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All results from a given calculation for CH3OCH2CN (Methoxyacetonitrile)

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS 1A'
1 2 yes C1 1A

Conformer 1 (CS)

Jump to S1C2
Energy calculated at CCSD/6-31G(2df,p)
 hartrees
Energy at 0K-246.713935
Energy at 298.15K-246.719554
HF Energy-245.816389
Nuclear repulsion energy157.400922
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 CCSD/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 A' 3196 3022 14.22      
2 A' 3050 2884 37.76      
3 A' 3043 2877 17.58      
4 A' 2378 2249 1.22      
5 A' 1551 1466 3.72      
6 A' 1532 1449 6.66      
7 A' 1513 1430 0.17      
8 A' 1446 1367 43.30      
9 A' 1264 1195 65.88      
10 A' 1200 1134 102.05      
11 A' 1032 976 28.81      
12 A' 964 911 7.78      
13 A' 550 520 1.74      
14 A' 389 368 2.46      
15 A' 184 174 2.72      
16 A" 3107 2938 36.83      
17 A" 3081 2913 22.94      
18 A" 1523 1440 7.26      
19 A" 1290 1220 3.47      
20 A" 1208 1142 3.19      
21 A" 1057 1000 1.72      
22 A" 377 357 2.68      
23 A" 234 221 3.92      
24 A" 89 84 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 17627.9 cm-1
Scaled (by 0.9455) Zero Point Vibrational Energy (zpe) 16667.2 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 CCSD/6-31G(2df,p)
ABC
0.98771 0.08268 0.07856

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.125 -0.331 0.000
O2 -0.739 -0.599 0.000
C3 0.000 0.589 0.000
C4 1.433 0.251 0.000
N5 2.568 0.022 0.000
H6 -2.634 -1.293 0.000
H7 -2.424 0.235 0.892
H8 -2.424 0.235 -0.892
H9 -0.213 1.202 -0.887
H10 -0.213 1.202 0.887

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.41192.31563.60514.70601.08881.09731.09732.60592.6059
O21.41191.39902.33203.36442.01812.08042.08042.07482.0748
C32.31561.39901.47222.62943.23742.60652.60651.09871.0987
C43.60512.33201.47221.15754.34993.95813.95812.09752.0975
N54.70603.36442.62941.15755.36525.07465.07463.14793.1479
H61.08882.01813.23744.34995.36521.78191.78193.58783.5878
H71.09732.08042.60653.95815.07461.78191.78322.99732.4127
H81.09732.08042.60653.95815.07461.78191.78322.41272.9973
H92.60592.07481.09872.09753.14793.58782.99732.41271.7735
H102.60592.07481.09872.09753.14793.58782.41272.99731.7735

picture of Methoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 110.935 O2 C1 H6 106.902
O2 C1 H7 111.406 O2 C1 H8 111.406
O2 C3 C4 108.596 O2 C3 H9 111.784
O2 C3 H10 111.784 C3 C4 N5 178.090
C4 C3 H9 108.473 C4 C3 H10 108.473
H6 C1 H7 109.193 H6 C1 H8 109.193
H7 C1 H8 108.692 H9 C3 H10 107.631
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CCSD/6-31G(2df,p)
 hartrees
Energy at 0K-246.716511
Energy at 298.15K-246.722250
HF Energy-245.818074
Nuclear repulsion energy160.257049
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 CCSD/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 A 3196 3022 14.59      
2 A 3163 2990 4.30      
3 A 3124 2954 28.39      
4 A 3067 2900 22.10      
5 A 3056 2889 27.65      
6 A 2363 2235 1.79      
7 A 1542 1458 8.45      
8 A 1526 1443 5.78      
9 A 1521 1438 3.26      
10 A 1506 1424 0.87      
11 A 1423 1345 18.85      
12 A 1344 1270 7.78      
13 A 1255 1187 63.20      
14 A 1211 1145 13.86      
15 A 1195 1130 71.03      
16 A 1056 998 6.61      
17 A 980 926 27.15      
18 A 912 863 19.42      
19 A 603 571 1.59      
20 A 405 383 2.49      
21 A 371 351 1.69      
22 A 267 252 10.73      
23 A 183 173 4.22      
24 A 120 113 8.35      

Unscaled Zero Point Vibrational Energy (zpe) 17693.7 cm-1
Scaled (by 0.9455) Zero Point Vibrational Energy (zpe) 16729.4 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 CCSD/6-31G(2df,p)
ABC
0.40230 0.11336 0.09573

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.552 -0.773 0.136
O2 1.080 0.432 -0.440
C3 -0.051 0.928 0.211
C4 -1.239 0.056 0.034
N5 -2.161 -0.632 -0.096
H6 2.447 -1.054 -0.416
H7 0.810 -1.574 0.055
H8 1.808 -0.630 1.194
H9 -0.272 1.905 -0.220
H10 0.117 1.055 1.288

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.41622.33832.91343.72321.08891.09551.09703.25992.5937
O21.41621.39592.39633.42852.01942.08352.07982.01192.0742
C32.33831.39591.48422.64243.25012.65092.61701.09091.0979
C42.91342.39631.48421.15823.87612.61863.33152.10212.1000
N53.72323.42852.64241.15824.63893.12064.17333.16603.1551
H61.08892.01943.25013.87614.63891.78131.78294.02393.5754
H71.09552.08352.65092.61863.12061.78131.78463.65442.9861
H81.09702.07982.61703.33154.17331.78291.78463.57132.3891
H93.25992.01191.09092.10213.16604.02393.65443.57131.7750
H102.59372.07421.09792.10003.15513.57542.98612.38911.7750

picture of Methoxyacetonitrile state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 112.513 O2 C1 H6 106.713
O2 C1 H7 111.464 O2 C1 H8 111.063
O2 C3 C4 112.578 O2 C3 H9 107.370
O2 C3 H10 112.009 C3 C4 N5 179.388
C4 C3 H9 108.470 C4 C3 H10 107.903
H6 C1 H7 109.269 H6 C1 H8 109.307
H7 C1 H8 108.972 H9 C3 H10 108.384
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability