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

using model chemistry: CCSD(T)=FULL/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 CCSD(T)=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-193.867629
Energy at 298.15K-193.876547
HF Energy-193.128675
Nuclear repulsion energy132.527878
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(T)=FULL/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' 3127 3037        
2 A' 3114 3024        
3 A' 3032 2945        
4 A' 2976 2890        
5 A' 2962 2877        
6 A' 1508 1465        
7 A' 1485 1442        
8 A' 1482 1439        
9 A' 1454 1412        
10 A' 1412 1371        
11 A' 1374 1334        
12 A' 1223 1188        
13 A' 1146 1113        
14 A' 1101 1070        
15 A' 1035 1005        
16 A' 857 833        
17 A' 464 450        
18 A' 288 280        
19 A" 3122 3032        
20 A" 3032 2945        
21 A" 2999 2912        
22 A" 1471 1428        
23 A" 1467 1425        
24 A" 1282 1245        
25 A" 1182 1148        
26 A" 1151 1117        
27 A" 811 787        
28 A" 258 251        
29 A" 208 202        
30 A" 108 105        

Unscaled Zero Point Vibrational Energy (zpe) 23564.6 cm-1
Scaled (by 0.9712) Zero Point Vibrational Energy (zpe) 22886.0 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(T)=FULL/aug-cc-pVDZ
ABC
0.91860 0.13716 0.12820

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.332 1.238 0.000
O2 0.002 0.726 0.000
C3 0.000 -0.704 0.000
C4 -1.448 -1.182 0.000
H5 1.260 2.336 0.000
H6 1.888 0.907 0.902
H7 1.888 0.907 -0.902
H8 0.539 -1.079 -0.897
H9 0.539 -1.079 0.897
H10 -1.484 -2.286 0.000
H11 -1.974 -0.812 0.896
H12 -1.974 -0.812 -0.896

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.42552.35483.68631.10111.10981.10982.60762.60764.51103.99213.9921
O21.42551.43012.39692.04312.09882.09882.08582.08583.35892.65962.6596
C32.35481.43011.52533.29082.64092.64091.11161.11162.16932.17082.1708
C43.68632.39691.52534.43994.03894.03892.18282.18281.10461.10321.1032
H51.10112.04313.29084.43991.80321.80323.60363.60365.37544.60114.6011
H61.10982.09882.64094.03891.80321.80363.00022.40094.73114.22774.5942
H71.10982.09882.64094.03891.80321.80362.40093.00024.73114.59424.2277
H82.60762.08581.11162.18283.60363.00022.40091.79462.52093.09892.5270
H92.60762.08581.11162.18283.60362.40093.00021.79462.52092.52703.0989
H104.51103.35892.16931.10465.37544.73114.73112.52092.52091.79381.7938
H113.99212.65962.17081.10324.60114.22774.59423.09892.52701.79381.7928
H123.99212.65962.17081.10324.60114.59424.22772.52703.09891.79381.7928

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 111.098 O2 C1 H5 107.228
O2 C1 H6 111.147 O2 C1 H7 111.147
O2 C3 C4 108.346 O2 C3 H8 109.659
O2 C3 H9 109.659 C3 C4 H10 110.121
C3 C4 H11 110.319 C3 C4 H12 110.319
C4 C3 H8 110.764 C4 C3 H9 110.764
H5 C1 H6 109.290 H5 C1 H7 109.290
H6 C1 H7 108.702 H8 C3 H9 107.642
H10 C4 H11 108.677 H10 C4 H12 108.677
H11 C4 H12 108.681
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability