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 HCCNH2 (Ethynamine)

using model chemistry: B2PLYP=FULL/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-132.644396
Energy at 298.15K-132.646543
HF Energy-132.454545
Nuclear repulsion energy59.524802
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 B2PLYP=FULL/6-311+G(3df,2p)
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' 3567 3567 18.99      
2 A' 3495 3495 91.42      
3 A' 2218 2218 123.40      
4 A' 1650 1650 27.48      
5 A' 1080 1080 16.16      
6 A' 618 618 182.35      
7 A' 501 501 114.71      
8 A' 425 425 7.45      
9 A" 3657 3657 43.49      
10 A" 1202 1202 0.28      
11 A" 691 691 40.92      
12 A" 363 363 8.60      

Unscaled Zero Point Vibrational Energy (zpe) 9733.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9733.9 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 B2PLYP=FULL/6-311+G(3df,2p)
ABC
10.34657 0.31246 0.30579

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.017 1.365 0.000
C2 0.000 0.161 0.000
N3 0.093 -1.187 0.000
H4 -0.039 2.424 0.000
H5 -0.254 -1.635 0.834
H6 -0.254 -1.635 -0.834

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20472.55481.05903.12273.1227
C21.20471.35102.26371.99581.9958
N32.55481.35103.61361.00821.0082
H41.05902.26373.61364.14904.1490
H53.12271.99581.00824.14901.6689
H63.12271.99581.00824.14901.6689

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.874 C2 C1 H4 179.600
C2 N3 H5 114.774 C2 N3 H6 114.774
H5 N3 H6 111.714
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability