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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B97D3/6-31G(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 B97D3/6-31G(2df,p)
 hartrees
Energy at 0K-132.607663
Energy at 298.15K-132.609634
HF Energy-132.607663
Nuclear repulsion energy59.243522
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 B97D3/6-31G(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' 3478 3478 63.69      
2 A' 3454 3454 14.71      
3 A' 2214 2214 79.60      
4 A' 1610 1610 18.90      
5 A' 1065 1065 9.44      
6 A' 660 660 191.38      
7 A' 476 476 63.53      
8 A' 308 308 30.77      
9 A" 3538 3538 18.40      
10 A" 1182 1182 0.02      
11 A" 643 643 33.91      
12 A" 345 345 4.54      

Unscaled Zero Point Vibrational Energy (zpe) 9486.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9486.2 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 B97D3/6-31G(2df,p)
ABC
10.07386 0.30978 0.30354

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.002 1.371 0.000
C2 0.000 0.159 0.000
N3 0.090 -1.194 0.000
H4 -0.017 2.435 0.000
H5 -0.299 -1.629 0.832
H6 -0.299 -1.629 -0.832

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21202.56681.06383.12713.1271
C21.21201.35622.27571.99451.9945
N32.56681.35623.63041.01611.0161
H41.06382.27573.63044.15734.1573
H53.12711.99451.01614.15731.6644
H63.12711.99451.01614.15731.6644

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.311 C2 C1 H4 179.301
C2 N3 H5 113.664 C2 N3 H6 113.664
H5 N3 H6 109.969
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.199      
2 C 0.122      
3 N -0.623      
4 H 0.169      
5 H 0.266      
6 H 0.266      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.115 -1.424 0.000 1.808
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.475 2.010 0.000
y 2.010 -12.048 0.000
z 0.000 0.000 -16.564
Traceless
 xyz
x -5.170 2.010 0.000
y 2.010 5.972 0.000
z 0.000 0.000 -0.802
Polar
3z2-r2-1.604
x2-y2-7.427
xy2.010
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.244 0.086 0.000
y 0.086 6.595 0.000
z 0.000 0.000 2.612


<r2> (average value of r2) Å2
<r2> 44.277
(<r2>)1/2 6.654