return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: M06-2X/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 M06-2X/6-31G(2df,p)
 hartrees
Energy at 0K-132.636484
Energy at 298.15K-132.638779
HF Energy-132.636484
Nuclear repulsion energy59.564094
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 M06-2X/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' 3568 3398 16.80      
2 A' 3539 3370 100.99      
3 A' 2311 2201 85.76      
4 A' 1630 1553 28.07      
5 A' 1096 1043 14.20      
6 A' 669 637 198.15      
7 A' 546 520 87.79      
8 A' 471 448 21.03      
9 A" 3658 3484 40.31      
10 A" 1194 1138 0.00      
11 A" 746 710 33.90      
12 A" 395 376 6.42      

Unscaled Zero Point Vibrational Energy (zpe) 9910.7 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 9438.9 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 M06-2X/6-31G(2df,p)
ABC
10.14673 0.31315 0.30670

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.067 1.360 0.000
C2 0.000 0.163 0.000
N3 0.140 -1.185 0.000
H4 -0.133 2.418 0.000
H5 -0.221 -1.630 0.833
H6 -0.221 -1.630 -0.833

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.19912.55301.06063.10723.1072
C21.19911.35462.25971.98861.9886
N32.55301.35463.61351.01071.0107
H41.06062.25973.61354.13384.1338
H53.10721.98861.01074.13381.6650
H63.10721.98861.01074.13381.6650

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.290 C2 C1 H4 179.654
C2 N3 H5 113.641 C2 N3 H6 113.641
H5 N3 H6 110.910
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.183      
2 C 0.030      
3 N -0.632      
4 H 0.208      
5 H 0.289      
6 H 0.289      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.094 -1.342 0.000 1.731
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.814 1.691 0.000
y 1.691 -11.779 0.000
z 0.000 0.000 -16.636
Traceless
 xyz
x -5.606 1.691 0.000
y 1.691 6.446 0.000
z 0.000 0.000 -0.840
Polar
3z2-r2-1.679
x2-y2-8.035
xy1.691
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.198 -0.120 0.000
y -0.120 6.292 0.000
z 0.000 0.000 2.556


<r2> (average value of r2) Å2
<r2> 43.947
(<r2>)1/2 6.629