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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: PBEPBE/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/cc-pVDZ
 hartrees
Energy at 0K-132.522597
Energy at 298.15K-132.524609
HF Energy-132.522597
Nuclear repulsion energy58.804504
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/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' 3441 3421 77.88      
2 A' 3403 3383 11.63      
3 A' 2201 2188 87.42      
4 A' 1563 1554 17.75      
5 A' 1073 1067 10.33      
6 A' 668 664 185.81      
7 A' 472 469 73.72      
8 A' 345 343 16.08      
9 A" 3486 3465 20.49      
10 A" 1168 1162 0.16      
11 A" 650 646 29.73      
12 A" 335 333 6.74      

Unscaled Zero Point Vibrational Energy (zpe) 9402.4 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 9347.8 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/cc-pVDZ
ABC
9.76974 0.30575 0.29977

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.004 1.381 0.000
C2 0.000 0.155 0.000
N3 0.097 -1.201 0.000
H4 -0.018 2.457 0.000
H5 -0.316 -1.631 0.837
H6 -0.316 -1.631 -0.837

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.22562.58411.07683.14183.1418
C21.22561.36002.30241.99811.9981
N32.58411.36003.66071.02761.0276
H41.07682.30243.66074.18424.1842
H53.14181.99811.02764.18421.6744
H63.14181.99811.02764.18421.6744

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.131 C2 C1 H4 179.460
C2 N3 H5 112.885 C2 N3 H6 112.885
H5 N3 H6 109.129
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.074      
2 C 0.033      
3 N -0.169      
4 H -0.019      
5 H 0.114      
6 H 0.114      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.161 -1.596 0.000 1.973
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.768 2.066 0.000
y 2.066 -12.153 0.000
z 0.000 0.000 -16.961
Traceless
 xyz
x -5.210 2.066 0.000
y 2.066 6.211 0.000
z 0.000 0.000 -1.001
Polar
3z2-r2-2.002
x2-y2-7.614
xy2.066
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.060 0.111 0.000
y 0.111 6.854 0.000
z 0.000 0.000 2.440


<r2> (average value of r2) Å2
<r2> 44.893
(<r2>)1/2 6.700