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 CH2CHNH (vinylazine)

using model chemistry: MP2=FULL/TZVP

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=FULL/TZVP
 hartrees
Energy at 0K-132.977569
Energy at 298.15K-132.981741
HF Energy-132.511707
Nuclear repulsion energy65.432396
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=FULL/TZVP
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' 3529 3363 0.64      
2 A' 3352 3193 1.37      
3 A' 3228 3076 4.17      
4 A' 3123 2976 38.24      
5 A' 1539 1466 13.36      
6 A' 1491 1421 11.59      
7 A' 1398 1332 13.20      
8 A' 1253 1193 27.98      
9 A' 1058 1008 9.54      
10 A' 1024 975 8.63      
11 A' 506 482 15.08      
12 A" 1130 1076 0.02      
13 A" 744 709 19.82      
14 A" 689 657 106.15      
15 A" 509 485 3.46      

Unscaled Zero Point Vibrational Energy (zpe) 12286.2 cm-1
Scaled (by 0.9527) Zero Point Vibrational Energy (zpe) 11705.1 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 MP2=FULL/TZVP
ABC
2.12734 0.37299 0.31735

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.414 0.000
C2 1.138 -0.399 0.000
N3 -1.179 -0.109 0.000
H4 0.159 1.494 0.000
H5 2.130 0.023 0.000
H6 1.017 -1.471 0.000
H7 -1.883 0.627 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7
C11.39861.28961.09152.16532.14121.8949
C21.39862.33532.13061.07771.07863.1907
N31.28962.33532.08783.31142.58361.0184
H41.09152.13062.08782.45853.08562.2185
H52.16531.07773.31142.45851.86324.0579
H62.14121.07862.58363.08561.86323.5788
H71.89493.19071.01842.21854.05793.5788

picture of vinylazine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.406 C1 C2 H6 119.048
C1 N3 H7 109.816 C2 C1 N3 120.566
C2 C1 H4 117.126 N3 C1 H4 122.308
H5 C2 H6 119.546
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at MP2=FULL/TZVP
 hartrees
Energy at 0K-132.976103
Energy at 298.15K-132.980241
HF Energy-132.510699
Nuclear repulsion energy65.430452
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=FULL/TZVP
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' 3476 3312 4.52      
2 A' 3334 3177 3.87      
3 A' 3214 3062 3.48      
4 A' 3185 3035 18.42      
5 A' 1537 1464 6.40      
6 A' 1476 1406 1.55      
7 A' 1397 1330 19.29      
8 A' 1236 1178 37.34      
9 A' 1080 1029 31.11      
10 A' 1008 960 0.20      
11 A' 506 482 9.81      
12 A" 1141 1087 65.98      
13 A" 724 690 45.59      
14 A" 672 640 16.22      
15 A" 487 464 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 12236.4 cm-1
Scaled (by 0.9527) Zero Point Vibrational Energy (zpe) 11657.7 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=FULL/TZVP
ABC
1.98998 0.37577 0.31608

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.447 0.000
C2 1.114 -0.400 0.000
N3 -1.240 0.087 0.000
H4 0.187 1.517 0.000
H5 2.117 -0.004 0.000
H6 0.987 -1.473 0.000
H7 -1.290 -0.934 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7
C11.39891.29141.08682.16412.15821.8897
C21.39892.40412.12911.07811.08062.4627
N31.29142.40412.02073.35832.71911.0225
H41.08682.12912.02072.45693.09502.8622
H52.16411.07813.35832.45691.85323.5316
H62.15821.08062.71913.09501.85322.3398
H71.88972.46271.02252.86223.53162.3398

picture of vinylazine state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.231 C1 C2 H6 120.472
C1 N3 H7 108.955 C2 C1 N3 126.608
C2 C1 H4 117.305 N3 C1 H4 116.087
H5 C2 H6 118.296
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability