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

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-193.171215
Energy at 298.15K-193.180154
HF Energy-193.171215
Nuclear repulsion energy132.374913
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 B1B95/3-21G
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' 3175 3037 19.52      
2 A' 3163 3026 25.14      
3 A' 3096 2962 11.46      
4 A' 3016 2885 68.02      
5 A' 3007 2877 22.46      
6 A' 1596 1527 1.49      
7 A' 1578 1509 5.86      
8 A' 1568 1500 12.44      
9 A' 1512 1446 0.48      
10 A' 1459 1395 16.89      
11 A' 1427 1365 23.50      
12 A' 1223 1170 27.35      
13 A' 1134 1085 80.89      
14 A' 1126 1077 28.79      
15 A' 1020 976 7.69      
16 A' 858 820 8.69      
17 A' 453 434 1.31      
18 A' 273 261 4.37      
19 A" 3181 3044 20.85      
20 A" 3058 2925 60.07      
21 A" 3041 2909 67.57      
22 A" 1552 1485 10.65      
23 A" 1549 1482 5.69      
24 A" 1326 1269 0.00      
25 A" 1206 1153 8.53      
26 A" 1162 1112 0.26      
27 A" 866 828 1.85      
28 A" 262 251 2.99      
29 A" 213 204 0.49      
30 A" 116 111 4.68      

Unscaled Zero Point Vibrational Energy (zpe) 24106.2 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 23062.4 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 B1B95/3-21G
ABC
0.90645 0.13730 0.12785

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.344 1.241 0.000
O2 0.000 0.715 0.000
C3 0.002 -0.733 0.000
C4 -1.457 -1.159 0.000
H5 1.251 2.327 0.000
H6 1.907 0.928 0.890
H7 1.907 0.928 -0.890
H8 0.523 -1.119 -0.888
H9 0.523 -1.119 0.888
H10 -1.546 -2.247 0.000
H11 -1.952 -0.757 0.885
H12 -1.952 -0.757 -0.885

Atom - Atom Distances (Å)
  C1 O2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.44342.38723.68891.08961.09851.09852.65232.65234.53003.95463.9546
O21.44341.44852.37412.04042.11522.11522.10422.10423.34162.60002.6000
C32.38721.44851.52023.30522.67922.67921.09931.09932.16532.14542.1454
C43.68892.37411.52024.41454.05764.05762.17032.17031.09191.09101.0910
H51.08962.04043.30524.41451.78311.78313.63253.63255.36164.53354.5335
H61.09852.11522.67924.05761.78311.77903.04392.47104.77434.21074.5694
H71.09852.11522.67924.05761.78311.77902.47103.04394.77434.56944.2107
H82.65232.10421.09932.17033.63253.04392.47101.77592.51783.06582.5011
H92.65232.10421.09932.17033.63252.47103.04391.77592.51782.50113.0658
H104.53003.34162.16531.09195.36164.77434.77432.51782.51781.78061.7806
H113.95462.60002.14541.09104.53354.21074.56943.06582.50111.78061.7703
H123.95462.60002.14541.09104.53354.56944.21072.50113.06581.78061.7703

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 111.273 O2 C1 H5 106.482
O2 C1 H6 111.925 O2 C1 H7 111.925
O2 C3 C4 106.179 O2 C3 H8 110.607
O2 C3 H9 110.607 C3 C4 H10 110.921
C3 C4 H11 109.392 C3 C4 H12 109.392
C4 C3 H8 110.864 C4 C3 H9 110.864
H5 C1 H6 109.156 H5 C1 H7 109.156
H6 C1 H7 108.140 H8 C3 H9 107.751
H10 C4 H11 109.319 H10 C4 H12 109.319
H11 C4 H12 108.456
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.352      
2 O -0.497      
3 C -0.157      
4 C -0.625      
5 H 0.222      
6 H 0.187      
7 H 0.187      
8 H 0.191      
9 H 0.191      
10 H 0.202      
11 H 0.225      
12 H 0.225      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.184 -0.797 0.000 1.427
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.725 2.041 0.000
y 2.041 -25.108 0.000
z 0.000 0.000 -26.369
Traceless
 xyz
x 1.013 2.041 0.000
y 2.041 0.439 0.000
z 0.000 0.000 -1.452
Polar
3z2-r2-2.905
x2-y20.383
xy2.041
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.413 0.771 0.000
y 0.771 5.583 0.000
z 0.000 0.000 4.637


<r2> (average value of r2) Å2
<r2> 104.027
(<r2>)1/2 10.199