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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B2PLYP/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/6-311+G(3df,2p)
 hartrees
Energy at 0K-132.625120
Energy at 298.15K-132.627263
HF Energy-132.454485
Nuclear repulsion energy59.488102
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 B2PLYP/6-311+G(3df,2p)
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' 3563 3563 18.55      
2 A' 3491 3491 91.32      
3 A' 2216 2216 121.87      
4 A' 1650 1650 27.29      
5 A' 1078 1078 15.84      
6 A' 626 626 184.36      
7 A' 500 500 111.71      
8 A' 421 421 7.17      
9 A" 3653 3653 42.77      
10 A" 1203 1203 0.32      
11 A" 688 688 41.09      
12 A" 361 361 8.46      

Unscaled Zero Point Vibrational Energy (zpe) 9724.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9724.3 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 B2PLYP/6-311+G(3df,2p)
ABC
10.32256 0.31205 0.30543

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 1.366 0.000
C2 0.000 0.161 0.000
N3 0.090 -1.188 0.000
H4 -0.032 2.425 0.000
H5 -0.261 -1.634 0.834
H6 -0.261 -1.634 -0.834

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20532.55661.05953.12343.1234
C21.20531.35232.26481.99611.9961
N32.55661.35233.61591.00871.0087
H41.05952.26483.61594.15024.1502
H53.12341.99611.00874.15021.6682
H63.12341.99611.00874.15021.6682

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.782 C2 C1 H4 179.558
C2 N3 H5 114.651 C2 N3 H6 114.651
H5 N3 H6 111.558
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.012      
2 C 0.162      
3 N -0.843      
4 H 0.232      
5 H 0.219      
6 H 0.219      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.029 -1.391 0.000 1.730
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.824 1.945 0.000
y 1.945 -12.720 0.000
z 0.000 0.000 -17.389
Traceless
 xyz
x -5.769 1.945 0.000
y 1.945 6.386 0.000
z 0.000 0.000 -0.617
Polar
3z2-r2-1.234
x2-y2-8.103
xy1.945
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.747 -0.034 0.000
y -0.034 7.246 0.000
z 0.000 0.000 3.701


<r2> (average value of r2) Å2
<r2> 44.651
(<r2>)1/2 6.682