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

using model chemistry: HF/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 HF/6-31G**
 hartrees
Energy at 0K-193.117398
Energy at 298.15K-193.126565
HF Energy-193.117398
Nuclear repulsion energy134.545583
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 HF/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' 3277 2958 51.23      
2 A' 3260 2942 44.95      
3 A' 3191 2880 22.67      
4 A' 3150 2843 96.41      
5 A' 3132 2827 30.95      
6 A' 1670 1508 0.74      
7 A' 1640 1480 5.96      
8 A' 1631 1472 2.28      
9 A' 1620 1462 0.52      
10 A' 1573 1420 49.86      
11 A' 1529 1380 7.75      
12 A' 1368 1235 84.28      
13 A' 1288 1163 157.12      
14 A' 1214 1096 7.06      
15 A' 1115 1006 16.58      
16 A' 947 854 13.22      
17 A' 498 450 0.80      
18 A' 309 279 3.01      
19 A" 3272 2953 47.79      
20 A" 3194 2883 96.32      
21 A" 3163 2855 65.06      
22 A" 1627 1469 4.14      
23 A" 1612 1455 2.86      
24 A" 1418 1280 2.40      
25 A" 1310 1182 13.76      
26 A" 1276 1152 0.00      
27 A" 885 799 0.00      
28 A" 283 256 2.77      
29 A" 222 200 2.53      
30 A" 118 106 3.37      

Unscaled Zero Point Vibrational Energy (zpe) 25394.4 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 22921.0 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 HF/6-31G**
ABC
0.96716 0.13972 0.13097

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.255 1.294 0.000
O2 0.000 0.693 0.000
C3 0.031 -0.704 0.000
C4 -1.394 -1.219 0.000
H5 1.108 2.366 0.000
H6 1.831 1.019 0.883
H7 1.831 1.019 -0.883
H8 0.566 -1.068 -0.878
H9 0.566 -1.068 0.878
H10 -1.407 -2.305 0.000
H11 -1.923 -0.867 0.879
H12 -1.923 -0.867 -0.879

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.39162.34293.65151.08211.08961.08962.61172.61174.47583.94233.9423
O21.39161.39702.36632.00662.05922.05922.04732.04733.31122.62742.6274
C32.34291.39701.51523.25302.64402.64401.09111.09112.15142.14842.1484
C43.65152.36631.51524.37184.02424.02422.15362.15361.08581.08431.0843
H51.08212.00663.25304.37181.76531.76533.58503.58505.30444.51784.5178
H61.08962.05922.64404.02421.76531.76633.00952.44034.72354.20154.5560
H71.08962.05922.64404.02421.76531.76632.44033.00954.72354.55604.2015
H82.61172.04731.09112.15363.58503.00952.44031.75612.48873.05342.4973
H92.61172.04731.09112.15363.58502.44033.00951.75612.48872.49733.0534
H104.47583.31122.15141.08585.30444.72354.72352.48872.48871.76241.7624
H113.94232.62742.14841.08434.51784.20154.55603.05342.49731.76241.7577
H123.94232.62742.14841.08434.51784.55604.20152.49733.05341.76241.7577

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 114.314 O2 C1 H5 107.760
O2 C1 H6 111.605 O2 C1 H7 111.605
O2 C3 C4 108.622 O2 C3 H8 110.137
O2 C3 H9 110.137 C3 C4 H10 110.525
C3 C4 H11 110.370 C3 C4 H12 110.370
C4 C3 H8 110.383 C4 C3 H9 110.383
H5 C1 H6 108.749 H5 C1 H7 108.749
H6 C1 H7 108.299 H8 C3 H9 107.177
H10 C4 H11 108.608 H10 C4 H12 108.608
H11 C4 H12 108.296
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.004      
2 O -0.621      
3 C 0.123      
4 C -0.345      
5 H 0.125      
6 H 0.092      
7 H 0.092      
8 H 0.089      
9 H 0.089      
10 H 0.107      
11 H 0.127      
12 H 0.127      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.144 -0.715 0.000 1.349
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.492 1.856 0.000
y 1.856 -25.402 0.000
z 0.000 0.000 -26.574
Traceless
 xyz
x 0.496 1.856 0.000
y 1.856 0.631 0.000
z 0.000 0.000 -1.127
Polar
3z2-r2-2.254
x2-y2-0.090
xy1.856
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.364 0.553 0.000
y 0.553 5.628 0.000
z 0.000 0.000 4.919


<r2> (average value of r2) Å2
<r2> 102.387
(<r2>)1/2 10.119