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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: PBEPBE/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/aug-cc-pVDZ
 hartrees
Energy at 0K-132.536487
Energy at 298.15K-132.538306
HF Energy-132.536487
Nuclear repulsion energy58.879346
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 PBEPBE/aug-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' 3439 3418 5.13      
2 A' 3429 3408 93.99      
3 A' 2188 2175 127.15      
4 A' 1563 1554 21.96      
5 A' 1070 1063 14.18      
6 A' 570 567 168.83      
7 A' 456 453 85.41      
8 A' 285 283 31.61      
9 A" 3526 3504 31.74      
10 A" 1145 1138 0.43      
11 A" 596 592 43.97      
12 A" 312 310 6.01      

Unscaled Zero Point Vibrational Energy (zpe) 9289.2 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 9232.5 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 PBEPBE/aug-cc-pVDZ
ABC
10.06140 0.30622 0.29973

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.057 1.380 0.000
C2 0.000 0.156 0.000
N3 0.038 -1.200 0.000
H4 0.072 2.455 0.000
H5 -0.340 -1.637 0.843
H6 -0.340 -1.637 -0.843

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.22512.57991.07503.15743.1574
C21.22511.35662.29972.01032.0103
N32.57991.35663.65491.02211.0221
H41.07502.29973.65494.19774.1977
H53.15742.01031.02214.19771.6867
H63.15742.01031.02214.19771.6867

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.719 C2 C1 H4 178.073
C2 N3 H5 114.632 C2 N3 H6 114.632
H5 N3 H6 111.198
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.789      
2 C -0.221      
3 N -0.058      
4 H -0.490      
5 H -0.009      
6 H -0.009      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.083 -1.508 0.000 1.856
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.706 2.213 0.000
y 2.213 -12.891 0.000
z 0.000 0.000 -17.467
Traceless
 xyz
x -5.527 2.213 0.000
y 2.213 6.196 0.000
z 0.000 0.000 -0.668
Polar
3z2-r2-1.337
x2-y2-7.815
xy2.213
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.021 0.197 0.000
y 0.197 7.968 0.000
z 0.000 0.000 3.931


<r2> (average value of r2) Å2
<r2> 45.354
(<r2>)1/2 6.735