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All results from a given calculation for C4H10O2 (1,1-Dimethoxyethane)

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-305.887607
Energy at 298.15K-305.899203
HF Energy-305.280855
Nuclear repulsion energy260.833821
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 MP2/3-21G
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 3198 3052 11.83      
2 A 3183 3038 26.84      
3 A 3105 2964 47.45      
4 A 3098 2957 55.62      
5 A 3047 2909 39.72      
6 A 2963 2828 62.55      
7 A 1618 1544 0.56      
8 A 1603 1530 5.13      
9 A 1589 1517 11.49      
10 A 1540 1470 0.70      
11 A 1482 1414 17.07      
12 A 1440 1375 34.60      
13 A 1243 1186 3.86      
14 A 1192 1138 5.41      
15 A 1166 1113 22.56      
16 A 1108 1058 23.59      
17 A 1008 962 27.20      
18 A 833 795 9.41      
19 A 511 488 9.01      
20 A 421 402 13.45      
21 A 241 230 3.52      
22 A 192 183 1.29      
23 A 78 74 6.66      
24 A 3183 3038 13.02      
25 A 3173 3029 29.24      
26 A 3099 2958 13.22      
27 A 3046 2908 31.85      
28 A 1618 1545 13.86      
29 A 1593 1520 0.00      
30 A 1589 1516 0.00      
31 A 1544 1473 0.20      
32 A 1426 1362 85.34      
33 A 1206 1151 70.19      
34 A 1189 1135 5.60      
35 A 1178 1125 99.44      
36 A 1051 1003 144.50      
37 A 890 849 2.20      
38 A 456 436 2.26      
39 A 332 317 1.85      
40 A 246 235 0.20      
41 A 213 204 0.02      
42 A 80 76 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 31485.1 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 30052.6 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 MP2/3-21G
ABC
0.21512 0.07053 0.05974

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.464 -0.555 1.140
O2 -0.464 -0.555 -1.140
C3 -0.464 0.263 2.362
C4 -0.464 0.263 -2.362
C5 0.081 0.161 0.000
C6 1.614 0.099 0.000
H7 0.550 0.495 2.714
H8 0.550 0.495 -2.714
H9 -0.977 -0.338 3.114
H10 -0.977 -0.338 -3.114
H11 -1.007 1.207 2.215
H12 -1.007 1.207 -2.215
H13 -0.270 1.211 0.000
H14 1.899 -0.955 0.000
H15 2.024 0.589 -0.888
H16 2.024 0.589 0.888

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O12.28061.47093.59711.45282.45892.14624.12152.05054.29032.13433.82842.11102.65353.40772.7497
O22.28063.59711.47091.45282.45894.12152.14624.29032.05053.82842.13432.11102.65352.74973.4077
C31.47093.59714.72482.42663.15051.09725.18201.09075.53291.09914.70482.55263.55634.10622.9099
C43.59711.47094.72482.42663.15055.18201.09725.53291.09074.70481.09912.55263.55632.90994.1062
C51.45281.45282.42662.42661.53432.77452.77453.32623.32622.68002.68001.10652.13312.17852.1785
C62.45892.45893.15053.15051.53432.94232.94234.07434.07433.60613.60612.18761.09211.09391.0939
H72.14624.12151.09725.18202.77452.94235.42861.78416.08181.78365.21782.92443.36003.89372.3490
H84.12152.14625.18201.09722.77452.94235.42866.08181.78415.21781.78362.92443.36002.34903.8937
H92.05054.29031.09075.53293.32624.07431.78416.08186.22721.78825.54793.54884.28315.08723.8494
H104.29032.05055.53291.09073.32624.07436.08181.78416.22725.54791.78823.54884.28313.84945.0872
H112.13433.82841.09914.70482.68003.60611.78365.21781.78825.54794.42912.33414.24564.38153.3660
H123.82842.13434.70481.09912.68003.60615.21781.78365.54791.78824.42912.33414.24563.36604.3815
H132.11102.11102.55262.55261.10652.18762.92442.92443.54883.54882.33412.33413.06502.53722.5372
H142.65352.65353.55633.55632.13311.09213.36003.36004.28314.28314.24564.24563.06501.78571.7857
H153.40772.74974.10622.90992.17851.09393.89372.34905.08723.84944.38153.36602.53721.78571.7763
H162.74973.40772.90994.10622.17851.09392.34903.89373.84945.08723.36604.38152.53721.78571.7763

picture of 1,1-Dimethoxyethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C3 H7 112.565 O1 C3 H9 105.379
O1 C3 H11 111.475 O1 C5 O2 103.420
O1 C5 C6 110.775 O1 C5 H13 110.411
O2 C4 H8 112.565 O2 C4 H10 105.379
O2 C4 H12 111.475 O2 C5 C6 110.775
O2 C5 H13 110.411 C3 O1 C5 112.184
C4 O2 C5 112.184 C5 C6 H14 107.429
C5 C6 H15 110.863 C5 C6 H16 110.863
C6 C5 H13 110.828 H7 C3 H9 109.260
H7 C3 H11 108.599 H8 C4 H10 109.260
H8 C4 H12 108.599 H9 C3 H11 109.486
H10 C4 H12 109.486 H14 C6 H15 109.549
H14 C6 H16 109.549 H15 C6 H16 108.572
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.498     -0.433
2 O -0.498     -0.433
3 C -0.287     -0.019
4 C -0.287     -0.019
5 C 0.347     0.597
6 C -0.579     -0.495
7 H 0.167     0.054
8 H 0.167     0.054
9 H 0.206     0.106
10 H 0.206     0.106
11 H 0.166     0.044
12 H 0.166     0.044
13 H 0.145     -0.004
14 H 0.219     0.160
15 H 0.181     0.117
16 H 0.181     0.117


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.993 2.816 0.000 2.986
CHELPG        
AIM        
ESP 1.014 2.820 0.000 2.997


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.528 -1.519 0.000
y -1.519 -40.630 0.000
z 0.000 0.000 -31.257
Traceless
 xyz
x -3.584 -1.519 0.000
y -1.519 -5.238 0.000
z 0.000 0.000 8.821
Polar
3z2-r217.643
x2-y21.102
xy-1.519
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.284 -0.032 0.000
y -0.032 5.965 0.000
z 0.000 0.000 8.782


<r2> (average value of r2) Å2
<r2> 206.923
(<r2>)1/2 14.385