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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-311+G(3df,2p)
 hartrees
Energy at 0K-132.568020
Energy at 298.15K-132.570012
HF Energy-132.568020
Nuclear repulsion energy59.249027
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/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' 3455 3455 7.56      
2 A' 3409 3409 93.30      
3 A' 2182 2182 132.71      
4 A' 1583 1583 25.33      
5 A' 1072 1072 15.22      
6 A' 576 576 169.28      
7 A' 467 467 102.35      
8 A' 361 361 24.61      
9 A" 3536 3536 35.79      
10 A" 1153 1153 0.18      
11 A" 653 653 41.76      
12 A" 350 350 8.83      

Unscaled Zero Point Vibrational Energy (zpe) 9398.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9398.6 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/6-311+G(3df,2p)
ABC
10.20032 0.31018 0.30347

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.012 1.371 0.000
C2 0.000 0.158 0.000
N3 0.069 -1.191 0.000
H4 0.012 2.440 0.000
H5 -0.285 -1.641 0.841
H6 -0.285 -1.641 -0.841

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21292.56251.06843.14143.1414
C21.21291.35082.28132.00652.0065
N32.56251.35083.63071.01801.0180
H41.06842.28133.63074.17694.1769
H53.14142.00651.01804.17691.6830
H63.14142.00651.01804.17691.6830

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.488 C2 C1 H4 179.438
C2 N3 H5 115.072 C2 N3 H6 115.072
H5 N3 H6 111.512
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.013      
2 C 0.223      
3 N -0.815      
4 H 0.200      
5 H 0.202      
6 H 0.202      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.996 -1.571 0.000 1.860
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.786 1.996 0.000
y 1.996 -12.660 0.000
z 0.000 0.000 -17.381
Traceless
 xyz
x -5.766 1.996 0.000
y 1.996 6.424 0.000
z 0.000 0.000 -0.658
Polar
3z2-r2-1.316
x2-y2-8.126
xy1.996
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.927 0.043 0.000
y 0.043 7.723 0.000
z 0.000 0.000 3.846


<r2> (average value of r2) Å2
<r2> 44.886
(<r2>)1/2 6.700