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All results from a given calculation for CH3OCH2CN (Methoxyacetonitrile)

using model chemistry: QCISD(T)/6-311G*

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(T)/6-311G*
 hartrees
Energy at 0K-246.665811
Energy at 298.15K-246.671346
HF Energy-245.842969
Nuclear repulsion energy156.570554
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(T)/6-311G*
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' 3143 3026        
2 A' 2988 2877        
3 A' 2981 2870        
4 A' 2288 2202        
5 A' 1542 1485        
6 A' 1523 1467        
7 A' 1499 1443        
8 A' 1431 1378        
9 A' 1243 1196        
10 A' 1169 1126        
11 A' 1010 972        
12 A' 952 917        
13 A' 539 519        
14 A' 385 370        
15 A' 178 171        
16 A" 3042 2929        
17 A" 3018 2906        
18 A" 1510 1454        
19 A" 1278 1231        
20 A" 1193 1149        
21 A" 1042 1003        
22 A" 357 344        
23 A" 228 220        
24 A" 82 79        

Unscaled Zero Point Vibrational Energy (zpe) 17310.0 cm-1
Scaled (by 0.9628) Zero Point Vibrational Energy (zpe) 16666.1 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 QCISD(T)/6-311G*
ABC
0.97280 0.08193 0.07782

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.136 -0.324 0.000
O2 -0.744 -0.604 0.000
C3 0.000 0.592 0.000
C4 1.439 0.254 0.000
N5 2.581 0.014 0.000
H6 -2.647 -1.290 0.000
H7 -2.429 0.245 0.897
H8 -2.429 0.245 -0.897
H9 -0.215 1.205 -0.893
H10 -0.215 1.205 0.893

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.42032.32393.62124.72851.09261.10211.10212.61222.6122
O21.42031.40832.34523.38102.02272.08962.08962.08542.0854
C32.32391.40831.47792.64463.24732.61242.61241.10401.1040
C43.62122.34521.47791.16684.36753.97043.97042.10612.1061
N54.72853.38102.64461.16685.38725.09445.09443.16713.1671
H61.09262.02273.24734.36755.38721.79101.79103.59623.5962
H71.10212.08962.61243.97045.09441.79101.79493.00462.4130
H81.10212.08962.61243.97045.09441.79101.79492.41303.0046
H92.61222.08541.10402.10613.16713.59623.00462.41301.7855
H102.61222.08541.10402.10613.16713.59622.41303.00461.7855

picture of Methoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 110.482 O2 C1 H6 106.480
O2 C1 H7 111.249 O2 C1 H8 111.249
O2 C3 C4 108.666 O2 C3 H9 111.636
O2 C3 H10 111.636 C3 C4 N5 178.704
C4 C3 H9 108.442 C4 C3 H10 108.442
H6 C1 H7 109.387 H6 C1 H8 109.387
H7 C1 H8 109.039 H9 C3 H10 107.923
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at QCISD(T)/6-311G*
 hartrees
Energy at 0K-246.668658
Energy at 298.15K-246.674330
HF Energy-245.844656
Nuclear repulsion energy159.492735
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(T)/6-311G*
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 3142 3025        
2 A 3114 2998        
3 A 3059 2945        
4 A 3004 2892        
5 A 2992 2880        
6 A 2270 2185        
7 A 1532 1475        
8 A 1515 1459        
9 A 1511 1455        
10 A 1497 1441        
11 A 1402 1350        
12 A 1328 1278        
13 A 1233 1187        
14 A 1196 1151        
15 A 1168 1125        
16 A 1042 1003        
17 A 957 922        
18 A 896 863        
19 A 594 572        
20 A 404 389        
21 A 350 337        
22 A 261 251        
23 A 178 171        
24 A 120 115        

Unscaled Zero Point Vibrational Energy (zpe) 17382.3 cm-1
Scaled (by 0.9628) Zero Point Vibrational Energy (zpe) 16735.6 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 QCISD(T)/6-311G*
ABC
0.39510 0.11296 0.09514

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.546 -0.785 0.139
O2 1.090 0.432 -0.443
C3 -0.046 0.937 0.212
C4 -1.243 0.065 0.037
N5 -2.166 -0.636 -0.099
H6 2.463 -1.054 -0.392
H7 0.805 -1.589 0.021
H8 1.767 -0.650 1.210
H9 -0.260 1.918 -0.225
H10 0.128 1.065 1.294

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.42432.34622.91693.72271.09271.10011.10203.27112.6014
O21.42431.40462.40923.44392.02422.09382.08822.01882.0838
C32.34621.40461.49092.65843.25912.67272.60761.09521.1034
C42.91692.40921.49091.16763.89422.63243.30812.11362.1110
N53.72273.44392.65841.16764.65693.12264.14523.18953.1770
H61.09272.02423.25913.89424.65691.79021.79234.03403.5753
H71.10012.09382.67272.63243.12261.79021.79533.67373.0206
H81.10202.08822.60763.30814.14521.79231.79533.57222.3734
H93.27112.01881.09522.11363.18954.03403.67373.57221.7853
H102.60142.08381.10342.11103.17703.57533.02062.37341.7853

picture of Methoxyacetonitrile state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 112.070 O2 C1 H6 106.322
O2 C1 H7 111.434 O2 C1 H8 110.858
O2 C3 C4 112.588 O2 C3 H9 107.078
O2 C3 H10 111.816 C3 C4 N5 178.881
C4 C3 H9 108.669 C4 C3 H10 107.990
H6 C1 H7 109.453 H6 C1 H8 109.493
H7 C1 H8 109.226 H9 C3 H10 108.594
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability