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: CCSD(T)=FULL/cc-pVDZ

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 CCSD(T)=FULL/cc-pVDZ
 hartrees
Energy at 0K-132.937429
Energy at 298.15K-132.941573
HF Energy-132.478024
Nuclear repulsion energy64.248601
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 CCSD(T)=FULL/cc-pVDZ
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' 3422 3296        
2 A' 3289 3168        
3 A' 3171 3054        
4 A' 3082 2969        
5 A' 1510 1454        
6 A' 1454 1401        
7 A' 1362 1312        
8 A' 1241 1195        
9 A' 1108 1067        
10 A' 988 952        
11 A' 478 461        
12 A" 1042 1004        
13 A" 770 742        
14 A" 677 652        
15 A" 519 500        

Unscaled Zero Point Vibrational Energy (zpe) 12057.0 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 11613.3 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 CCSD(T)=FULL/cc-pVDZ
ABC
2.02613 0.36128 0.30661

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.426 0.000
C2 1.160 -0.388 0.000
N3 -1.202 -0.135 0.000
H4 0.147 1.523 0.000
H5 2.164 0.051 0.000
H6 1.046 -1.477 0.000
H7 -1.908 0.619 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7
C11.41691.32591.10682.19612.17161.9174
C21.41692.37542.16211.09521.09583.2289
N31.32592.37542.13713.37072.61811.0331
H41.10682.16212.13712.49633.13172.2446
H52.19611.09523.37072.49631.89364.1109
H62.17161.09582.61813.13171.89363.6222
H71.91743.22891.03312.24464.11093.6222

picture of vinylazine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.369 C1 C2 H6 119.042
C1 N3 H7 108.093 C2 C1 N3 119.968
C2 C1 H4 117.372 N3 C1 H4 122.660
H5 C2 H6 119.589
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS trans)

Jump to S1C1
Energy calculated at CCSD(T)=FULL/cc-pVDZ
 hartrees
Energy at 0K-132.937397
Energy at 298.15K 
HF Energy-132.477588
Nuclear repulsion energy64.247677
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 CCSD(T)=FULL/cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at CCSD(T)=FULL/cc-pVDZ
ABC
1.92046 0.36236 0.30484

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.456 0.000
C2 1.137 -0.392 0.000
N3 -1.269 0.073 0.000
H4 0.174 1.545 0.000
H5 2.154 0.016 0.000
H6 1.014 -1.484 0.000
H7 -1.278 -0.965 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7
C11.41821.32571.10282.19812.18901.9107
C21.41822.45022.16301.09571.09842.4814
N31.32572.45022.06163.42312.76361.0373
H41.10282.16302.06162.50123.14312.8992
H52.19811.09573.42312.50121.88313.5687
H62.18901.09842.76363.14311.88312.3504
H71.91072.48141.03732.89923.56872.3504

picture of vinylazine state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 121.412 C1 C2 H6 120.346
C1 N3 H7 107.289 C2 C1 N3 126.468
C2 C1 H4 117.645 N3 C1 H4 115.887
H5 C2 H6 118.242
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability