746 0.13058 0.12190

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.362 1.301 0.000
O2 0.000 0.727 0.000
C3 0.003 -0.757 0.000
C4 -1.472 -1.209 0.000
H5 1.222 2.391 0.000
H6 1.922 0.990 0.904
H7 1.922 0.990 -0.904
H8 0.539 -1.122 -0.902
H9 0.539 -1.122 0.902
H10 -1.534 -2.312 0.000
H11 -1.986 -0.823 0.896
H12 -1.986 -0.823 -0.896

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.47842.46673.78601.09861.10731.10732.71342.71344.63124.06494.0649
O21.47841.48452.43192.06422.13972.13972.12652.12653.40472.67352.6735
C32.46671.48451.54303.37582.74792.74791.11021.11022.18682.18262.1826
C43.78602.43191.54304.49604.14364.14362.20562.20561.10551.10261.1026
H51.09862.06423.37584.49601.80761.80763.69033.69035.45124.62804.6280
H61.10732.13972.74794.14361.80761.80763.10362.52454.86484.30744.6683
H71.10732.13972.74794.14361.80761.80762.52453.10364.86484.66834.3074
H82.71342.12651.11022.20563.69033.10362.52451.80302.55493.11372.5424
H92.71342.12651.11022.20563.69032.52453.10361.80302.55492.54243.1137
H104.63123.40472.18681.10555.45124.86484.86482.55492.55491.79621.7962
H114.06492.67352.18261.10264.62804.30744.66833.11372.54241.79621.7920
H124.06492.67352.18261.10264.62804.66834.30742.54243.11371.79621.7920

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 112.721 O2 C1 H5 105.509
O2 C1 H6 110.874 O2 C1 H7 110.874
O2 C3 C4 106.872 O2 C3 H8 109.236
O2 C3 H9 109.236 C3 C4 H10 110.218
C3 C4 H11 110.065 C3 C4 H12 110.065
C4 C3 H8 111.427 C4 C3 H9 111.427
H5 C1 H6 110.061 H5 C1 H7 110.061
H6 C1 H7 109.408 H8 C3 H9 108.596
H10 C4 H11 108.871 H10 C4 H12 108.871
H11 C4 H12 108.714
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability