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

using model chemistry: PBEPBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-194.100094
Energy at 298.15K-194.108959
HF Energy-194.100094
Nuclear repulsion energy133.061998
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 PBEPBE/6-31G(2df,p)
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' 3072 3040 19.51      
2 A' 3050 3019 27.16      
3 A' 2987 2956 15.25      
4 A' 2891 2861 80.37      
5 A' 2867 2838 41.37      
6 A' 1484 1469 1.55      
7 A' 1458 1443 3.37      
8 A' 1448 1433 6.67      
9 A' 1427 1412 0.15      
10 A' 1373 1358 34.96      
11 A' 1342 1328 1.37      
12 A' 1196 1183 37.52      
13 A' 1137 1126 136.22      
14 A' 1081 1070 3.87      
15 A' 1016 1006 15.76      
16 A' 847 838 8.04      
17 A' 456 451 0.43      
18 A' 279 276 2.36      
19 A" 3070 3039 21.76      
20 A" 2931 2901 56.73      
21 A" 2892 2863 76.11      
22 A" 1433 1418 7.06      
23 A" 1430 1416 2.72      
24 A" 1251 1238 1.52      
25 A" 1163 1151 8.39      
26 A" 1129 1117 0.29      
27 A" 796 788 0.68      
28 A" 257 255 1.81      
29 A" 209 207 0.39      
30 A" 119 118 2.19      

Unscaled Zero Point Vibrational Energy (zpe) 23045.3 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 22807.9 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 PBEPBE/6-31G(2df,p)
ABC
0.92890 0.13817 0.12919

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.321 1.235 0.000
O2 0.008 0.718 0.000
C3 0.000 -0.700 0.000
C4 -1.445 -1.176 0.000
H5 1.244 2.333 0.000
H6 1.894 0.917 0.897
H7 1.894 0.917 -0.897
H8 0.541 -1.088 -0.892
H9 0.541 -1.088 0.892
H10 -1.487 -2.277 0.000
H11 -1.973 -0.806 0.892
H12 -1.973 -0.806 -0.892

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.41082.34243.66891.10111.11161.11162.60782.60784.49603.97613.9761
O21.41081.41772.38722.03392.09832.09832.08402.08403.34722.65382.6538
C32.34241.41771.52123.27822.64702.64701.11371.11372.16752.16812.1681
C43.66892.38721.52124.42114.04154.04152.17892.17891.10131.10121.1012
H51.10112.03393.27824.42111.79851.79853.60523.60525.35834.58264.5826
H61.11162.09832.64704.04151.79851.79503.00912.41884.73674.23374.5963
H71.11162.09832.64704.04151.79851.79502.41883.00914.73674.59634.2337
H82.60782.08401.11372.17893.60523.00912.41881.78492.51443.09622.5303
H92.60782.08401.11372.17893.60522.41883.00911.78492.51442.53033.0962
H104.49603.34722.16751.10135.35834.73674.73672.51442.51441.78791.7879
H113.97612.65382.16811.10124.58264.23374.59633.09622.53031.78791.7839
H123.97612.65382.16811.10124.58264.59634.23372.53033.09621.78791.7839

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 111.815 O2 C1 H5 107.500
O2 C1 H6 112.039 O2 C1 H7 112.039
O2 C3 C4 108.585 O2 C3 H8 110.251
O2 C3 H9 110.251 C3 C4 H10 110.462
C3 C4 H11 110.517 C3 C4 H12 110.517
C4 C3 H8 110.618 C4 C3 H9 110.618
H5 C1 H6 108.746 H5 C1 H7 108.746
H6 C1 H7 107.687 H8 C3 H9 106.517
H10 C4 H11 108.539 H10 C4 H12 108.539
H11 C4 H12 108.196
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.269      
2 O -0.189      
3 C -0.064      
4 C -0.418      
5 H 0.134      
6 H 0.110      
7 H 0.110      
8 H 0.093      
9 H 0.093      
10 H 0.126      
11 H 0.138      
12 H 0.138      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.736 -0.606 0.000 0.953
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.442 1.528 0.000
y 1.528 -25.420 0.000
z 0.000 0.000 -26.326
Traceless
 xyz
x 0.431 1.528 0.000
y 1.528 0.465 0.000
z 0.000 0.000 -0.896
Polar
3z2-r2-1.791
x2-y2-0.023
xy1.528
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.336 0.884 0.000
y 0.884 6.383 0.000
z 0.000 0.000 5.392


<r2> (average value of r2) Å2
<r2> 103.649
(<r2>)1/2 10.181