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return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for (Ethoxy ethane)

using model chemistry: B1B95/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no C2V 1A1
Energy calculated at B1B95/6-31G(2df,p)
 hartrees
Energy at 0K-233.551603
Energy at 298.15K-233.562774
HF Energy-233.551603
Nuclear repulsion energy190.918240
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 B1B95/6-31G(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 A1 3153 3020 28.85      
2 A1 3066 2936 8.13      
3 A1 2973 2847 100.57      
4 A1 1536 1471 1.63      
5 A1 1496 1433 2.62      
6 A1 1448 1386 6.56      
7 A1 1389 1331 0.30      
8 A1 1186 1136 23.70      
9 A1 1077 1032 10.71      
10 A1 863 827 3.99      
11 A1 439 421 0.04      
12 A1 188 180 0.60      
13 A2 3154 3021 0.00      
14 A2 2998 2871 0.00      
15 A2 1476 1414 0.00      
16 A2 1288 1234 0.00      
17 A2 1168 1119 0.00      
18 A2 809 775 0.00      
19 A2 244 233 0.00      
20 A2 107 103 0.00      
21 B1 3154 3021 45.80      
22 B1 2993 2867 120.22      
23 B1 1477 1414 8.91      
24 B1 1293 1238 4.53      
25 B1 1201 1150 11.68      
26 B1 820 786 1.19      
27 B1 248 238 1.27      
28 B1 105 100 3.30      
29 B2 3153 3020 15.38      
30 B2 3066 2936 24.40      
31 B2 2961 2836 9.56      
32 B2 1513 1449 3.75      
33 B2 1493 1430 1.75      
34 B2 1403 1344 42.41      
35 B2 1372 1314 35.12      
36 B2 1199 1149 207.12      
37 B2 1098 1052 1.41      
38 B2 953 912 3.64      
39 B2 424 406 2.90      

Unscaled Zero Point Vibrational Energy (zpe) 29990.7 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 28722.1 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 B1B95/6-31G(2df,p)
ABC
0.60646 0.07562 0.07080

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.263
C2 0.000 1.167 -0.515
C3 0.000 -1.167 -0.515
C4 0.000 2.364 0.409
C5 0.000 -2.364 0.409
H6 0.884 1.187 -1.173
H7 -0.884 1.187 -1.173
H8 0.884 -1.187 -1.173
H9 -0.884 -1.187 -1.173
H10 0.000 3.292 -0.167
H11 0.000 -3.292 -0.167
H12 -0.884 2.351 1.048
H13 0.884 2.351 1.048
H14 0.884 -2.351 1.048
H15 -0.884 -2.351 1.048

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15
O11.40251.40252.36832.36832.06182.06182.06182.06183.31943.31942.63222.63222.63222.6322
C21.40252.33491.51133.65001.10231.10232.59982.59982.15244.47262.15102.15103.95063.9506
C31.40252.33493.65001.51132.59982.59981.10231.10234.47262.15243.95063.95062.15102.1510
C42.36831.51133.65004.72762.16042.16043.98653.98651.09175.68461.09151.09154.83984.8398
C52.36833.65001.51134.72763.98653.98652.16042.16045.68461.09174.83984.83981.09151.0915
H62.06181.10232.59982.16043.98651.76842.37422.96042.49454.67463.06862.50784.17784.5367
H72.06181.10232.59982.16043.98651.76842.96042.37422.49454.67462.50783.06864.53674.1778
H82.06182.59981.10233.98652.16042.37422.96041.76844.67462.49454.53674.17782.50783.0686
H92.06182.59981.10233.98652.16042.96042.37421.76844.67462.49454.17784.53673.06862.5078
H103.31942.15244.47261.09175.68462.49452.49454.67464.67466.58311.77281.77285.83965.8396
H113.31944.47262.15245.68461.09174.67464.67462.49452.49456.58315.83965.83961.77281.7728
H122.63222.15103.95061.09154.83983.06862.50784.53674.17781.77285.83961.76865.02424.7026
H132.63222.15103.95061.09154.83982.50783.06864.17784.53671.77285.83961.76864.70265.0242
H142.63223.95062.15104.83981.09154.17784.53672.50783.06865.83961.77285.02424.70261.7686
H152.63223.95062.15104.83981.09154.53674.17783.06862.50785.83961.77284.70265.02421.7686

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 108.681 O1 C2 H6 110.222
O1 C2 H7 110.222 O1 C3 C5 108.681
O1 C3 H8 110.222 O1 C3 H9 110.222
C2 O1 C3 112.690 C2 C4 H10 110.525
C2 C4 H12 110.429 C2 C4 H13 110.429
C3 C5 H11 110.525 C3 C5 H14 110.429
C3 C5 H15 110.429 C4 C2 H6 110.525
C4 C2 H7 110.525 C5 C3 H8 110.525
C5 C3 H9 110.525 H6 C2 H7 106.661
H8 C3 H9 106.661 H10 C4 H12 108.583
H10 C4 H13 108.583 H11 C5 H14 108.583
H11 C5 H15 108.583 H12 C4 H13 108.225
H14 C5 H15 108.225
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.265      
2 C -0.041      
3 C -0.041      
4 C -0.409      
5 C -0.409      
6 H 0.093      
7 H 0.093      
8 H 0.093      
9 H 0.093      
10 H 0.124      
11 H 0.124      
12 H 0.136      
13 H 0.136      
14 H 0.136      
15 H 0.136      


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 -0.927 0.927
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.376 0.000 0.000
y 0.000 -30.272 0.000
z 0.000 0.000 -32.932
Traceless
 xyz
x -0.774 0.000 0.000
y 0.000 2.382 0.000
z 0.000 0.000 -1.608
Polar
3z2-r2-3.217
x2-y2-2.104
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.616 0.000 0.000
y 0.000 8.935 0.000
z 0.000 0.000 6.875


<r2> (average value of r2) Å2
<r2> 174.670
(<r2>)1/2 13.216