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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: PBE1PBE/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-132.576916
Energy at 298.15K-132.579092
HF Energy-132.576916
Nuclear repulsion energy59.687041
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 PBE1PBE/aug-cc-pVTZ
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' 3572 3435 17.83      
2 A' 3494 3360 99.94      
3 A' 2262 2174 136.65      
4 A' 1636 1573 28.19      
5 A' 1103 1061 18.23      
6 A' 597 574 162.39      
7 A' 503 484 131.85      
8 A' 441 424 9.49      
9 A" 3660 3519 45.20      
10 A" 1196 1150 0.26      
11 A" 708 680 39.89      
12 A" 374 360 9.86      

Unscaled Zero Point Vibrational Energy (zpe) 9772.7 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 9396.4 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 PBE1PBE/aug-cc-pVTZ
ABC
10.37093 0.31460 0.30775

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.027 1.360 0.000
C2 0.000 0.159 0.000
N3 0.099 -1.181 0.000
H4 -0.059 2.422 0.000
H5 -0.237 -1.634 0.836
H6 -0.237 -1.634 -0.836

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20142.54481.06183.11603.1160
C21.20141.34432.26321.99281.9928
N32.54481.34433.60651.00841.0084
H41.06182.26323.60654.14494.1449
H53.11601.99281.00844.14491.6723
H63.11601.99281.00844.14491.6723

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.056 C2 C1 H4 179.578
C2 N3 H5 115.032 C2 N3 H6 115.032
H5 N3 H6 112.027
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.411      
2 C 0.967      
3 N -0.348      
4 H 0.493      
5 H 0.150      
6 H 0.150      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.972 -1.512 0.000 1.797
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.645 1.769 0.000
y 1.769 -12.380 0.000
z 0.000 0.000 -17.224
Traceless
 xyz
x -5.843 1.769 0.000
y 1.769 6.555 0.000
z 0.000 0.000 -0.712
Polar
3z2-r2-1.424
x2-y2-8.265
xy1.769
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.880 -0.059 0.000
y -0.059 7.396 0.000
z 0.000 0.000 3.856


<r2> (average value of r2) Å2
<r2> 44.278
(<r2>)1/2 6.654