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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-132.516369
Energy at 298.15K-132.518199
HF Energy-132.516369
Nuclear repulsion energy58.955612
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' 3450 3403 7.37      
2 A' 3439 3392 77.95      
3 A' 2206 2175 80.41      
4 A' 1592 1570 23.50      
5 A' 1078 1063 10.39      
6 A' 623 615 226.68      
7 A' 468 461 60.07      
8 A' 249 245 38.03      
9 A" 3539 3491 19.58      
10 A" 1164 1148 0.13      
11 A" 608 600 33.55      
12 A" 332 328 3.61      

Unscaled Zero Point Vibrational Energy (zpe) 9373.8 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 9245.4 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 PBEPBEultrafine/6-31G**
ABC
9.99829 0.30698 0.30064

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 0.030 1.379 0.000
C2 0.000 0.157 0.000
N3 0.066 -1.199 0.000
H4 -0.007 2.449 0.000
H5 -0.319 -1.634 0.840
H6 -0.319 -1.634 -0.840

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.22172.57791.07093.14723.1472
C21.22171.35792.29162.00422.0042
N32.57791.35793.64861.02131.0213
H41.07092.29163.64864.18024.1802
H53.14722.00421.02134.18021.6797
H63.14722.00421.02134.18021.6797

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.782 C2 C1 H4 176.562
C2 N3 H5 114.033 C2 N3 H6 114.033
H5 N3 H6 110.637
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 -0.254      
2 C 0.274      
3 N -0.724      
4 H 0.142      
5 H 0.281      
6 H 0.281      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.301 -1.486 0.000 1.975
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.591 2.144 0.000
y 2.144 -11.933 0.000
z 0.000 0.000 -16.565
Traceless
 xyz
x -5.342 2.144 0.000
y 2.144 6.145 0.000
z 0.000 0.000 -0.803
Polar
3z2-r2-1.606
x2-y2-7.658
xy2.144
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.771 0.194 0.000
y 0.194 6.599 0.000
z 0.000 0.000 2.259


<r2> (average value of r2) Å2
<r2> 44.617
(<r2>)1/2 6.680