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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: wB97X-D/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/6-311G**
 hartrees
Energy at 0K-132.673287
Energy at 298.15K-132.675505
HF Energy-132.673287
Nuclear repulsion energy 
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 wB97X-D/6-311G**
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' 3587 3431 19.92      
2 A' 3496 3344 88.48      
3 A' 2277 2178 110.82      
4 A' 1650 1578 35.27      
5 A' 1097 1050 16.91      
6 A' 615 589 207.21      
7 A' 521 499 120.51      
8 A' 457 437 22.77      
9 A" 3678 3518 34.32      
10 A" 1209 1156 0.04      
11 A" 715 684 37.21      
12 A" 378 362 9.71      

Unscaled Zero Point Vibrational Energy (zpe) 9839.9 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 9411.9 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 wB97X-D/6-311G**
ABC
10.27045 0.31355 0.30679

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.054 1.361 0.000
C2 0.000 0.161 0.000
N3 0.123 -1.183 0.000
H4 -0.109 2.421 0.000
H5 -0.215 -1.635 0.837
H6 -0.215 -1.635 -0.837

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20052.55031.06173.11433.1143
C21.20051.35042.26231.99321.9932
N32.55031.35043.61191.00931.0093
H41.06172.26233.61194.14254.1425
H53.11431.99321.00934.14251.6746
H63.11431.99321.00934.14251.6746

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.337 C2 C1 H4 179.552
C2 N3 H5 114.500 C2 N3 H6 114.500
H5 N3 H6 112.113
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.045      
2 C 0.029      
3 N -0.574      
4 H 0.117      
5 H 0.237      
6 H 0.237      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.102 -1.529 0.000 1.885
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.272 1.732 0.000
y 1.732 -11.845 0.000
z 0.000 0.000 -16.874
Traceless
 xyz
x -5.913 1.732 0.000
y 1.732 6.728 0.000
z 0.000 0.000 -0.815
Polar
3z2-r2-1.630
x2-y2-8.427
xy1.732
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.190 -0.110 0.000
y -0.110 6.525 0.000
z 0.000 0.000 2.498


<r2> (average value of r2) Å2
<r2> 44.104
(<r2>)1/2 6.641