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

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G3B3
 hartrees
Energy at 0K-194.166094
Energy at 298.15K-194.159518
HF Energy-194.344306
Nuclear repulsion energy133.320214
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 B3LYP/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' 3132 3008 35.55      
2 A' 3130 3006 29.08      
3 A' 3060 2938 17.36      
4 A' 2985 2866 86.27      
5 A' 2963 2846 38.83      
6 A' 1564 1502 0.67      
7 A' 1537 1476 4.24      
8 A' 1530 1469 7.01      
9 A' 1504 1445 0.34      
10 A' 1451 1394 37.90      
11 A' 1420 1364 9.77      
12 A' 1249 1200 45.06      
13 A' 1173 1126 143.41      
14 A' 1129 1084 5.37      
15 A' 1038 997 15.09      
16 A' 877 842 11.70      
17 A' 468 449 0.55      
18 A' 289 277 2.75      
19 A" 3136 3011 31.19      
20 A" 3022 2902 73.81      
21 A" 2989 2870 78.34      
22 A" 1515 1455 9.01      
23 A" 1514 1454 0.00      
24 A" 1312 1260 1.29      
25 A" 1215 1167 9.83      
26 A" 1180 1133 0.08      
27 A" 833 800 0.31      
28 A" 269 258 2.21      
29 A" 216 207 1.08      
30 A" 117 112 2.92      

Unscaled Zero Point Vibrational Energy (zpe) 23907.2 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 22958.1 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 B3LYP/6-31G*
ABC
0.94018 0.13799 0.12914

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.320 1.243 0.000
O2 0.015 0.710 0.000
C3 0.000 -0.706 0.000
C4 -1.446 -1.174 0.000
H5 1.227 2.332 0.000
H6 1.890 0.934 0.893
H7 1.890 0.934 -0.893
H8 0.532 -1.093 -0.887
H9 0.532 -1.093 0.887
H10 -1.496 -2.268 0.000
H11 -1.969 -0.801 0.887
H12 -1.969 -0.801 -0.887

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.40922.35363.67301.09351.10291.10292.61932.61934.50083.97253.9725
O21.40921.41602.38412.02472.08812.08812.07442.07443.33972.64712.6471
C32.35361.41601.52013.27652.65662.65661.10451.10452.16322.16172.1617
C43.67302.38411.52014.40874.04594.04592.17002.17001.09571.09481.0948
H51.09352.02473.27654.40871.78631.78633.60533.60535.34584.56254.5625
H61.10292.08812.65664.04591.78631.78523.01962.43934.74524.23094.5899
H71.10292.08812.65664.04591.78631.78522.43933.01964.74524.58994.2309
H82.61932.07441.10452.17003.60533.01962.43931.77442.50693.08042.5183
H92.61932.07441.10452.17003.60532.43933.01961.77442.50692.51833.0804
H104.50083.33972.16321.09575.34584.74524.74522.50692.50691.77831.7783
H113.97252.64712.16171.09484.56254.23094.58993.08042.51831.77831.7738
H123.97252.64712.16171.09484.56254.58994.23092.51833.08041.77831.7738

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 113.423 O2 C1 H5 107.404
O2 C1 H6 112.131 O2 C1 H7 112.131
O2 C3 C4 108.655 O2 C3 H8 110.434
O2 C3 H9 110.434 C3 C4 H10 110.550
C3 C4 H11 110.416 C3 C4 H12 110.416
C4 C3 H8 110.263 C4 C3 H9 110.263
H5 C1 H6 108.585 H5 C1 H7 108.585
H6 C1 H7 107.901 H8 C3 H9 106.790
H10 C4 H11 108.576 H10 C4 H12 108.576
H11 C4 H12 108.239
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.190      
2 O -0.455      
3 C -0.004      
4 C -0.452      
5 H 0.157      
6 H 0.127      
7 H 0.127      
8 H 0.116      
9 H 0.116      
10 H 0.142      
11 H 0.158      
12 H 0.158      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.921 -0.676 0.000 1.143
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 103.561
(<r2>)1/2 10.176