return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C4H10O (Ethoxy ethane)

using model chemistry: B3LYP/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no C2V 1A1
Energy calculated at B3LYP/CEP-31G
 hartrees
Energy at 0K-44.521178
Energy at 298.15K-44.532158
HF Energy-44.521178
Nuclear repulsion energy108.145008
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 B3LYP/CEP-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 A1 3128 3029 87.54      
2 A1 3046 2949 2.32      
3 A1 2983 2888 166.20      
4 A1 1539 1490 3.10      
5 A1 1512 1464 7.85      
6 A1 1445 1399 3.62      
7 A1 1417 1373 3.67      
8 A1 1161 1124 11.17      
9 A1 1045 1012 10.73      
10 A1 818 793 5.40      
11 A1 419 405 0.09      
12 A1 183 177 1.44      
13 A2 3143 3043 0.00      
14 A2 3023 2927 0.00      
15 A2 1491 1444 0.00      
16 A2 1275 1235 0.00      
17 A2 1153 1116 0.00      
18 A2 819 793 0.00      
19 A2 233 226 0.00      
20 A2 90 87 0.00      
21 B1 3143 3044 138.33      
22 B1 3025 2929 177.04      
23 B1 1492 1445 15.73      
24 B1 1281 1241 0.13      
25 B1 1179 1142 15.44      
26 B1 832 806 6.33      
27 B1 237 229 2.49      
28 B1 101 98 8.63      
29 B2 3128 3029 44.91      
30 B2 3045 2948 73.79      
31 B2 2971 2877 14.77      
32 B2 1524 1476 1.65      
33 B2 1508 1461 6.72      
34 B2 1425 1380 25.70      
35 B2 1374 1331 45.10      
36 B2 1115 1080 91.17      
37 B2 1094 1059 75.18      
38 B2 942 912 10.30      
39 B2 413 399 5.24      

Unscaled Zero Point Vibrational Energy (zpe) 29873.2 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 28929.2 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 B3LYP/CEP-31G
ABC
0.56961 0.07150 0.06679

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.264
C2 0.000 1.228 -0.542
C3 0.000 -1.228 -0.542
C4 0.000 2.423 0.433
C5 0.000 -2.423 0.433
H6 0.899 1.246 -1.195
H7 -0.899 1.246 -1.195
H8 0.899 -1.246 -1.195
H9 -0.899 -1.246 -1.195
H10 0.000 3.378 -0.124
H11 0.000 -3.378 -0.124
H12 -0.894 2.388 1.078
H13 0.894 2.388 1.078
H14 0.894 -2.388 1.078
H15 -0.894 -2.388 1.078

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15
O11.46881.46882.42852.42852.11862.11862.11862.11863.40023.40022.67652.67652.67652.6765
C21.46882.45571.54193.77841.11101.11102.71172.71172.19034.62482.18372.18374.06164.0616
C31.46882.45573.77841.54192.71172.71171.11101.11104.62482.19034.06164.06162.18372.1837
C42.42851.54193.77844.84532.20042.20044.11284.11281.10585.82731.10291.10294.93534.9353
C52.42853.77841.54194.84534.11284.11282.20042.20045.82731.10584.93534.93531.10291.1029
H62.11861.11102.71172.20044.11281.79732.49173.07232.54964.83053.11182.54364.28604.6458
H72.11861.11102.71172.20044.11281.79733.07232.49172.54964.83052.54363.11184.64584.2860
H82.11862.71171.11104.11282.20042.49173.07231.79734.83052.54964.64584.28602.54363.1118
H92.11862.71171.11104.11282.20043.07232.49171.79734.83052.54964.28604.64583.11182.5436
H103.40022.19034.62481.10585.82732.54962.54964.83054.83056.75601.79561.79565.95735.9573
H113.40024.62482.19035.82731.10584.83054.83052.54962.54966.75605.95735.95731.79561.7956
H122.67652.18374.06161.10294.93533.11182.54364.64584.28601.79565.95731.78785.09964.7759
H132.67652.18374.06161.10294.93532.54363.11184.28604.64581.79565.95731.78784.77595.0996
H142.67654.06162.18374.93531.10294.28604.64582.54363.11185.95731.79565.09964.77591.7878
H152.67654.06162.18374.93531.10294.64584.28603.11182.54365.95731.79564.77595.09961.7878

picture of Ethoxy ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 107.513 O1 C2 H6 109.637
O1 C2 H7 109.637 O1 C3 C5 107.513
O1 C3 H8 109.637 O1 C3 H9 109.637
C2 O1 C3 113.438 C2 C4 H10 110.555
C2 C4 H12 110.202 C2 C4 H13 110.202
C3 C5 H11 110.555 C3 C5 H14 110.202
C3 C5 H15 110.202 C4 C2 H6 111.040
C4 C2 H7 111.040 C5 C3 H8 111.040
C5 C3 H9 111.040 H6 C2 H7 107.969
H8 C3 H9 107.969 H10 C4 H12 108.769
H10 C4 H13 108.769 H11 C5 H14 108.769
H11 C5 H15 108.769 H12 C4 H13 108.288
H14 C5 H15 108.288
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.291      
2 C -0.226      
3 C -0.226      
4 C -0.292      
5 C -0.292      
6 H 0.122      
7 H 0.122      
8 H 0.122      
9 H 0.122      
10 H 0.127      
11 H 0.127      
12 H 0.147      
13 H 0.147      
14 H 0.147      
15 H 0.147      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.715 1.715
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.890 0.000 0.000
y 0.000 8.739 0.000
z 0.000 0.000 6.384


<r2> (average value of r2) Å2
<r2> 151.652
(<r2>)1/2 12.315