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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-132.684899
Energy at 298.15K-132.687104
HF Energy-132.684899
Nuclear repulsion energy59.653837
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 mPW1PW91/6-311G**
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' 3580 3425 16.30      
2 A' 3514 3361 91.54      
3 A' 2273 2174 111.62      
4 A' 1648 1576 33.32      
5 A' 1106 1058 16.14      
6 A' 610 583 199.40      
7 A' 511 489 134.86      
8 A' 448 428 10.93      
9 A" 3669 3510 34.74      
10 A" 1206 1154 0.06      
11 A" 722 691 37.28      
12 A" 380 364 9.37      

Unscaled Zero Point Vibrational Energy (zpe) 9832.3 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 9406.5 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 mPW1PW91/6-311G**
ABC
10.32461 0.31423 0.30743

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.041 1.361 0.000
C2 0.000 0.159 0.000
N3 0.111 -1.182 0.000
H4 -0.083 2.421 0.000
H5 -0.226 -1.634 0.836
H6 -0.226 -1.634 -0.836

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20222.54701.06083.11513.1151
C21.20221.34562.26301.99171.9917
N32.54701.34563.60771.00901.0090
H41.06082.26303.60774.14274.1427
H53.11511.99171.00904.14271.6725
H63.11511.99171.00904.14271.6725

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.188 C2 C1 H4 179.612
C2 N3 H5 114.789 C2 N3 H6 114.789
H5 N3 H6 111.959
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.006      
2 C 0.027      
3 N -0.590      
4 H 0.104      
5 H 0.232      
6 H 0.232      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.084 -1.574 0.000 1.911
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.225 1.772 0.000
y 1.772 -11.836 0.000
z 0.000 0.000 -16.864
Traceless
 xyz
x -5.875 1.772 0.000
y 1.772 6.708 0.000
z 0.000 0.000 -0.834
Polar
3z2-r2-1.667
x2-y2-8.389
xy1.772
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.195 -0.067 0.000
y -0.067 6.566 0.000
z 0.000 0.000 2.497


<r2> (average value of r2) Å2
<r2> 44.029
(<r2>)1/2 6.635