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All results from a given calculation for CH3OCH2CN (Methoxyacetonitrile)

using model chemistry: MP2=FULL/3-21G

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=FULL/3-21G
 hartrees
Energy at 0K-244.935975
Energy at 298.15K-244.941602
HF Energy-244.415553
Nuclear repulsion energy153.909063
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/3-21G
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' 3192 3048 16.01      
2 A' 3049 2911 34.12      
3 A' 3044 2906 15.28      
4 A' 2158 2060 14.88      
5 A' 1618 1544 2.43      
6 A' 1605 1533 6.63      
7 A' 1538 1468 2.41      
8 A' 1447 1382 28.52      
9 A' 1212 1157 10.85      
10 A' 1093 1043 92.63      
11 A' 942 899 4.47      
12 A' 909 868 21.19      
13 A' 558 533 0.69      
14 A' 377 360 1.86      
15 A' 181 173 0.75      
16 A" 3102 2962 48.47      
17 A" 3076 2937 30.59      
18 A" 1589 1517 7.61      
19 A" 1295 1237 0.53      
20 A" 1190 1136 2.42      
21 A" 1086 1037 2.18      
22 A" 426 407 0.08      
23 A" 235 225 5.25      
24 A" 92 88 0.91      

Unscaled Zero Point Vibrational Energy (zpe) 17506.1 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 16714.8 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=FULL/3-21G
ABC
0.89834 0.08020 0.07575

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.169 -0.413 0.000
O2 -0.714 -0.644 0.000
C3 0.000 0.639 0.000
C4 1.439 0.325 0.000
N5 2.598 0.072 0.000
H6 -2.618 -1.406 0.000
H7 -2.490 0.139 0.893
H8 -2.490 0.139 -0.893
H9 -0.248 1.236 -0.890
H10 -0.248 1.236 0.890

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.47362.41063.68214.79111.09021.09811.09812.68372.6837
O21.47361.46852.36043.38772.05102.13692.13692.13212.1321
C32.41061.46851.47242.65893.32222.69202.69201.09991.0999
C43.68212.36041.47241.18654.41034.03284.03282.11332.1133
N54.79113.38772.65891.18655.42085.16565.16563.20073.2007
H61.09022.05103.32224.41035.42081.78971.78973.65963.6596
H71.09812.13692.69204.03285.16561.78971.78683.06752.4960
H81.09812.13692.69204.03285.16561.78971.78682.49603.0675
H92.68372.13211.09992.11333.20073.65963.06752.49601.7796
H102.68372.13211.09992.11333.20073.65962.49603.06751.7796

picture of Methoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 110.037 O2 C1 H6 105.277
O2 C1 H7 111.560 O2 C1 H8 111.560
O2 C3 C4 106.754 O2 C3 H9 111.412
O2 C3 H10 111.412 C3 C4 N5 179.989
C4 C3 H9 109.630 C4 C3 H10 109.630
H6 C1 H7 109.747 H6 C1 H8 109.747
H7 C1 H8 108.893 H9 C3 H10 107.993
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP2=FULL/3-21G
 hartrees
Energy at 0K-244.939545
Energy at 298.15K-244.945276
HF Energy-244.418841
Nuclear repulsion energy156.825298
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/3-21G
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 3195 3051 16.81      
2 A 3158 3015 4.95      
3 A 3118 2977 37.85      
4 A 3059 2921 25.81      
5 A 3057 2919 24.75      
6 A 2139 2042 15.58      
7 A 1614 1541 7.89      
8 A 1590 1518 8.46      
9 A 1576 1505 3.23      
10 A 1538 1469 1.30      
11 A 1422 1358 8.75      
12 A 1336 1276 2.37      
13 A 1217 1162 3.81      
14 A 1192 1138 2.16      
15 A 1107 1057 71.14      
16 A 1050 1003 18.79      
17 A 892 852 26.32      
18 A 872 833 13.33      
19 A 599 572 1.87      
20 A 414 396 1.07      
21 A 385 368 3.49      
22 A 264 252 9.91      
23 A 189 181 4.54      
24 A 124 118 9.43      

Unscaled Zero Point Vibrational Energy (zpe) 17553.8 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 16760.3 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/3-21G
ABC
0.37088 0.11114 0.09282

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.567 -0.809 0.148
O2 1.110 0.459 -0.457
C3 -0.083 0.964 0.226
C4 -1.254 0.072 0.046
N5 -2.165 -0.672 -0.113
H6 2.467 -1.083 -0.402
H7 0.813 -1.598 0.043
H8 1.804 -0.679 1.212
H9 -0.287 1.939 -0.224
H10 0.097 1.096 1.303

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.47742.42292.95643.74361.09011.09621.09813.33542.6687
O21.47741.46452.44783.48232.05492.13792.13592.04842.1284
C32.42291.46451.48342.67033.32972.72042.68901.09281.0997
C42.95642.44781.48341.18743.92182.65693.35742.12032.1101
N53.74363.48232.67031.18744.65983.12274.18493.21893.2016
H61.09012.05493.32973.92184.65981.78921.79074.09243.6428
H71.09622.13792.72042.65693.12271.78921.78723.71373.0588
H81.09812.13592.68903.35744.18491.79071.78723.64482.4639
H93.33542.04841.09282.12033.21894.09243.71373.64481.7858
H102.66872.12841.09972.11013.20163.64283.05882.46391.7858

picture of Methoxyacetonitrile state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 110.892 O2 C1 H6 105.331
O2 C1 H7 111.487 O2 C1 H8 111.208
O2 C3 C4 112.268 O2 C3 H9 105.526
O2 C3 H10 111.414 C3 C4 N5 177.960
C4 C3 H9 109.853 C4 C3 H10 108.639
H6 C1 H7 109.843 H6 C1 H8 109.848
H7 C1 H8 109.069 H9 C3 H10 109.072
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability