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

using model chemistry: PBEPBEultrafine/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBEultrafine/3-21G
 hartrees
Energy at 0K-193.023129
Energy at 298.15K-193.031977
HF Energy-193.023129
Nuclear repulsion energy131.030633
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 PBEPBEultrafine/3-21G
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' 3077 3049 19.82      
2 A' 3058 3030 26.07      
3 A' 2999 2972 12.04      
4 A' 2904 2877 76.90      
5 A' 2890 2864 30.05      
6 A' 1547 1533 1.27      
7 A' 1530 1516 3.84      
8 A' 1520 1506 15.23      
9 A' 1459 1446 0.66      
10 A' 1406 1393 15.57      
11 A' 1371 1358 27.03      
12 A' 1175 1165 17.52      
13 A' 1089 1079 12.64      
14 A' 1064 1054 98.51      
15 A' 981 972 8.01      
16 A' 820 812 7.99      
17 A' 444 440 1.08      
18 A' 267 265 3.89      
19 A" 3080 3052 22.30      
20 A" 2937 2910 68.19      
21 A" 2920 2893 75.74      
22 A" 1502 1489 8.29      
23 A" 1498 1484 7.04      
24 A" 1276 1264 0.06      
25 A" 1161 1150 6.05      
26 A" 1117 1107 0.58      
27 A" 840 832 2.00      
28 A" 262 260 2.87      
29 A" 211 209 0.21      
30 A" 115 114 3.92      

Unscaled Zero Point Vibrational Energy (zpe) 23258.9 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 23047.2 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 PBEPBEultrafine/3-21G
ABC
0.88184 0.13504 0.12560

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.371 1.233 0.000
O2 0.000 0.730 0.000
C3 -0.005 -0.737 0.000
C4 -1.479 -1.156 0.000
H5 1.293 2.331 0.000
H6 1.939 0.909 0.899
H7 1.939 0.909 -0.899
H8 0.517 -1.136 -0.898
H9 0.517 -1.136 0.898
H10 -1.571 -2.255 0.000
H11 -1.977 -0.748 0.895
H12 -1.977 -0.748 -0.895

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.46052.40303.71871.10151.11171.11172.67292.67294.56333.99213.9921
O21.46051.46662.39642.05832.14512.14512.13372.13373.37312.62582.6258
C32.40301.46661.53203.33172.70172.70171.11271.11272.18112.16552.1655
C43.71872.39641.53204.45464.09354.09352.18892.18891.10311.10241.1024
H51.10152.05833.33174.45461.80281.80283.66443.66445.40734.58014.5801
H61.11172.14512.70174.09351.80281.79793.07102.49054.81094.25294.6157
H71.11172.14512.70174.09351.80281.79792.49053.07104.81094.61574.2529
H82.67292.13371.11272.18893.66443.07102.49051.79572.53403.09612.5244
H92.67292.13371.11272.18893.66442.49053.07101.79572.53402.52443.0961
H104.56333.37312.18111.10315.40734.81094.81092.53402.53401.79891.7989
H113.99212.62582.16551.10244.58014.25294.61573.09612.52441.79891.7895
H123.99212.62582.16551.10244.58014.61574.25292.52443.09611.79891.7895

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 110.359 O2 C1 H5 106.063
O2 C1 H6 112.305 O2 C1 H7 112.305
O2 C3 C4 106.079 O2 C3 H8 110.886
O2 C3 H9 110.886 C3 C4 H10 110.674
C3 C4 H11 109.495 C3 C4 H12 109.495
C4 C3 H8 110.717 C4 C3 H9 110.717
H5 C1 H6 109.087 H5 C1 H7 109.087
H6 C1 H7 107.919 H8 C3 H9 107.595
H10 C4 H11 109.309 H10 C4 H12 109.309
H11 C4 H12 108.523
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.373      
2 O -0.431      
3 C -0.172      
4 C -0.615      
5 H 0.216      
6 H 0.184      
7 H 0.184      
8 H 0.185      
9 H 0.185      
10 H 0.199      
11 H 0.220      
12 H 0.220      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.037 -0.746 0.000 1.277
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.946 1.933 0.000
y 1.933 -25.312 0.000
z 0.000 0.000 -26.575
Traceless
 xyz
x 0.998 1.933 0.000
y 1.933 0.449 0.000
z 0.000 0.000 -1.446
Polar
3z2-r2-2.892
x2-y20.366
xy1.933
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.722 0.878 0.000
y 0.878 5.831 0.000
z 0.000 0.000 4.776


<r2> (average value of r2) Å2
<r2> 105.772
(<r2>)1/2 10.285