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All results from a given calculation for CH3OCH2CN (Methoxyacetonitrile)

using model chemistry: QCISD/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 QCISD/cc-pVDZ
 hartrees
Energy at 0K-246.592777
Energy at 298.15K-246.598339
HF Energy-245.807243
Nuclear repulsion energy156.220588
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 QCISD/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' 3177 3048 19.29      
2 A' 3022 2899 45.84      
3 A' 3013 2890 30.24      
4 A' 2335 2240 1.98      
5 A' 1521 1459 2.15      
6 A' 1501 1440 7.52      
7 A' 1481 1421 0.34      
8 A' 1422 1364 58.00      
9 A' 1244 1194 85.17      
10 A' 1187 1139 94.03      
11 A' 1025 984 31.79      
12 A' 958 919 7.82      
13 A' 541 519 0.88      
14 A' 383 367 1.69      
15 A' 178 171 2.07      
16 A" 3078 2953 47.76      
17 A" 3058 2934 41.52      
18 A" 1487 1427 6.57      
19 A" 1266 1215 3.99      
20 A" 1186 1138 5.10      
21 A" 1040 998 2.93      
22 A" 362 347 1.45      
23 A" 228 219 4.09      
24 A" 86 83 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 17389.2 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 16683.2 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 QCISD/cc-pVDZ
ABC
0.97033 0.08154 0.07747

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.139 -0.318 0.000
O2 -0.749 -0.597 0.000
C3 0.000 0.592 0.000
C4 1.443 0.244 0.000
N5 2.589 0.002 0.000
H6 -2.661 -1.286 0.000
H7 -2.438 0.258 0.901
H8 -2.438 0.258 -0.901
H9 -0.209 1.214 -0.896
H10 -0.209 1.214 0.896

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.41742.32423.62544.73821.10071.11011.11012.62192.6219
O21.41741.40612.34813.39132.03222.09632.09632.09222.0922
C32.32421.40611.48462.65533.25752.62052.62051.11061.1106
C43.62542.34811.48461.17104.38013.98413.98412.11482.1148
N54.73823.39132.65531.17105.40565.11315.11313.17773.1777
H61.10072.03223.25754.38015.40561.80151.80153.61533.6153
H71.11012.09632.62053.98415.11311.80151.80223.01922.4258
H81.11012.09632.62053.98415.11311.80151.80222.42583.0192
H92.62192.09221.11062.11483.17773.61533.01922.42581.7928
H102.62192.09221.11062.11483.17773.61532.42583.01921.7928

picture of Methoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 110.807 O2 C1 H6 106.948
O2 C1 H7 111.500 O2 C1 H8 111.500
O2 C3 C4 108.613 O2 C3 H9 111.936
O2 C3 H10 111.936 C3 C4 N5 178.345
C4 C3 H9 108.298 C4 C3 H10 108.298
H6 C1 H7 109.152 H6 C1 H8 109.152
H7 C1 H8 108.537 H9 C3 H10 107.638
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at QCISD/cc-pVDZ
 hartrees
Energy at 0K-246.595325
Energy at 298.15K-246.601006
HF Energy-245.809123
Nuclear repulsion energy158.977711
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 QCISD/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 3179 3050 19.75      
2 A 3151 3023 7.45      
3 A 3097 2972 39.86      
4 A 3041 2917 34.56      
5 A 3025 2902 36.93      
6 A 2319 2224 2.72      
7 A 1511 1450 9.47      
8 A 1492 1432 2.27      
9 A 1487 1427 5.81      
10 A 1475 1415 0.57      
11 A 1401 1344 26.78      
12 A 1323 1269 10.55      
13 A 1238 1187 83.64      
14 A 1191 1142 31.79      
15 A 1180 1132 46.25      
16 A 1040 998 9.21      
17 A 974 935 27.63      
18 A 904 868 20.84      
19 A 594 570 1.60      
20 A 400 383 2.84      
21 A 355 341 0.90      
22 A 258 248 9.51      
23 A 177 170 3.51      
24 A 119 114 7.34      

Unscaled Zero Point Vibrational Energy (zpe) 17464.6 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 16755.5 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 QCISD/cc-pVDZ
ABC
0.39999 0.11091 0.09404

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.567 -0.774 0.137
O2 1.088 0.431 -0.446
C3 -0.045 0.928 0.213
C4 -1.250 0.058 0.036
N5 -2.189 -0.630 -0.097
H6 2.475 -1.055 -0.418
H7 0.823 -1.591 0.057
H8 1.824 -0.627 1.207
H9 -0.267 1.917 -0.217
H10 0.125 1.049 1.303

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.42172.34552.93923.76671.10071.10811.10983.27642.6009
O21.42171.40232.41633.46262.03272.10022.09572.02502.0911
C32.34551.40231.49722.66893.26822.66922.62581.10161.1098
C42.93922.41631.49721.17173.91412.64903.35962.11842.1170
N53.76673.46262.66891.17174.69493.16614.21963.19333.1841
H61.10072.03273.26823.91414.69491.80031.80224.04943.5938
H71.10812.10022.66922.64903.16611.80031.80393.68433.0025
H81.10982.09572.62583.35964.21961.80221.80393.58772.3882
H93.27642.02501.10162.11843.19334.04943.68433.58771.7942
H102.60092.09111.10982.11703.18413.59383.00252.38821.7942

picture of Methoxyacetonitrile state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 112.309 O2 C1 H6 106.696
O2 C1 H7 111.641 O2 C1 H8 111.165
O2 C3 C4 112.845 O2 C3 H9 107.334
O2 C3 H10 112.168 C3 C4 N5 179.514
C4 C3 H9 108.239 C4 C3 H10 107.666
H6 C1 H7 109.190 H6 C1 H8 109.240
H7 C1 H8 108.853 H9 C3 H10 108.448
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability