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

using model chemistry: CCSD/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 CCSD/cc-pVDZ
 hartrees
Energy at 0K-193.792507
Energy at 298.15K-193.801508
HF Energy-193.117478
Nuclear repulsion energy133.195552
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/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' 3157 2991 31.32      
2 A' 3156 2990 28.30      
3 A' 3070 2908 17.45      
4 A' 3007 2849 80.54      
5 A' 2989 2832 34.12      
6 A' 1538 1457 0.68      
7 A' 1509 1430 6.81      
8 A' 1502 1423 2.34      
9 A' 1485 1407 0.04      
10 A' 1444 1368 46.93      
11 A' 1398 1324 6.13      
12 A' 1257 1190 67.60      
13 A' 1199 1136 109.23      
14 A' 1124 1065 2.61      
15 A' 1066 1010 17.67      
16 A' 889 842 10.57      
17 A' 475 450 0.67      
18 A' 292 276 2.37      
19 A" 3162 2995 27.46      
20 A" 3060 2899 67.69      
21 A" 3025 2866 74.56      
22 A" 1487 1409 5.08      
23 A" 1481 1403 3.80      
24 A" 1303 1234 2.18      
25 A" 1210 1146 11.76      
26 A" 1174 1112 0.02      
27 A" 826 782 0.02      
28 A" 272 257 2.38      
29 A" 216 204 1.40      
30 A" 112 106 2.24      

Unscaled Zero Point Vibrational Energy (zpe) 23942.6 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 22680.8 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/cc-pVDZ
ABC
0.92614 0.13881 0.12974

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.325 1.224 0.000
O2 0.011 0.715 0.000
C3 0.000 -0.700 0.000
C4 -1.450 -1.164 0.000
H5 1.256 2.324 0.000
H6 1.893 0.901 0.899
H7 1.893 0.901 -0.899
H8 0.535 -1.090 -0.895
H9 0.535 -1.090 0.895
H10 -1.504 -2.267 0.000
H11 -1.972 -0.783 0.895
H12 -1.972 -0.783 -0.895

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.40992.33643.66131.10221.11121.11122.60442.60444.49393.96233.9623
O21.40991.41492.37992.03482.09412.09412.08192.08193.34482.64092.6409
C32.33641.41491.52233.27452.63682.63681.11301.11302.17222.16692.1669
C43.66132.37991.52234.41464.03054.03052.17812.17811.10451.10391.1039
H51.10222.03483.27454.41461.80001.80003.60273.60275.35704.56864.5686
H61.11122.09412.63684.03051.80001.79813.00442.41024.73104.21534.5812
H71.11122.09412.63684.03051.80001.79812.41023.00444.73104.58124.2153
H82.60442.08191.11302.17813.60273.00442.41021.78942.51823.09502.5251
H92.60442.08191.11302.17813.60272.41023.00441.78942.51822.52513.0950
H104.49393.34482.17221.10455.35704.73104.73102.51822.51821.79531.7953
H113.96232.64092.16691.10394.56864.21534.58123.09502.52511.79531.7899
H123.96232.64092.16691.10394.56864.58124.21532.52513.09501.79531.7899

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 111.601 O2 C1 H5 107.560
O2 C1 H6 111.779 O2 C1 H7 111.779
O2 C3 C4 108.184 O2 C3 H8 110.316
O2 C3 H9 110.316 C3 C4 H10 110.560
C3 C4 H11 110.178 C3 C4 H12 110.178
C4 C3 H8 110.519 C4 C3 H9 110.519
H5 C1 H6 108.820 H5 C1 H7 108.820
H6 C1 H7 108.012 H8 C3 H9 106.999
H10 C4 H11 108.769 H10 C4 H12 108.769
H11 C4 H12 108.334
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability