return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3OCH2CN (Methoxyacetonitrile)

using model chemistry: CCSD=FULL/aug-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 CCSD=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-246.651665
Energy at 298.15K-246.657202
HF Energy-245.822447
Nuclear repulsion energy155.953246
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 CCSD=FULL/aug-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' 3167 3167 16.76      
2 A' 3020 3020 37.21      
3 A' 3011 3011 36.65      
4 A' 2332 2332 1.59      
5 A' 1506 1506 4.65      
6 A' 1492 1492 4.41      
7 A' 1471 1471 0.05      
8 A' 1410 1410 43.53      
9 A' 1232 1232 57.82      
10 A' 1164 1164 118.92      
11 A' 1005 1005 28.43      
12 A' 955 955 8.37      
13 A' 537 537 1.50      
14 A' 381 381 1.96      
15 A' 179 179 2.68      
16 A" 3076 3076 36.73      
17 A" 3058 3058 25.69      
18 A" 1486 1486 7.03      
19 A" 1263 1263 2.95      
20 A" 1177 1177 4.06      
21 A" 1033 1033 2.13      
22 A" 358 358 2.11      
23 A" 220 220 3.71      
24 A" 85 85 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 17308.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17308.2 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 CCSD=FULL/aug-cc-pVDZ
ABC
0.97420 0.08108 0.07708

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.146 -0.334 0.000
O2 -0.746 -0.610 0.000
C3 0.000 0.590 0.000
C4 1.445 0.257 0.000
N5 2.593 0.032 0.000
H6 -2.660 -1.305 0.000
H7 -2.438 0.237 0.902
H8 -2.438 0.237 -0.902
H9 -0.219 1.202 -0.897
H10 -0.219 1.202 0.897

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.42682.33703.64014.75331.09791.10651.10652.62312.6231
O21.42681.41332.35703.40042.03582.09552.09552.08942.0894
C32.33701.41331.48322.65233.26602.62312.62311.10721.1072
C43.64012.35701.48321.16944.39243.98653.98652.11312.1131
N54.75333.40042.65231.16945.42035.11505.11503.17443.1744
H61.09792.03583.26604.39245.42031.79981.79983.61223.6122
H71.10652.09552.62313.98655.11501.79981.80313.01502.4200
H81.10652.09552.62313.98655.11501.79981.80312.42003.0150
H92.62312.08941.10722.11313.17443.61223.01502.42001.7934
H102.62312.08941.10722.11313.17443.61222.42003.01501.7934

picture of Methoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 110.745 O2 C1 H6 106.762
O2 C1 H7 110.993 O2 C1 H8 110.993
O2 C3 C4 108.901 O2 C3 H9 111.400
O2 C3 H10 111.400 C3 C4 N5 178.120
C4 C3 H9 108.446 C4 C3 H10 108.446
H6 C1 H7 109.460 H6 C1 H8 109.460
H7 C1 H8 109.131 H9 C3 H10 108.159
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CCSD=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-246.653862
Energy at 298.15K-246.659517
HF Energy-245.823957
Nuclear repulsion energy158.880152
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 CCSD=FULL/aug-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 3170 3170 17.52      
2 A 3143 3143 4.91      
3 A 3093 3093 30.78      
4 A 3038 3038 27.13      
5 A 3022 3022 36.30      
6 A 2317 2317 2.18      
7 A 1501 1501 8.52      
8 A 1489 1489 6.83      
9 A 1480 1480 1.88      
10 A 1468 1468 0.94      
11 A 1387 1387 20.26      
12 A 1313 1313 7.13      
13 A 1224 1224 54.49      
14 A 1180 1180 11.42      
15 A 1161 1161 85.52      
16 A 1031 1031 7.80      
17 A 953 953 31.23      
18 A 902 902 16.90      
19 A 592 592 1.53      
20 A 394 394 2.90      
21 A 352 352 1.06      
22 A 255 255 10.95      
23 A 176 176 3.84      
24 A 114 114 8.35      

Unscaled Zero Point Vibrational Energy (zpe) 17376.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17376.9 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 CCSD=FULL/aug-cc-pVDZ
ABC
0.39348 0.11185 0.09421

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/aug-cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.556 -0.788 0.137
O2 1.096 0.438 -0.439
C3 -0.050 0.939 0.212
C4 -1.246 0.060 0.033
N5 -2.177 -0.637 -0.097
H6 2.469 -1.063 -0.407
H7 0.804 -1.589 0.025
H8 1.791 -0.652 1.209
H9 -0.270 1.922 -0.229
H10 0.119 1.065 1.298

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.43062.35992.92973.74421.09781.10461.10613.28852.6168
O21.43061.40982.41893.46222.03502.09972.09452.02792.0891
C32.35991.40981.49562.66563.27722.67512.62981.09931.1065
C42.92972.41891.49561.17013.90632.63083.33382.11902.1155
N53.74423.46222.66561.17014.67663.13224.17803.19423.1807
H61.09782.03503.27723.90634.67661.79891.80034.05573.6001
H71.10462.09972.67512.63083.13221.79891.80433.68043.0223
H81.10612.09452.62983.33384.17801.80031.80433.59742.3982
H93.28852.02791.09932.11903.19424.05573.68043.59741.7938
H102.61682.08911.10652.11553.18073.60013.02232.39821.7938

picture of Methoxyacetonitrile state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 112.370 O2 C1 H6 106.454
O2 C1 H7 111.182 O2 C1 H8 110.669
O2 C3 C4 112.689 O2 C3 H9 107.194
O2 C3 H10 111.674 C3 C4 N5 179.331
C4 C3 H9 108.524 C4 C3 H10 107.847
H6 C1 H7 109.526 H6 C1 H8 109.551
H7 C1 H8 109.406 H9 C3 H10 108.816
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability