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

using model chemistry: CCSD/6-31G*

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/6-31G*
 hartrees
Energy at 0K-193.720157
Energy at 298.15K-193.729177
HF Energy-193.103033
Nuclear repulsion energy133.375296
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/6-31G*
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' 3166 2989 32.18      
2 A' 3157 2981 26.35      
3 A' 3080 2908 15.16      
4 A' 3023 2855 65.92      
5 A' 3004 2837 33.94      
6 A' 1588 1500 0.81      
7 A' 1558 1471 5.43      
8 A' 1551 1465 4.11      
9 A' 1523 1438 0.07      
10 A' 1479 1397 37.58      
11 A' 1439 1359 9.45      
12 A' 1273 1202 52.37      
13 A' 1200 1133 109.49      
14 A' 1148 1084 3.85      
15 A' 1069 1009 16.81      
16 A' 896 846 11.09      
17 A' 479 453 0.77      
18 A' 297 280 3.14      
19 A" 3167 2990 26.90      
20 A" 3074 2903 62.78      
21 A" 3036 2866 64.39      
22 A" 1539 1453 5.41      
23 A" 1535 1450 3.76      
24 A" 1328 1254 0.94      
25 A" 1235 1166 10.29      
26 A" 1195 1128 0.02      
27 A" 846 798 0.15      
28 A" 275 259 2.54      
29 A" 219 207 1.84      
30 A" 115 109 3.02      

Unscaled Zero Point Vibrational Energy (zpe) 24246.2 cm-1
Scaled (by 0.9443) Zero Point Vibrational Energy (zpe) 22895.7 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 CCSD/6-31G*
ABC
0.93157 0.13882 0.12973

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.326 -1.232 0.000
O2 -0.010 -0.712 0.000
C3 0.000 0.707 0.000
C4 1.446 1.165 0.000
H5 -1.240 -2.322 0.000
H6 -1.886 -0.913 0.894
H7 -1.886 -0.913 -0.894
H8 -0.532 1.090 -0.889
H9 -0.532 1.090 0.889
H10 1.505 2.260 0.000
H11 1.962 0.785 0.888
H12 1.962 0.785 -0.888

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.41492.34843.66411.09371.10201.10202.60952.60954.49453.95793.9579
O21.41491.41932.37542.02562.08802.08802.07632.07633.33582.63032.6303
C32.34841.41931.51693.27252.64202.64201.10431.10432.16232.15532.1553
C43.66412.37541.51694.40104.02734.02732.16972.16971.09681.09531.0953
H51.09372.02563.27254.40101.78911.78913.59603.59605.34074.54884.5488
H61.10202.08802.64204.02731.78911.78863.00432.41794.72894.20584.5680
H71.10202.08802.64204.02731.78911.78862.41793.00434.72894.56804.2058
H82.60952.07631.10432.16973.59603.00432.41791.77782.51103.07742.5123
H92.60952.07631.10432.16973.59602.41793.00431.77782.51102.51233.0774
H104.49453.33582.16231.09685.34074.72894.72892.51102.51101.78171.7817
H113.95792.63032.15531.09534.54884.20584.56803.07742.51231.78171.7768
H123.95792.63032.15531.09534.54884.56804.20582.51233.07741.78171.7768

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 111.909 O2 C1 H5 107.005
O2 C1 H6 111.510 O2 C1 H7 111.510
O2 C3 C4 107.953 O2 C3 H8 110.097
O2 C3 H9 110.097 C3 C4 H10 110.619
C3 C4 H11 110.146 C3 C4 H12 110.146
C4 C3 H8 110.751 C4 C3 H9 110.751
H5 C1 H6 109.137 H5 C1 H7 109.137
H6 C1 H7 108.492 H8 C3 H9 107.206
H10 C4 H11 108.735 H10 C4 H12 108.735
H11 C4 H12 108.406
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability