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

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-193.230729
Energy at 298.15K-193.239667
HF Energy-193.230729
Nuclear repulsion energy132.175559
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 mPW1PW91/3-21G*
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' 3168 3009 19.50      
2 A' 3158 2999 25.13      
3 A' 3089 2934 11.59      
4 A' 3014 2862 68.52      
5 A' 3004 2852 23.50      
6 A' 1598 1518 1.61      
7 A' 1580 1501 6.52      
8 A' 1570 1491 12.12      
9 A' 1515 1438 0.38      
10 A' 1460 1387 17.59      
11 A' 1429 1357 23.47      
12 A' 1226 1164 26.58      
13 A' 1136 1078 71.07      
14 A' 1128 1071 39.24      
15 A' 1021 969 7.31      
16 A' 858 815 8.67      
17 A' 457 434 1.29      
18 A' 276 262 4.47      
19 A" 3174 3014 21.07      
20 A" 3055 2901 64.33      
21 A" 3038 2885 63.12      
22 A" 1555 1477 10.28      
23 A" 1551 1473 6.21      
24 A" 1329 1262 0.00      
25 A" 1207 1146 8.13      
26 A" 1165 1106 0.39      
27 A" 867 824 1.94      
28 A" 263 249 3.18      
29 A" 213 203 0.48      
30 A" 115 109 4.81      

Unscaled Zero Point Vibrational Energy (zpe) 24108.8 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 22893.7 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 mPW1PW91/3-21G*
ABC
0.90598 0.13672 0.12737

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.343 1.248 0.000
O2 0.000 0.716 0.000
C3 0.003 -0.734 0.000
C4 -1.456 -1.166 0.000
H5 1.243 2.335 0.000
H6 1.909 0.939 0.891
H7 1.909 0.939 -0.891
H8 0.524 -1.121 -0.889
H9 0.524 -1.121 0.889
H10 -1.539 -2.256 0.000
H11 -1.954 -0.766 0.887
H12 -1.954 -0.766 -0.887

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.44432.39213.69621.09141.10011.10012.65982.65984.53743.96393.9639
O21.44431.44972.37942.04152.11862.11862.10732.10733.34722.60792.6079
C32.39211.44971.52233.30992.68772.68771.10101.10102.16752.14942.1494
C43.69622.37941.52234.42094.06824.06822.17172.17171.09371.09281.0928
H51.09142.04153.30994.42091.78501.78503.64053.64055.36894.54174.5417
H61.10012.11862.68774.06821.78501.78153.05442.48224.78494.22304.5818
H71.10012.11862.68774.06821.78501.78152.48223.05444.78494.58184.2230
H82.65982.10731.10102.17173.64053.05442.48221.77822.51763.07002.5043
H92.65982.10731.10102.17173.64052.48223.05441.77822.51762.50433.0700
H104.53743.34722.16751.09375.36894.78494.78492.51762.51761.78331.7833
H113.96392.60792.14941.09284.54174.22304.58183.07002.50431.78331.7733
H123.96392.60792.14941.09284.54174.58184.22302.50433.07001.78331.7733

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 111.493 O2 C1 H5 106.408
O2 C1 H6 112.034 O2 C1 H7 112.034
O2 C3 C4 106.352 O2 C3 H8 110.672
O2 C3 H9 110.672 C3 C4 H10 110.839
C3 C4 H11 109.461 C3 C4 H12 109.461
C4 C3 H8 110.732 C4 C3 H9 110.732
H5 C1 H6 109.084 H5 C1 H7 109.084
H6 C1 H7 108.130 H8 C3 H9 107.713
H10 C4 H11 109.294 H10 C4 H12 109.294
H11 C4 H12 108.453
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.370      
2 O -0.497      
3 C -0.165      
4 C -0.646      
5 H 0.228      
6 H 0.193      
7 H 0.193      
8 H 0.196      
9 H 0.196      
10 H 0.208      
11 H 0.232      
12 H 0.232      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.190 -0.796 0.000 1.431
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.739 2.040 0.000
y 2.040 -25.103 0.000
z 0.000 0.000 -26.380
Traceless
 xyz
x 1.003 2.040 0.000
y 2.040 0.457 0.000
z 0.000 0.000 -1.459
Polar
3z2-r2-2.919
x2-y20.364
xy2.040
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.407 0.767 0.000
y 0.767 5.584 0.000
z 0.000 0.000 4.638


<r2> (average value of r2) Å2
<r2> 104.374
(<r2>)1/2 10.216