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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: TPSSh/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-132.698291
Energy at 298.15K-132.700403
HF Energy-132.698291
Nuclear repulsion energy59.388533
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/6-31G(2df,p)
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' 3524 3400 64.32      
2 A' 3505 3382 22.54      
3 A' 2252 2174 82.51      
4 A' 1643 1585 20.65      
5 A' 1079 1041 9.70      
6 A' 678 654 195.37      
7 A' 498 481 80.44      
8 A' 372 359 22.09      
9 A" 3590 3464 21.38      
10 A" 1201 1159 0.13      
11 A" 683 659 35.19      
12 A" 362 349 5.26      

Unscaled Zero Point Vibrational Energy (zpe) 9693.0 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 9353.7 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/6-31G(2df,p)
ABC
10.08323 0.31133 0.30505

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.009 1.367 0.000
C2 0.000 0.161 0.000
N3 0.095 -1.192 0.000
H4 -0.028 2.428 0.000
H5 -0.292 -1.624 0.832
H6 -0.292 -1.624 -0.832

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20612.56061.06103.11743.1174
C21.20611.35582.26711.99071.9907
N32.56061.35583.62151.01431.0143
H41.06102.26713.62154.14484.1448
H53.11741.99071.01434.14481.6630
H63.11741.99071.01434.14481.6630

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.400 C2 C1 H4 179.404
C2 N3 H5 113.488 C2 N3 H6 113.488
H5 N3 H6 110.133
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.200      
2 C 0.111      
3 N -0.670      
4 H 0.195      
5 H 0.282      
6 H 0.282      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.136 -1.371 0.000 1.780
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 2.233 0.064 0.000
y 0.064 6.481 0.000
z 0.000 0.000 2.598


<r2> (average value of r2) Å2
<r2> 44.095
(<r2>)1/2 6.640