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All results from a given calculation for CH3OCH2CN (Methoxyacetonitrile)

using model chemistry: MP2/CEP-31G

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 MP2/CEP-31G
 hartrees
Energy at 0K-45.047017
Energy at 298.15K-45.052292
HF Energy-44.579286
Nuclear repulsion energy82.323384
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/CEP-31G
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 3090 32.86      
2 A' 3028 2926 54.85      
3 A' 3018 2916 67.17      
4 A' 2038 1970 17.62      
5 A' 1535 1483 3.82      
6 A' 1525 1473 4.99      
7 A' 1482 1432 0.28      
8 A' 1414 1366 31.27      
9 A' 1189 1149 14.72      
10 A' 1068 1032 108.31      
11 A' 933 902 1.86      
12 A' 882 853 28.13      
13 A' 498 481 0.28      
14 A' 345 334 1.92      
15 A' 161 156 0.85      
16 A" 3116 3011 69.27      
17 A" 3097 2992 56.48      
18 A" 1511 1460 9.12      
19 A" 1231 1190 0.43      
20 A" 1145 1106 3.34      
21 A" 1041 1006 4.10      
22 A" 320 310 0.03      
23 A" 200 193 6.79      
24 A" 76 74 1.45      

Unscaled Zero Point Vibrational Energy (zpe) 17025.5 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 16451.8 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/CEP-31G
ABC
0.88801 0.07631 0.07228

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.222 -0.407 0.000
O2 -0.749 -0.634 0.000
C3 0.000 0.647 0.000
C4 1.472 0.311 0.000
N5 2.672 0.057 0.000
H6 -2.661 -1.419 0.000
H7 -2.532 0.149 0.911
H8 -2.532 0.149 -0.911
H9 -0.244 1.243 -0.908
H10 -0.244 1.243 0.908

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.48992.45923.76304.91541.10251.11201.11202.73092.7309
O21.48991.48362.41373.48982.06682.14982.14982.14492.1449
C32.45921.48361.51002.73613.36852.73632.73631.11321.1132
C43.76302.41371.51001.22624.48044.10944.10942.15382.1538
N54.91543.48982.73611.22625.53315.28355.28353.27633.2763
H61.10252.06683.36854.48045.53311.81811.81813.70783.7078
H71.11202.14982.73634.10945.28351.81811.82233.12052.5354
H81.11202.14982.73634.10945.28351.81811.82232.53543.1205
H92.73092.14491.11322.15383.27633.70783.12052.53541.8159
H102.73092.14491.11322.15383.27633.70782.53543.12051.8159

picture of Methoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 111.589 O2 C1 H6 104.748
O2 C1 H7 110.592 O2 C1 H8 110.592
O2 C3 C4 107.468 O2 C3 H9 110.566
O2 C3 H10 110.566 C3 C4 N5 179.097
C4 C3 H9 109.453 C4 C3 H10 109.453
H6 C1 H7 110.377 H6 C1 H8 110.377
H7 C1 H8 110.050 H9 C3 H10 109.305
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP2/CEP-31G
 hartrees
Energy at 0K-45.049907
Energy at 298.15K-45.055329
HF Energy-44.581602
Nuclear repulsion energy83.784522
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/CEP-31G
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 3091 35.11      
2 A 3175 3068 12.50      
3 A 3125 3020 67.68      
4 A 3055 2952 51.84      
5 A 3022 2920 57.08      
6 A 2015 1947 19.19      
7 A 1528 1477 11.40      
8 A 1515 1464 8.26      
9 A 1509 1458 3.25      
10 A 1485 1435 0.49      
11 A 1390 1343 13.25      
12 A 1283 1240 2.26      
13 A 1186 1146 9.78      
14 A 1151 1113 3.03      
15 A 1086 1050 85.19      
16 A 1023 989 23.26      
17 A 885 855 34.57      
18 A 834 806 18.14      
19 A 556 538 2.91      
20 A 361 349 5.26      
21 A 316 305 1.55      
22 A 237 229 12.97      
23 A 168 163 4.24      
24 A 106 102 11.47      

Unscaled Zero Point Vibrational Energy (zpe) 17104.6 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 16528.2 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 MP2/CEP-31G
ABC
0.36181 0.10535 0.08804

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.615 -0.827 0.145
O2 1.133 0.456 -0.444
C3 -0.076 0.989 0.219
C4 -1.283 0.074 0.041
N5 -2.238 -0.682 -0.104
H6 2.564 -1.035 -0.376
H7 0.885 -1.643 -0.041
H8 1.787 -0.710 1.237
H9 -0.269 1.961 -0.269
H10 0.104 1.132 1.306

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.49192.48223.03603.86351.10291.11001.11233.38962.7330
O21.49191.47832.49343.57452.06842.15182.14832.06382.1401
C32.48221.47831.52402.75103.37982.81352.71931.10431.1119
C43.03602.49341.52401.22724.02542.76673.38672.16412.1549
N53.86353.57452.75101.22724.82313.26844.24283.30033.2811
H61.10292.06843.37984.02544.82311.81671.82004.12483.6852
H71.11002.15182.81352.76673.26841.81671.82163.79073.1822
H81.11232.14832.71933.38674.24281.82001.82163.69122.4960
H93.38962.06381.10432.16413.30034.12483.79073.69121.8180
H102.73302.14011.11192.15493.28113.68523.18222.49601.8180

picture of Methoxyacetonitrile state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 113.372 O2 C1 H6 104.719
O2 C1 H7 110.732 O2 C1 H8 110.317
O2 C3 C4 112.288 O2 C3 H9 105.164
O2 C3 H10 110.634 C3 C4 N5 178.800
C4 C3 H9 109.817 C4 C3 H10 108.673
H6 C1 H7 110.357 H6 C1 H8 110.495
H7 C1 H8 110.111 H9 C3 H10 110.234
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability