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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: PBEPBEultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-132.507598
Energy at 298.15K-132.509441
HF Energy-132.507598
Nuclear repulsion energy58.906803
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 PBEPBEultrafine/6-31G*
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' 3441 3384 60.16      
2 A' 3422 3366 16.67      
3 A' 2204 2167 78.25      
4 A' 1623 1597 24.62      
5 A' 1077 1060 9.29      
6 A' 649 638 244.21      
7 A' 468 461 48.38      
8 A' 257 252 42.32      
9 A" 3509 3451 16.72      
10 A" 1184 1164 0.15      
11 A" 605 595 32.14      
12 A" 330 324 3.73      

Unscaled Zero Point Vibrational Energy (zpe) 9383.7 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 9228.9 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 PBEPBEultrafine/6-31G*
ABC
9.93082 0.30660 0.30035

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.084 1.377 0.000
C2 0.000 0.158 0.000
N3 0.028 -1.201 0.000
H4 0.047 2.449 0.000
H5 -0.375 -1.625 0.840
H6 -0.375 -1.625 -0.840

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.22182.57891.07213.15113.1511
C21.22181.35972.29092.00642.0064
N32.57891.35973.64991.02321.0232
H41.07212.29093.64994.18074.1807
H53.15112.00641.02324.18071.6792
H63.15112.00641.02324.18071.6792

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 174.856 C2 C1 H4 174.036
C2 N3 H5 113.962 C2 N3 H6 113.962
H5 N3 H6 110.283
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.313      
2 C 0.274      
3 N -0.822      
4 H 0.178      
5 H 0.342      
6 H 0.342      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.443 -1.413 0.000 2.019
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.500 2.368 0.000
y 2.368 -12.078 0.000
z 0.000 0.000 -16.578
Traceless
 xyz
x -5.172 2.368 0.000
y 2.368 5.962 0.000
z 0.000 0.000 -0.790
Polar
3z2-r2-1.579
x2-y2-7.422
xy2.368
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.773 0.373 0.000
y 0.373 6.530 0.000
z 0.000 0.000 2.228


<r2> (average value of r2) Å2
<r2> 44.674
(<r2>)1/2 6.684