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

using model chemistry: QCISD/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 QCISD/aug-cc-pVDZ
 hartrees
Energy at 0K-193.835620
Energy at 298.15K-193.844567
HF Energy-193.129113
Nuclear repulsion energy132.662119
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 QCISD/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' 3140 3042 29.23      
2 A' 3125 3027 27.77      
3 A' 3045 2950 18.46      
4 A' 2995 2901 86.46      
5 A' 2982 2889 33.20      
6 A' 1520 1472 1.24      
7 A' 1495 1448 3.16      
8 A' 1492 1446 3.80      
9 A' 1466 1420 0.55      
10 A' 1426 1382 30.04      
11 A' 1386 1343 4.00      
12 A' 1236 1197 40.52      
13 A' 1163 1126 126.84      
14 A' 1112 1077 5.77      
15 A' 1046 1014 19.28      
16 A' 868 841 11.87      
17 A' 467 453 0.58      
18 A' 290 281 2.53      
19 A" 3132 3034 30.21      
20 A" 3049 2954 54.15      
21 A" 3018 2923 57.91      
22 A" 1480 1434 7.06      
23 A" 1476 1430 2.99      
24 A" 1293 1253 1.87      
25 A" 1193 1155 8.80      
26 A" 1161 1124 0.06      
27 A" 817 792 0.05      
28 A" 260 252 1.84      
29 A" 208 201 1.61      
30 A" 111 107 2.32      

Unscaled Zero Point Vibrational Energy (zpe) 23725.7 cm-1
Scaled (by 0.9687) Zero Point Vibrational Energy (zpe) 22983.1 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 QCISD/aug-cc-pVDZ
ABC
0.92305 0.13726 0.12835

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.330 1.240 0.000
O2 0.004 0.723 0.000
C3 0.000 -0.704 0.000
C4 -1.447 -1.182 0.000
H5 1.252 2.338 0.000
H6 1.887 0.912 0.901
H7 1.887 0.912 -0.901
H8 0.538 -1.079 -0.896
H9 0.538 -1.079 0.896
H10 -1.481 -2.285 0.000
H11 -1.974 -0.813 0.895
H12 -1.974 -0.813 -0.895

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.42252.35513.68471.10041.10871.10872.60872.60874.50893.99123.9912
O21.42251.42702.39512.04052.09552.09552.08202.08203.35532.65982.6598
C32.35511.42701.52423.28922.64282.64281.11041.11042.16692.17052.1705
C43.68472.39511.52424.43564.03924.03922.18092.18091.10391.10271.1027
H51.10042.04053.28924.43561.80151.80153.60343.60345.37074.59724.5972
H61.10872.09552.64284.03921.80151.80173.00212.40494.73114.22884.5946
H71.10872.09552.64284.03921.80151.80172.40493.00214.73114.59464.2288
H82.60872.08201.11042.18093.60343.00212.40491.79202.51763.09732.5266
H92.60872.08201.11042.18093.60342.40493.00211.79202.51762.52663.0973
H104.50893.35532.16691.10395.37074.73114.73112.51762.51761.79271.7927
H113.99122.65982.17051.10274.59724.22884.59463.09732.52661.79271.7910
H123.99122.65982.17051.10274.59724.59464.22882.52663.09731.79271.7910

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 111.482 O2 C1 H5 107.267
O2 C1 H6 111.156 O2 C1 H7 111.156
O2 C3 C4 108.450 O2 C3 H8 109.638
O2 C3 H9 109.638 C3 C4 H10 110.047
C3 C4 H11 110.403 C3 C4 H12 110.403
C4 C3 H8 110.761 C4 C3 H9 110.761
H5 C1 H6 109.271 H5 C1 H7 109.271
H6 C1 H7 108.684 H8 C3 H9 107.584
H10 C4 H11 108.669 H10 C4 H12 108.669
H11 C4 H12 108.600
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability