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/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/cc-pVDZ
 hartrees
Energy at 0K-246.601798
Energy at 298.15K-246.607371
HF Energy-245.807824
Nuclear repulsion energy156.404884
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/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' 3185 3185 18.84      
2 A' 3031 3031 43.79      
3 A' 3022 3022 29.70      
4 A' 2353 2353 2.36      
5 A' 1524 1524 2.35      
6 A' 1504 1504 7.43      
7 A' 1485 1485 0.24      
8 A' 1426 1426 57.44      
9 A' 1249 1249 88.16      
10 A' 1192 1192 89.03      
11 A' 1030 1030 31.73      
12 A' 963 963 7.99      
13 A' 543 543 0.88      
14 A' 384 384 1.72      
15 A' 179 179 2.05      
16 A" 3088 3088 46.91      
17 A" 3068 3068 39.48      
18 A" 1491 1491 6.71      
19 A" 1271 1271 3.92      
20 A" 1189 1189 5.03      
21 A" 1043 1043 2.94      
22 A" 364 364 1.44      
23 A" 228 228 4.13      
24 A" 87 87 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 17448.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17448.3 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 CCSD=FULL/cc-pVDZ
ABC
0.97307 0.08172 0.07764

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.136 -0.320 0.000
O2 -0.748 -0.597 0.000
C3 0.000 0.592 0.000
C4 1.441 0.245 0.000
N5 2.585 0.004 0.000
H6 -2.657 -1.288 0.000
H7 -2.436 0.254 0.900
H8 -2.436 0.254 -0.900
H9 -0.209 1.213 -0.895
H10 -0.209 1.213 0.895

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.41572.32263.62194.73281.09951.10881.10882.62032.6203
O21.41571.40452.34573.38732.03042.09412.09412.08982.0898
C32.32261.40451.48262.65143.25492.61922.61921.10931.1093
C43.62192.34571.48261.16904.37593.98093.98092.11192.1119
N54.73283.38732.65141.16905.39965.10805.10803.17293.1729
H61.09952.03043.25494.37595.39961.79921.79923.61263.6126
H71.10882.09412.61923.98095.10801.79921.80013.01762.4254
H81.10882.09412.61923.98095.10801.79921.80012.42543.0176
H92.62032.08981.10932.11193.17293.61263.01762.42541.7907
H102.62032.08981.10932.11193.17293.61262.42543.01761.7907

picture of Methoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 110.883 O2 C1 H6 106.983
O2 C1 H7 111.519 O2 C1 H8 111.519
O2 C3 C4 108.646 O2 C3 H9 111.937
O2 C3 H10 111.937 C3 C4 N5 178.342
C4 C3 H9 108.281 C4 C3 H10 108.281
H6 C1 H7 109.116 H6 C1 H8 109.116
H7 C1 H8 108.533 H9 C3 H10 107.636
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CCSD=FULL/cc-pVDZ
 hartrees
Energy at 0K-246.604314
Energy at 298.15K-246.610008
HF Energy-245.809701
Nuclear repulsion energy159.177466
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/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 3187 3187 19.32      
2 A 3159 3159 7.12      
3 A 3106 3106 39.10      
4 A 3050 3050 32.96      
5 A 3034 3034 36.15      
6 A 2337 2337 3.13      
7 A 1514 1514 9.51      
8 A 1496 1496 2.26      
9 A 1491 1491 6.05      
10 A 1478 1478 0.62      
11 A 1405 1405 26.52      
12 A 1327 1327 10.83      
13 A 1242 1242 87.00      
14 A 1194 1194 35.43      
15 A 1185 1185 37.05      
16 A 1043 1043 9.45      
17 A 979 979 27.38      
18 A 910 910 20.43      
19 A 597 597 1.67      
20 A 401 401 2.89      
21 A 358 358 0.88      
22 A 259 259 9.67      
23 A 177 177 3.47      
24 A 119 119 7.36      

Unscaled Zero Point Vibrational Energy (zpe) 17523.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17523.3 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 CCSD=FULL/cc-pVDZ
ABC
0.40098 0.11120 0.09427

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.566 -0.773 0.137
O2 1.087 0.431 -0.445
C3 -0.046 0.927 0.213
C4 -1.248 0.057 0.035
N5 -2.186 -0.630 -0.097
H6 2.473 -1.053 -0.418
H7 0.823 -1.589 0.057
H8 1.823 -0.626 1.205
H9 -0.269 1.915 -0.217
H10 0.123 1.050 1.302

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.41992.34342.93593.76201.09951.10691.10853.27342.5996
O21.41991.40082.41323.45792.03072.09802.09352.02312.0888
C32.34341.40081.49492.66463.26532.66682.62471.10051.1085
C42.93592.41321.49491.16983.90972.64643.35692.11552.1142
N53.76203.45792.66461.16984.68903.16254.21523.18853.1794
H61.09952.03073.26533.90974.68901.79801.79994.04573.5915
H71.10692.09802.66682.64643.16251.79801.80183.68093.0007
H81.10852.09352.62473.35694.21521.79991.80183.58562.3887
H93.27342.02311.10052.11553.18854.04573.68093.58561.7916
H102.59962.08881.10852.11423.17943.59153.00072.38871.7916

picture of Methoxyacetonitrile state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 112.363 O2 C1 H6 106.728
O2 C1 H7 111.660 O2 C1 H8 111.191
O2 C3 C4 112.856 O2 C3 H9 107.355
O2 C3 H10 112.171 C3 C4 N5 179.518
C4 C3 H9 108.238 C4 C3 H10 107.680
H6 C1 H7 109.158 H6 C1 H8 109.203
H7 C1 H8 108.842 H9 C3 H10 108.397
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability