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All results from a given calculation for CH3OCH2CN (Methoxyacetonitrile)

using model chemistry: QCISD/6-31G**

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/6-31G**
 hartrees
Energy at 0K-246.581343
Energy at 298.15K-246.586900
HF Energy-245.796786
Nuclear repulsion energy156.643399
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/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3227 3038 21.17      
2 A' 3070 2890 52.26      
3 A' 3061 2882 20.51      
4 A' 2357 2219 2.01      
5 A' 1576 1484 0.90      
6 A' 1560 1468 6.96      
7 A' 1526 1437 1.57      
8 A' 1454 1369 54.14      
9 A' 1260 1186 62.30      
10 A' 1192 1122 108.02      
11 A' 1021 961 30.95      
12 A' 969 912 9.01      
13 A' 542 510 1.10      
14 A' 383 361 2.24      
15 A' 179 168 2.45      
16 A" 3132 2949 51.24      
17 A" 3101 2919 34.53      
18 A" 1547 1456 5.42      
19 A" 1289 1214 3.44      
20 A" 1209 1138 4.85      
21 A" 1066 1003 2.73      
22 A" 360 339 2.31      
23 A" 226 213 4.55      
24 A" 85 80 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 17695.5 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 16658.5 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/6-31G**
ABC
0.97572 0.08189 0.07777

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.137 -0.341 0.000
O2 -0.740 -0.602 0.000
C3 0.000 0.598 0.000
C4 1.437 0.257 0.000
N5 2.580 0.025 0.000
H6 -2.631 -1.308 0.000
H7 -2.437 0.221 0.891
H8 -2.437 0.221 -0.891
H9 -0.215 1.208 -0.886
H10 -0.215 1.208 0.886

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.42102.33443.62354.73201.08651.09511.09512.62292.6229
O21.42101.40952.34023.37962.01882.08532.08532.08232.0823
C32.33441.40951.47642.64323.24942.62182.62181.09711.0971
C43.62352.34021.47641.16714.35893.97473.97472.10172.1017
N54.73203.37962.64321.16715.37995.09955.09953.16203.1620
H61.08652.01883.24944.35895.37991.78081.78083.59963.5996
H71.09512.08532.62183.97475.09951.78081.78183.01132.4312
H81.09512.08532.62183.97475.09951.78081.78182.43123.0113
H92.62292.08231.09712.10173.16203.59963.01132.43121.7719
H102.62292.08231.09712.10173.16203.59962.43123.01131.7719

picture of Methoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 111.119 O2 C1 H6 106.485
O2 C1 H7 111.286 O2 C1 H8 111.286
O2 C3 C4 108.344 O2 C3 H9 111.740
O2 C3 H10 111.740 C3 C4 N5 178.103
C4 C3 H9 108.608 C4 C3 H10 108.608
H6 C1 H7 109.429 H6 C1 H8 109.429
H7 C1 H8 108.882 H9 C3 H10 107.716
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at QCISD/6-31G**
 hartrees
Energy at 0K-246.583793
Energy at 298.15K-246.589475
HF Energy-245.798755
Nuclear repulsion energy159.532898
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/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3228 3039 21.90      
2 A 3191 3004 8.04      
3 A 3151 2967 40.09      
4 A 3087 2906 32.76      
5 A 3078 2897 34.55      
6 A 2343 2206 2.57      
7 A 1568 1476 7.65      
8 A 1550 1460 4.96      
9 A 1542 1451 1.80      
10 A 1526 1437 0.38      
11 A 1429 1345 24.25      
12 A 1342 1263 6.78      
13 A 1251 1178 56.77      
14 A 1213 1142 14.47      
15 A 1191 1121 83.90      
16 A 1061 999 6.85      
17 A 971 914 30.66      
18 A 916 862 21.91      
19 A 597 562 2.14      
20 A 402 378 2.81      
21 A 353 332 1.31      
22 A 258 243 10.93      
23 A 177 167 4.28      
24 A 118 111 8.70      

Unscaled Zero Point Vibrational Energy (zpe) 17771.5 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 16730.1 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/6-31G**
ABC
0.39697 0.11252 0.09493

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.560 -0.778 0.140
O2 1.082 0.431 -0.445
C3 -0.053 0.936 0.213
C4 -1.244 0.061 0.038
N5 -2.168 -0.640 -0.098
H6 2.463 -1.043 -0.403
H7 0.828 -1.584 0.044
H8 1.798 -0.633 1.198
H9 -0.268 1.911 -0.222
H10 0.120 1.063 1.288

Atom - Atom Distances (Å)
  C1 O2 C3 C4 N5 H6 H7 H8 H9 H10
C11.42512.35502.92883.73791.08641.09311.09483.27132.6041
O21.42511.40662.40483.43982.01982.08882.08422.01592.0806
C32.35501.40661.48802.65553.26012.67512.61941.08881.0962
C42.92882.40481.48801.16763.89342.64593.32962.10762.1044
N53.73793.43982.65551.16764.65873.14424.17263.18323.1711
H61.08642.01983.26013.89344.65871.77971.78144.02693.5754
H71.09312.08882.67512.64593.14421.77971.78303.67233.0093
H81.09482.08422.61943.32964.17261.78141.78303.57172.3876
H93.27132.01591.08882.10763.18324.02693.67233.57171.7746
H102.60412.08061.09622.10443.17113.57543.00932.38761.7746

picture of Methoxyacetonitrile state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 112.541 O2 C1 H6 106.285
O2 C1 H7 111.417 O2 C1 H8 110.929
O2 C3 C4 112.325 O2 C3 H9 107.084
O2 C3 H10 111.873 C3 C4 N5 179.094
C4 C3 H9 108.761 C4 C3 H10 108.084
H6 C1 H7 109.478 H6 C1 H8 109.512
H7 C1 H8 109.168 H9 C3 H10 108.617
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability