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

using model chemistry: HF/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-43.354869
Energy at 298.15K-43.366209
Nuclear repulsion energy109.477611
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 HF/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 3297 2972 120.60      
2 A1 3221 2903 4.28      
3 A1 3194 2879 175.31      
4 A1 1674 1509 1.04      
5 A1 1636 1475 9.05      
6 A1 1587 1430 2.20      
7 A1 1549 1396 1.14      
8 A1 1272 1147 19.45      
9 A1 1135 1023 14.16      
10 A1 912 822 11.03      
11 A1 449 405 0.29      
12 A1 193 174 1.30      
13 A2 3315 2989 0.00      
14 A2 3231 2913 0.00      
15 A2 1618 1458 0.00      
16 A2 1400 1262 0.00      
17 A2 1271 1145 0.00      
18 A2 887 799 0.00      
19 A2 252 227 0.00      
20 A2 90 82 0.00      
21 B1 3317 2990 201.43      
22 B1 3237 2918 174.66      
23 B1 1618 1459 10.82      
24 B1 1407 1268 2.28      
25 B1 1297 1169 23.28      
26 B1 901 812 1.21      
27 B1 260 234 3.73      
28 B1 107 97 11.00      
29 B2 3296 2971 60.34      
30 B2 3217 2900 112.10      
31 B2 3184 2870 1.95      
32 B2 1661 1497 4.59      
33 B2 1635 1473 1.34      
34 B2 1560 1407 30.63      
35 B2 1515 1366 62.22      
36 B2 1246 1123 215.62      
37 B2 1202 1083 3.46      
38 B2 1023 923 9.46      
39 B2 446 402 5.02      

Unscaled Zero Point Vibrational Energy (zpe) 32154.3 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 28983.9 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 HF/CEP-31G
ABC
0.57517 0.07315 0.06820

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.218
C2 0.000 1.223 -0.542
C3 0.000 -1.223 -0.542
C4 0.000 2.391 0.448
C5 0.000 -2.391 0.448
H6 0.884 1.254 -1.184
H7 -0.884 1.254 -1.184
H8 0.884 -1.254 -1.184
H9 -0.884 -1.254 -1.184
H10 0.000 3.345 -0.083
H11 0.000 -3.345 -0.083
H12 -0.882 2.344 1.084
H13 0.882 2.344 1.084
H14 0.882 -2.344 1.084
H15 -0.882 -2.344 1.084

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15
O11.43961.43962.40242.40242.07822.07822.07822.07823.35883.35882.65022.65022.65022.6502
C21.43962.44551.53153.74721.09321.09322.70682.70682.17174.59112.16322.16324.01804.0180
C31.43962.44553.74721.53152.70682.70681.09321.09324.59112.17174.01804.01802.16322.1632
C42.40241.53153.74724.78282.17692.17694.09044.09041.09175.76121.08871.08874.85884.8588
C52.40243.74721.53154.78284.09044.09042.17692.17695.76121.09174.85884.85881.08871.0887
H62.07821.09322.70682.17694.09041.76872.50743.06852.52374.81093.07462.51634.25294.6053
H72.07821.09322.70682.17694.09041.76873.06852.50742.52374.81092.51633.07464.60534.2529
H82.07822.70681.09324.09042.17692.50743.06851.76874.81092.52374.60534.25292.51633.0746
H92.07822.70681.09324.09042.17693.06852.50741.76874.81092.52374.25294.60533.07462.5163
H103.35882.17174.59111.09175.76122.52372.52374.81094.81096.69071.77281.77285.87455.8745
H113.35884.59112.17175.76121.09174.81094.81092.52372.52376.69075.87455.87451.77281.7728
H122.65022.16324.01801.08874.85883.07462.51634.60534.25291.77285.87451.76475.00934.6882
H132.65022.16324.01801.08874.85882.51633.07464.25294.60531.77285.87451.76474.68825.0093
H142.65024.01802.16324.85881.08874.25294.60532.51633.07465.87451.77285.00934.68821.7647
H152.65024.01802.16324.85881.08874.60534.25293.07462.51635.87451.77284.68825.00931.7647

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 107.877 O1 C2 H6 109.511
O1 C2 H7 109.511 O1 C3 C5 107.877
O1 C3 H8 109.511 O1 C3 H9 109.511
C2 O1 C3 116.283 C2 C4 H10 110.640
C2 C4 H12 110.149 C2 C4 H13 110.149
C3 C5 H11 110.640 C3 C5 H14 110.149
C3 C5 H15 110.149 C4 C2 H6 110.970
C4 C2 H7 110.970 C5 C3 H8 110.970
C5 C3 H9 110.970 H6 C2 H7 107.991
H8 C3 H9 107.991 H10 C4 H12 108.787
H10 C4 H13 108.787 H11 C5 H14 108.787
H11 C5 H15 108.787 H12 C4 H13 108.273
H14 C5 H15 108.273
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.456      
2 C -0.071      
3 C -0.071      
4 C -0.186      
5 C -0.186      
6 H 0.087      
7 H 0.087      
8 H 0.087      
9 H 0.087      
10 H 0.090      
11 H 0.090      
12 H 0.110      
13 H 0.110      
14 H 0.110      
15 H 0.110      


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 -1.840 1.840
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 5.619 0.000 0.000
y 0.000 7.760 0.000
z 0.000 0.000 6.006


<r2> (average value of r2) Å2
<r2> 149.164
(<r2>)1/2 12.213