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All results from a given calculation for C3H8O2 (Methane, dimethoxy-)

using model chemistry: MP2=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2=FULL/6-311G*
 hartrees
Energy at 0K-268.908367
Energy at 298.15K-268.918070
Nuclear repulsion energy199.426596
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=FULL/6-311G*
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 3206 3036 3.44      
2 A 3143 2976 65.80      
3 A 3064 2902 60.54      
4 A 3055 2893 18.63      
5 A 1563 1480 5.73      
6 A 1546 1464 0.18      
7 A 1528 1447 6.23      
8 A 1508 1428 0.08      
9 A 1370 1297 0.93      
10 A 1243 1177 40.96      
11 A 1207 1143 13.53      
12 A 1174 1112 74.25      
13 A 964 913 4.05      
14 A 624 591 5.97      
15 A 331 314 6.00      
16 A 167 158 0.95      
17 A 89 84 1.62      
18 B 3205 3036 43.36      
19 B 3142 2976 8.36      
20 B 3131 2965 49.73      
21 B 3056 2894 93.83      
22 B 1554 1472 9.26      
23 B 1531 1450 0.35      
24 B 1522 1442 13.49      
25 B 1457 1380 14.69      
26 B 1279 1211 15.51      
27 B 1205 1142 12.50      
28 B 1198 1135 192.64      
29 B 1108 1049 122.68      
30 B 985 933 65.92      
31 B 476 451 5.39      
32 B 245 232 19.71      
33 B 119 113 2.38      

Unscaled Zero Point Vibrational Energy (zpe) 25495.6 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 24146.9 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 MP2=FULL/6-311G*
ABC
0.33868 0.11167 0.10473

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.933
H2 -0.707 0.559 1.557
H3 0.707 -0.559 1.557
O4 0.789 0.866 0.170
O5 -0.789 -0.866 0.170
C6 0.000 1.782 -0.571
C7 0.000 -1.782 -0.571
H8 0.692 2.449 -1.081
H9 -0.692 -2.449 -1.081
H10 -0.627 1.270 -1.306
H11 -0.644 2.368 0.095
H12 0.627 -1.270 -1.306
H13 0.644 -2.368 0.095

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5 C6 C7 H8 H9 H10 H11 H12 H13
C11.09631.09631.39821.39822.33212.33213.24583.24582.64952.59312.64952.5931
H21.09631.80322.06321.99042.55433.24213.53404.00132.95082.32623.65003.5401
H31.09631.80321.99042.06323.24212.55434.00133.53403.65003.54012.95082.3262
O41.39822.06321.99042.34301.41832.86032.02033.84042.08502.07782.60123.2376
O51.39821.99042.06322.34302.86031.41833.84042.02032.60123.23762.08502.0778
C62.33212.55433.24211.41832.86033.56321.08844.31711.09261.09693.20084.2517
C72.33213.24212.55432.86031.41833.56324.31711.08843.20084.25171.09261.0969
H83.24583.53404.00132.02033.84041.08844.31715.09011.78361.78253.72654.9586
H93.24584.00133.53403.84042.02034.31711.08845.09013.72654.95861.78361.7825
H102.64952.95083.65002.08502.60121.09263.20081.78363.72651.77992.83284.1004
H112.59312.32623.54012.07783.23761.09694.25171.78254.95861.77994.10044.9078
H122.64953.65002.95082.60122.08503.20081.09263.72651.78362.83284.10041.7799
H132.59313.54012.32623.23762.07784.25171.09694.95861.78254.10044.90781.7799

picture of Methane, dimethoxy- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 C6 111.783 C1 O5 C7 111.783
H2 C1 H3 110.652 H2 C1 O4 111.019
H2 C1 O5 105.214 H3 C1 O4 105.214
H3 C1 O5 111.019 O4 C1 O5 113.830
O4 C6 H8 106.661 O4 C6 H10 111.615
O4 C6 H11 110.744 O5 C7 H9 106.661
O5 C7 H12 111.615 O5 C7 H13 110.744
H8 C6 H10 109.722 H8 C6 H11 109.305
H9 C7 H12 109.722 H9 C7 H13 109.305
H10 C6 H11 108.758 H12 C7 H13 108.758
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability