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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: TPSSh/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/cc-pVTZ
 hartrees
Energy at 0K-132.739917
Energy at 298.15K-132.742046
HF Energy-132.739917
Nuclear repulsion energy59.493688
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 TPSSh/cc-pVTZ
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' 3508 3396 5.53      
2 A' 3482 3371 90.13      
3 A' 2234 2163 111.78      
4 A' 1644 1592 24.28      
5 A' 1078 1044 13.06      
6 A' 650 629 192.28      
7 A' 495 479 100.85      
8 A' 395 382 15.83      
9 A" 3589 3475 26.74      
10 A" 1204 1166 0.24      
11 A" 687 665 40.21      
12 A" 360 349 7.86      

Unscaled Zero Point Vibrational Energy (zpe) 9661.7 cm-1
Scaled (by 0.9683) Zero Point Vibrational Energy (zpe) 9355.4 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 TPSSh/cc-pVTZ
ABC
10.18677 0.31248 0.30597

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.002 1.364 0.000
C2 0.000 0.161 0.000
N3 0.082 -1.189 0.000
H4 -0.004 2.426 0.000
H5 -0.291 -1.625 0.834
H6 -0.291 -1.625 -0.834

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20392.55491.06123.11753.1175
C21.20391.35232.26511.99211.9921
N32.55491.35233.61591.01211.0121
H41.06122.26513.61594.14564.1456
H53.11751.99211.01214.14561.6673
H63.11751.99211.01214.14561.6673

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.420 C2 C1 H4 179.537
C2 N3 H5 114.051 C2 N3 H6 114.051
H5 N3 H6 110.913
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.387      
2 C 0.170      
3 N -0.200      
4 H 0.100      
5 H 0.158      
6 H 0.158      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.068 -1.498 0.000 1.840
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.881 0.079 0.000
y 0.079 6.991 0.000
z 0.000 0.000 3.082


<r2> (average value of r2) Å2
<r2> 44.304
(<r2>)1/2 6.656