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All results from a given calculation for CH2CHNH (vinylazine)

using model chemistry: MP2/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS cis 2A"
1 2 no CS trans 2A"

Conformer 1 (CS cis)

Jump to S1C2
Energy calculated at MP2/CEP-121G*
 hartrees
Energy at 0K-23.319598
Energy at 298.15K-23.323762
HF Energy-22.943393
Nuclear repulsion energy35.925647
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 MP2/CEP-121G*
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' 3494 3329 0.85      
2 A' 3337 3179 3.47      
3 A' 3208 3057 6.44      
4 A' 3119 2972 45.55      
5 A' 1532 1459 18.41      
6 A' 1471 1402 16.40      
7 A' 1392 1327 15.92      
8 A' 1247 1189 25.57      
9 A' 1047 998 9.72      
10 A' 1012 964 6.21      
11 A' 495 472 15.60      
12 A" 1122 1069 0.01      
13 A" 762 726 17.91      
14 A" 700 667 129.48      
15 A" 518 493 4.70      

Unscaled Zero Point Vibrational Energy (zpe) 12228.0 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 11650.8 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 MP2/CEP-121G*
ABC
2.06728 0.36623 0.31111

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.424 0.000
C2 1.150 -0.404 0.000
N3 -1.190 -0.114 0.000
H4 0.162 1.509 0.000
H5 2.149 0.016 0.000
H6 1.019 -1.480 0.000
H7 -1.897 0.630 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7
C11.41641.30581.09702.18742.15911.9083
C21.41642.35792.15251.08371.08413.2175
N31.30582.35792.11153.34172.59761.0260
H41.09702.15252.11152.48583.10902.2383
H52.18741.08373.34172.48581.87444.0926
H62.15911.08412.59763.10901.87443.5994
H71.90833.21751.02602.23834.09263.5994

picture of vinylazine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.505 C1 C2 H6 118.807
C1 N3 H7 109.261 C2 C1 N3 119.977
C2 C1 H4 117.265 N3 C1 H4 122.758
H5 C2 H6 119.688
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at MP2/CEP-121G*
 hartrees
Energy at 0K-23.318135
Energy at 298.15K-23.322275
HF Energy-22.942460
Nuclear repulsion energy35.976894
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 MP2/CEP-121G*
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' 3444 3281 8.75      
2 A' 3317 3161 7.47      
3 A' 3194 3043 5.32      
4 A' 3186 3036 20.76      
5 A' 1530 1457 7.48      
6 A' 1463 1394 2.80      
7 A' 1391 1325 30.44      
8 A' 1236 1178 34.94      
9 A' 1063 1013 28.89      
10 A' 996 949 0.71      
11 A' 498 474 9.17      
12 A" 1143 1089 73.77      
13 A" 764 728 67.96      
14 A" 681 649 7.00      
15 A" 494 470 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 12198.8 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 11623.0 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 MP2/CEP-121G*
ABC
1.95035 0.36712 0.30896

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.454 0.000
C2 1.127 -0.406 0.000
N3 -1.255 0.088 0.000
H4 0.186 1.529 0.000
H5 2.136 -0.008 0.000
H6 1.000 -1.485 0.000
H7 -1.299 -0.940 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7
C11.41761.30731.09172.18532.18091.9053
C21.41762.43322.15191.08411.08642.4842
N31.30732.43322.03823.39252.74931.0297
H41.09172.15192.03822.48323.12192.8818
H52.18531.08413.39252.48321.86303.5588
H62.18091.08642.74933.12191.86302.3619
H71.90532.48421.02972.88183.55882.3619

picture of vinylazine state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.170 C1 C2 H6 120.574
C1 N3 H7 108.645 C2 C1 N3 126.451
C2 C1 H4 117.504 N3 C1 H4 116.045
H5 C2 H6 118.256
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability