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

using model chemistry: MP2/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-193.783879
Energy at 298.15K-193.792833
HF Energy-193.129253
Nuclear repulsion energy132.842818
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/aug-cc-pVDZ
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' 3180 3050 23.81      
2 A' 3168 3038 20.45      
3 A' 3073 2947 16.42      
4 A' 3018 2894 78.13      
5 A' 3005 2882 41.23      
6 A' 1515 1453 1.70      
7 A' 1495 1434 2.40      
8 A' 1491 1430 5.37      
9 A' 1457 1397 0.62      
10 A' 1414 1356 28.35      
11 A' 1375 1319 2.15      
12 A' 1225 1175 33.03      
13 A' 1153 1106 127.51      
14 A' 1110 1064 10.26      
15 A' 1042 999 21.28      
16 A' 862 827 12.42      
17 A' 465 446 0.58      
18 A' 289 277 2.73      
19 A" 3176 3046 22.12      
20 A" 3088 2961 46.00      
21 A" 3050 2925 57.33      
22 A" 1481 1420 8.24      
23 A" 1475 1414 3.85      
24 A" 1290 1237 1.65      
25 A" 1187 1139 8.47      
26 A" 1157 1110 0.00      
27 A" 818 784 0.18      
28 A" 264 253 1.79      
29 A" 212 204 1.51      
30 A" 113 109 2.35      

Unscaled Zero Point Vibrational Energy (zpe) 23823.5 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 22846.7 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/aug-cc-pVDZ
ABC
0.92174 0.13791 0.12886

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.329 1.235 0.000
O2 -0.001 0.725 0.000
C3 0.000 -0.703 0.000
C4 -1.443 -1.180 0.000
H5 1.256 2.331 0.000
H6 1.882 0.904 0.899
H7 1.882 0.904 -0.899
H8 0.539 -1.074 -0.895
H9 0.539 -1.074 0.895
H10 -1.477 -2.281 0.000
H11 -1.967 -0.811 0.894
H12 -1.967 -0.811 -0.894

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.42422.35033.67661.09791.10641.10642.59972.59974.49863.98173.9817
O21.42421.42852.38962.03882.09442.09442.08102.08103.34922.65102.6510
C32.35031.42851.51963.28362.63362.63361.10871.10872.16122.16362.1636
C43.67662.38961.51964.42834.02624.02622.17722.17721.10141.10001.1000
H51.09792.03883.28364.42831.79871.79873.59283.59285.36074.58934.5893
H61.10642.09442.63364.02621.79871.79832.98952.39144.71594.21484.5803
H71.10642.09442.63364.02621.79871.79832.39142.98954.71594.58034.2148
H82.59972.08101.10872.17723.59282.98952.39141.78962.51433.09052.5205
H92.59972.08101.10872.17723.59282.39142.98951.78962.51432.52053.0905
H104.49863.34922.16121.10145.36074.71594.71592.51432.51431.78871.7887
H113.98172.65102.16361.10004.58934.21484.58033.09052.52051.78871.7873
H123.98172.65102.16361.10004.58934.58034.21482.52053.09051.78871.7873

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 110.954 O2 C1 H5 107.168
O2 C1 H6 111.091 O2 C1 H7 111.091
O2 C3 C4 108.267 O2 C3 H8 109.568
O2 C3 H9 109.568 C3 C4 H10 110.067
C3 C4 H11 110.342 C3 C4 H12 110.342
C4 C3 H8 110.900 C4 C3 H9 110.900
H5 C1 H6 109.370 H5 C1 H7 109.370
H6 C1 H7 108.719 H8 C3 H9 107.627
H10 C4 H11 108.690 H10 C4 H12 108.690
H11 C4 H12 108.663
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability