return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3OCH2CN (Methoxyacetonitrile)

using model chemistry: CCD/cc-pVDZ

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 CCD/cc-pVDZ
 hartrees
Energy at 0K-246.584250
Energy at 298.15K-246.589827
HF Energy-245.808097
Nuclear repulsion energy156.439643
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 CCD/cc-pVDZ
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' 3186 3048 18.69      
2 A' 3033 2902 42.85      
3 A' 3025 2894 27.16      
4 A' 2372 2269 2.45      
5 A' 1524 1458 2.54      
6 A' 1504 1439 7.12      
7 A' 1487 1422 0.18      
8 A' 1430 1368 57.40      
9 A' 1254 1200 95.25      
10 A' 1198 1146 79.61      
11 A' 1037 992 31.21      
12 A' 966 925 8.17      
13 A' 546 522 0.92      
14 A' 385 369 1.78      
15 A' 180 172 2.07      
16 A" 3093 2959 46.91      
17 A" 3072 2939 36.21      
18 A" 1492 1427 6.74      
19 A" 1274 1218 3.86      
20 A" 1191 1139 5.09      
21 A" 1044 999 3.04      
22 A" 364 349 1.45      
23 A" 227 217 4.20      
24 A" 86 82 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 17483.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 16726.6 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 CCD/cc-pVDZ
ABC
0.97346 0.08174 0.07767

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.136 -0.321 0.000
O2 -0.748 -0.597 0.000
C3 0.000 0.592 0.000
C4 1.442 0.246 0.000
N5 2.584 0.006 0.000
H6 -2.656 -1.291 0.000
H7 -2.437 0.252 0.901
H8 -2.437 0.252 -0.901
H9 -0.209 1.212 -0.896
H10 -0.209 1.212 0.896

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.41482.32253.62244.73131.10031.10941.10942.62012.6201
O21.41481.40422.34663.38632.03052.09392.09392.08952.0895
C32.32251.40421.48312.65003.25552.62002.62001.10991.1099
C43.62242.34661.48311.16724.37693.98213.98212.11302.1130
N54.73133.38632.65001.16725.39855.10735.10733.17243.1724
H61.10032.03053.25554.37695.39851.79991.79993.61313.6131
H71.10942.09392.62003.98215.10731.79991.80143.01852.4256
H81.10942.09392.62003.98215.10731.79991.80142.42563.0185
H92.62012.08951.10992.11303.17243.61313.01852.42561.7918
H102.62012.08951.10992.11303.17243.61312.42563.01851.7918

picture of Methoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 110.948 O2 C1 H6 107.003
O2 C1 H7 111.530 O2 C1 H8 111.530
O2 C3 C4 108.698 O2 C3 H9 111.896
O2 C3 H10 111.896 C3 C4 N5 178.388
C4 C3 H9 108.292 C4 C3 H10 108.292
H6 C1 H7 109.081 H6 C1 H8 109.081
H7 C1 H8 108.560 H9 C3 H10 107.645
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CCD/cc-pVDZ
 hartrees
Energy at 0K-246.586695
Energy at 298.15K-246.592395
HF Energy-245.809976
Nuclear repulsion energy159.208647
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 CCD/cc-pVDZ
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 3188 3050 19.19      
2 A 3158 3022 7.12      
3 A 3111 2976 38.34      
4 A 3053 2921 31.30      
5 A 3036 2905 34.64      
6 A 2357 2255 3.24      
7 A 1515 1449 9.43      
8 A 1497 1432 1.68      
9 A 1493 1428 6.67      
10 A 1479 1415 0.71      
11 A 1408 1347 26.55      
12 A 1329 1271 11.66      
13 A 1248 1194 95.69      
14 A 1198 1146 40.04      
15 A 1188 1136 21.85      
16 A 1045 1000 10.42      
17 A 985 942 26.19      
18 A 915 875 20.25      
19 A 600 574 1.67      
20 A 402 385 2.98      
21 A 358 342 0.88      
22 A 259 248 9.91      
23 A 177 169 3.43      
24 A 118 113 7.39      

Unscaled Zero Point Vibrational Energy (zpe) 17557.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 16796.9 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 CCD/cc-pVDZ
ABC
0.40170 0.11114 0.09426

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.568 -0.771 0.137
O2 1.086 0.430 -0.445
C3 -0.047 0.926 0.213
C4 -1.249 0.056 0.035
N5 -2.186 -0.629 -0.096
H6 2.475 -1.051 -0.419
H7 0.826 -1.590 0.057
H8 1.826 -0.624 1.205
H9 -0.270 1.915 -0.218
H10 0.123 1.050 1.302

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.41892.34322.93753.76341.10031.10751.10913.27342.5996
O21.41891.40052.41353.45692.03072.09772.09332.02332.0885
C32.34321.40051.49502.66293.26582.66752.62561.10141.1091
C42.93752.41351.49501.16803.91182.64903.35982.11642.1156
N53.76343.45692.66291.16804.69103.16534.21793.18733.1792
H61.10032.03073.26583.91184.69101.79881.80064.04603.5923
H71.10752.09772.66752.64903.16531.79881.80313.68243.0018
H81.10912.09332.62563.35984.21791.80061.80313.58642.3894
H93.27342.02331.10142.11643.18734.04603.68243.58641.7922
H102.59962.08851.10912.11563.17923.59233.00182.38941.7922

picture of Methoxyacetonitrile state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 112.429 O2 C1 H6 106.746
O2 C1 H7 111.675 O2 C1 H8 111.212
O2 C3 C4 112.889 O2 C3 H9 107.342
O2 C3 H10 112.134 C3 C4 N5 179.550
C4 C3 H9 108.247 C4 C3 H10 107.742
H6 C1 H7 109.121 H6 C1 H8 109.163
H7 C1 H8 108.862 H9 C3 H10 108.340
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability