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All results from a given calculation for CH3OCH2CN (Methoxyacetonitrile)

using model chemistry: CBS-Q

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 CBS-Q
 hartrees
Energy at 0K-246.865233
Energy at 298.15K-246.858512
Nuclear repulsion energy 
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 CBS-Q
Rotational Constants (cm-1) from geometry optimized at CBS-Q
See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CBS-Q
 hartrees
Energy at 0K-246.867118
Energy at 298.15K-246.873300
HF Energy-245.793487
Nuclear repulsion energy160.948641
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 CBS-Q
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 3319 3319 29.92      
2 A 3301 3301 10.53      
3 A 3249 3249 49.66      
4 A 3209 3209 31.23      
5 A 3180 3180 39.81      
6 A 2620 2620 1.61      
7 A 1646 1646 8.82      
8 A 1635 1635 4.70      
9 A 1632 1632 2.70      
10 A 1615 1615 0.38      
11 A 1530 1530 31.36      
12 A 1443 1443 14.31      
13 A 1356 1356 107.04      
14 A 1296 1296 18.38      
15 A 1281 1281 95.89      
16 A 1139 1139 10.03      
17 A 1037 1037 40.14      
18 A 955 955 37.03      
19 A 649 649 1.44      
20 A 423 423 2.29      
21 A 407 407 3.28      
22 A 281 281 16.60      
23 A 185 185 3.72      
24 A 118 118 10.04      

Unscaled Zero Point Vibrational Energy (zpe) 18751.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18751.1 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 CBS-Q
ABC
0.39378 0.11316 0.09519

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.610 -0.736 0.133
O2 1.053 0.420 -0.433
C3 -0.068 0.909 0.205
C4 -1.262 0.035 0.031
N5 -2.172 -0.631 -0.086
H6 2.496 -0.970 -0.444
H7 0.917 -1.574 0.084
H8 1.891 -0.563 1.172
H9 -0.293 1.877 -0.227
H10 0.097 1.040 1.274

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.40242.35102.97533.78951.08281.08841.09023.25212.5969
O21.40241.37982.39223.40952.00342.06482.06071.99402.0526
C32.35101.37981.48952.62353.24442.67472.63501.08341.0893
C42.97532.39221.48951.13403.91882.71013.40662.09682.0975
N53.78953.40952.62351.13404.69373.23474.25433.13693.1286
H61.08282.00343.24443.91884.69371.77061.77223.99093.5700
H71.08842.06482.67472.71013.23471.77061.77603.67052.9871
H81.09022.06072.63503.40664.25431.77221.77603.56132.4086
H93.25211.99401.08342.09683.13693.99093.67053.56131.7622
H102.59692.05261.08932.09753.12863.57002.98712.40861.7622

picture of Methoxyacetonitrile state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 115.341 O2 C1 H6 106.735
O2 C1 H7 111.358 O2 C1 H8 110.909
O2 C3 C4 112.906 O2 C3 H9 107.492
O2 C3 H10 111.928 C3 C4 N5 179.226
C4 C3 H9 108.130 C4 C3 H10 107.837
H6 C1 H7 109.275 H6 C1 H8 109.292
H7 C1 H8 109.217 H9 C3 H10 108.402
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability