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All results from a given calculation for CH3OCH2CN (Methoxyacetonitrile)

using model chemistry: CID/3-21G*

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 CID/3-21G*
 hartrees
Energy at 0K-244.871415
Energy at 298.15K-244.877137
HF Energy-244.422380
Nuclear repulsion energy155.456638
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 CID/3-21G*
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' 3228 3003 17.04      
2 A' 3101 2885 25.40      
3 A' 3094 2879 19.90      
4 A' 2454 2283 1.07      
5 A' 1638 1524 2.84      
6 A' 1626 1513 6.90      
7 A' 1567 1458 1.32      
8 A' 1485 1381 30.82      
9 A' 1249 1162 19.61      
10 A' 1159 1078 101.93      
11 A' 980 912 4.49      
12 A' 965 898 31.14      
13 A' 590 549 1.14      
14 A' 389 362 2.37      
15 A' 189 176 0.88      
16 A" 3143 2924 49.60      
17 A" 3127 2910 25.42      
18 A" 1611 1499 8.51      
19 A" 1332 1239 0.78      
20 A" 1218 1134 3.23      
21 A" 1109 1032 2.80      
22 A" 454 422 0.33      
23 A" 231 214 6.32      
24 A" 92 85 1.13      

Unscaled Zero Point Vibrational Energy (zpe) 18013.8 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 16761.8 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 CID/3-21G*
ABC
0.92041 0.08149 0.07704

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.150 -0.439 0.000
O2 -0.706 -0.629 0.000
C3 0.000 0.637 0.000
C4 1.436 0.331 0.000
N5 2.566 0.089 0.000
H6 -2.578 -1.438 0.000
H7 -2.482 0.103 0.891
H8 -2.482 0.103 -0.891
H9 -0.244 1.232 -0.886
H10 -0.244 1.232 0.886

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.45642.40413.66764.74581.08671.09421.09422.68562.6856
O21.45641.44892.34693.35012.03912.11742.11742.11212.1121
C32.40411.44891.46812.62393.30882.69072.69071.09521.0952
C43.66762.34691.46811.15584.38594.02454.02452.10202.1020
N54.74583.35012.62391.15585.36585.12655.12653.16003.1600
H61.08672.03913.30884.38595.36581.78241.78243.65543.6554
H71.09422.11742.69074.02455.12651.78241.78143.07322.5073
H81.09422.11742.69074.02455.12651.78241.78142.50733.0732
H92.68562.11211.09522.10203.16003.65543.07322.50731.7728
H102.68562.11211.09522.10203.16003.65542.50733.07321.7728

picture of Methoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 111.682 O2 C1 H6 105.686
O2 C1 H7 111.436 O2 C1 H8 111.436
O2 C3 C4 107.135 O2 C3 H9 111.486
O2 C3 H10 111.486 C3 C4 N5 179.980
C4 C3 H9 109.316 C4 C3 H10 109.316
H6 C1 H7 109.624 H6 C1 H8 109.624
H7 C1 H8 108.979 H9 C3 H10 108.071
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CID/3-21G*
 hartrees
Energy at 0K-244.874714
Energy at 298.15K-244.880549
HF Energy-244.425702
Nuclear repulsion energy158.265259
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 CID/3-21G*
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 3230 3005 18.07      
2 A 3201 2979 4.79      
3 A 3159 2940 37.65      
4 A 3113 2897 23.98      
5 A 3103 2887 23.52      
6 A 2436 2267 2.14      
7 A 1633 1519 8.39      
8 A 1612 1500 9.82      
9 A 1600 1489 3.49      
10 A 1567 1458 0.82      
11 A 1458 1356 9.40      
12 A 1371 1276 2.80      
13 A 1251 1164 9.04      
14 A 1220 1135 3.16      
15 A 1170 1089 92.31      
16 A 1085 1010 7.47      
17 A 935 870 32.30      
18 A 916 852 20.41      
19 A 631 587 1.78      
20 A 441 411 0.37      
21 A 399 371 4.59      
22 A 268 250 13.51      
23 A 192 179 3.57      
24 A 125 116 11.14      

Unscaled Zero Point Vibrational Energy (zpe) 18058.4 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 16803.3 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 CID/3-21G*
ABC
0.38325 0.11187 0.09380

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.585 -0.784 0.143
O2 1.088 0.455 -0.447
C3 -0.095 0.950 0.219
C4 -1.257 0.053 0.042
N5 -2.149 -0.669 -0.106
H6 2.483 -1.037 -0.416
H7 0.854 -1.590 0.050
H8 1.835 -0.646 1.199
H9 -0.311 1.918 -0.230
H10 0.076 1.088 1.292

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.46012.41622.96473.74401.08671.09241.09423.32292.6651
O21.46011.44452.42853.44312.04322.11822.11642.03592.1085
C32.41621.44451.47902.63563.31612.71742.68901.08891.0951
C42.96472.42851.47901.15683.92192.67503.37412.10932.1004
N53.74403.44312.63561.15684.65623.14464.19143.17613.1607
H61.08672.04323.31613.92194.65621.78201.78354.07153.6362
H71.09242.11822.71742.67503.14461.78201.78173.70793.0529
H81.09422.11642.68903.37414.19141.78351.78173.63622.4709
H93.32292.03591.08892.10933.17614.07153.70793.63621.7766
H102.66512.10851.09512.10043.16073.63623.05292.47091.7766

picture of Methoxyacetonitrile state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 112.575 O2 C1 H6 105.755
O2 C1 H7 111.348 O2 C1 H8 111.091
O2 C3 C4 112.329 O2 C3 H9 106.105
O2 C3 H10 111.505 C3 C4 N5 178.637
C4 C3 H9 109.510 C4 C3 H10 108.448
H6 C1 H7 109.722 H6 C1 H8 109.729
H7 C1 H8 109.144 H9 C3 H10 108.870
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability