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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: PBEPBEultrafine/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBEultrafine/TZVP
 hartrees
Energy at 0K-132.566522
Energy at 298.15K-132.568429
HF Energy-132.566522
Nuclear repulsion energy59.223247
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 PBEPBEultrafine/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' 3459 3420 9.27      
2 A' 3423 3384 97.90      
3 A' 2192 2167 119.88      
4 A' 1593 1575 32.37      
5 A' 1077 1065 15.51      
6 A' 546 540 194.04      
7 A' 466 460 113.71      
8 A' 320 316 40.46      
9 A" 3544 3503 32.45      
10 A" 1156 1143 0.24      
11 A" 641 633 44.99      
12 A" 339 335 8.92      

Unscaled Zero Point Vibrational Energy (zpe) 9376.8 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 9269.9 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 PBEPBEultrafine/TZVP
ABC
10.26778 0.30990 0.30300

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.016 1.373 0.000
C2 0.000 0.158 0.000
N3 0.062 -1.190 0.000
H4 0.014 2.441 0.000
H5 -0.274 -1.647 0.845
H6 -0.274 -1.647 -0.845

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21482.56311.06853.14883.1488
C21.21481.34942.28332.01152.0115
N32.56311.34943.63161.01791.0179
H41.06852.28333.63164.18434.1843
H53.14882.01151.01794.18431.6907
H63.14882.01151.01794.18431.6907

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.586 C2 C1 H4 179.106
C2 N3 H5 115.653 C2 N3 H6 115.653
H5 N3 H6 112.302
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.509      
2 C 0.187      
3 N -0.303      
4 H 0.135      
5 H 0.245      
6 H 0.245      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.080 -1.648 0.000 1.971
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.682 2.036 0.000
y 2.036 -12.293 0.000
z 0.000 0.000 -17.172
Traceless
 xyz
x -5.949 2.036 0.000
y 2.036 6.634 0.000
z 0.000 0.000 -0.685
Polar
3z2-r2-1.369
x2-y2-8.388
xy2.036
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.674 0.087 0.000
y 0.087 7.281 0.000
z 0.000 0.000 2.808


<r2> (average value of r2) Å2
<r2> 44.799
(<r2>)1/2 6.693