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

using model chemistry: CCSD(T)/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(T)/6-31G*
 hartrees
Energy at 0K-193.736250
Energy at 298.15K-193.745251
HF Energy-193.102465
Nuclear repulsion energy133.158962
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)/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' 3147 3027        
2 A' 3139 3020        
3 A' 3061 2945        
4 A' 3001 2887        
5 A' 2980 2867        
6 A' 1578 1518        
7 A' 1549 1491        
8 A' 1543 1485        
9 A' 1512 1455        
10 A' 1467 1412        
11 A' 1428 1374        
12 A' 1259 1211        
13 A' 1181 1136        
14 A' 1138 1095        
15 A' 1056 1016        
16 A' 886 852        
17 A' 476 458        
18 A' 296 284        
19 A" 3150 3031        
20 A" 3052 2936        
21 A" 3011 2897        
22 A" 1530 1472        
23 A" 1529 1471        
24 A" 1317 1267        
25 A" 1226 1180        
26 A" 1185 1140        
27 A" 840 808        
28 A" 275 264        
29 A" 220 212        
30 A" 114 110        

Unscaled Zero Point Vibrational Energy (zpe) 24072.3 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 23160.0 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)/6-31G*
ABC
0.92604 0.13855 0.12943

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.329 1.230 0.000
O2 0.007 0.716 0.000
C3 0.000 -0.707 0.000
C4 -1.448 -1.165 0.000
H5 1.247 2.322 0.000
H6 1.888 0.909 0.896
H7 1.888 0.909 -0.896
H8 0.533 -1.090 -0.891
H9 0.533 -1.090 0.891
H10 -1.506 -2.262 0.000
H11 -1.964 -0.785 0.890
H12 -1.964 -0.785 -0.890

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.41872.34973.66781.09531.10381.10382.61012.61014.49883.96263.9626
O21.41871.42302.37832.02922.09242.09242.08112.08113.34052.63292.6329
C32.34971.42301.51883.27612.64192.64191.10621.10622.16502.15782.1578
C43.66782.37831.51884.40744.02934.02932.17312.17311.09841.09671.0967
H51.09532.02923.27614.40741.79241.79243.59853.59855.34774.55634.5563
H61.10382.09242.64194.02931.79241.79163.00422.41534.73094.20864.5717
H71.10382.09242.64194.02931.79241.79162.41533.00424.73094.57174.2086
H82.61012.08111.10622.17313.59853.00422.41531.78142.51493.08182.5153
H92.61012.08111.10622.17313.59852.41533.00421.78142.51492.51533.0818
H104.49883.34052.16501.09845.34774.73094.73092.51492.51491.78391.7839
H113.96262.63292.15781.09674.55634.20864.57173.08182.51531.78391.7799
H123.96262.63292.15781.09674.55634.57174.20862.51533.08181.78391.7799

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 111.555 O2 C1 H5 106.932
O2 C1 H6 111.487 O2 C1 H7 111.487
O2 C3 C4 107.845 O2 C3 H8 110.105
O2 C3 H9 110.105 C3 C4 H10 110.600
C3 C4 H11 110.135 C3 C4 H12 110.135
C4 C3 H8 110.773 C4 C3 H9 110.773
H5 C1 H6 109.192 H5 C1 H7 109.192
H6 C1 H7 108.504 H8 C3 H9 107.254
H10 C4 H11 108.717 H10 C4 H12 108.717
H11 C4 H12 108.486
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability