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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-45.394166
Energy at 298.15K-45.399648
HF Energy-44.706550
Nuclear repulsion energy84.277289
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' 3220 3057 23.97      
2 A' 3061 2906 55.57      
3 A' 3057 2902 45.49      
4 A' 2183 2072 8.06      
5 A' 1538 1460 3.88      
6 A' 1522 1445 5.31      
7 A' 1500 1424 0.46      
8 A' 1427 1355 45.81      
9 A' 1236 1173 42.94      
10 A' 1160 1101 128.59      
11 A' 997 946 36.06      
12 A' 954 906 8.08      
13 A' 522 496 0.54      
14 A' 376 357 1.49      
15 A' 171 163 1.46      
16 A" 3142 2983 47.52      
17 A" 3120 2962 41.75      
18 A" 1516 1440 8.49      
19 A" 1274 1210 1.26      
20 A" 1190 1130 2.67      
21 A" 1042 989 3.68      
22 A" 341 324 0.48      
23 A" 234 222 4.65      
24 A" 89 85 0.23      

Unscaled Zero Point Vibrational Energy (zpe) 17435.4 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 16553.1 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
0.95080 0.07994 0.07592

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 -2.164 -0.290 0.000
O2 -0.762 -0.606 0.000
C3 0.000 0.598 0.000
C4 1.451 0.235 0.000
N5 2.622 -0.022 0.000
H6 -2.690 -1.255 0.000
H7 -2.441 0.288 0.904
H8 -2.441 0.288 -0.904
H9 -0.206 1.211 -0.901
H10 -0.206 1.211 0.901

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.43752.33923.65264.79391.09901.10791.10792.62652.6265
O21.43751.42462.36683.43402.03452.10582.10582.10252.1025
C32.33921.42461.49522.69483.26642.62122.62121.10911.1091
C43.65262.36681.49521.19994.40053.99523.99522.12302.1230
N54.79393.43402.69481.19995.45345.15255.15253.21433.2143
H61.09902.03453.26644.40055.45341.80531.80533.61413.6141
H71.10792.10582.62123.99525.15251.80531.80833.01772.4179
H81.10792.10582.62123.99525.15251.80531.80832.41793.0177
H92.62652.10251.10912.12303.21433.61413.01772.41791.8029
H102.62652.10251.10912.12303.21433.61412.41793.01771.8029

picture of Methoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 109.631 O2 C1 H6 105.893
O2 C1 H7 110.980 O2 C1 H8 110.980
O2 C3 C4 108.282 O2 C3 H9 111.556
O2 C3 H10 111.556 C3 C4 N5 178.367
C4 C3 H9 108.300 C4 C3 H10 108.300
H6 C1 H7 109.773 H6 C1 H8 109.773
H7 C1 H8 109.388 H9 C3 H10 108.741
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-45.397114
Energy at 298.15K-45.402725
HF Energy-44.708465
Nuclear repulsion energy85.866250
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 3220 3058 25.24      
2 A 3194 3033 7.27      
3 A 3153 2994 45.30      
4 A 3085 2929 39.83      
5 A 3063 2908 48.95      
6 A 2164 2054 8.59      
7 A 1532 1454 11.56      
8 A 1520 1443 6.87      
9 A 1512 1435 1.84      
10 A 1500 1424 0.79      
11 A 1406 1335 23.79      
12 A 1324 1257 3.93      
13 A 1227 1165 40.71      
14 A 1192 1132 6.13      
15 A 1165 1106 110.20      
16 A 1044 991 9.22      
17 A 947 899 37.17      
18 A 898 852 20.64      
19 A 584 554 1.95      
20 A 397 377 3.92      
21 A 335 318 1.19      
22 A 261 248 8.73      
23 A 179 169 4.54      
24 A 116 110 9.03      

Unscaled Zero Point Vibrational Energy (zpe) 17508.2 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 16622.3 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/CEP-31G*
ABC
0.38327 0.11093 0.09312

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 1.544 -0.808 0.141
O2 1.112 0.434 -0.445
C3 -0.034 0.955 0.215
C4 -1.245 0.078 0.038
N5 -2.198 -0.639 -0.101
H6 2.469 -1.082 -0.387
H7 0.785 -1.601 0.001
H8 1.751 -0.680 1.222
H9 -0.243 1.937 -0.237
H10 0.139 1.077 1.302

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.44022.36722.92843.75281.09951.10591.10803.29722.6219
O21.44021.42062.43253.49612.03542.10872.10412.03372.0999
C32.36721.42061.50652.70673.28212.69242.62141.10091.1075
C42.92842.43251.50651.20033.91412.63493.30982.13012.1244
N53.75283.49612.70671.20034.69583.13534.16463.23703.2213
H61.09952.03543.28213.91414.69581.80381.80674.06043.5969
H71.10592.10872.69242.63493.13531.80381.80913.69173.0464
H81.10802.10412.62143.30984.16461.80671.80913.59882.3854
H93.29722.03371.10092.13013.23704.06043.69173.59881.8040
H102.62192.09991.10752.12443.22133.59693.04642.38541.8040

picture of Methoxyacetonitrile state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 111.671 O2 C1 H6 105.752
O2 C1 H7 111.156 O2 C1 H8 110.650
O2 C3 C4 112.371 O2 C3 H9 106.835
O2 C3 H10 111.728 C3 C4 N5 178.901
C4 C3 H9 108.558 C4 C3 H10 107.741
H6 C1 H7 109.755 H6 C1 H8 109.852
H7 C1 H8 109.610 H9 C3 H10 109.550
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability