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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-132.633096
Energy at 298.15K-132.635193
HF Energy-132.633096
Nuclear repulsion energy59.467351
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 B1B95/6-31+G**
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' 3600 3444 24.49      
2 A' 3519 3366 97.35      
3 A' 2271 2172 142.83      
4 A' 1645 1573 36.82      
5 A' 1110 1062 21.11      
6 A' 574 549 176.73      
7 A' 486 465 182.17      
8 A' 408 390 25.18      
9 A" 3703 3542 50.73      
10 A" 1190 1138 0.22      
11 A" 689 659 53.16      
12 A" 376 360 8.88      

Unscaled Zero Point Vibrational Energy (zpe) 9784.5 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 9359.9 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 B1B95/6-31+G**
ABC
10.41717 0.31197 0.30507

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.047 1.367 0.000
C2 0.000 0.158 0.000
N3 0.112 -1.184 0.000
H4 -0.094 2.429 0.000
H5 -0.204 -1.646 0.839
H6 -0.204 -1.646 -0.839

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20942.55591.06333.13203.1320
C21.20941.34722.27272.00092.0009
N32.55591.34723.61911.00881.0088
H41.06332.27273.61914.16264.1626
H53.13202.00091.00884.16261.6786
H63.13202.00091.00884.16261.6786

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.463 C2 C1 H4 179.685
C2 N3 H5 115.520 C2 N3 H6 115.520
H5 N3 H6 112.605
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.176      
2 C -0.313      
3 N -0.714      
4 H 0.213      
5 H 0.319      
6 H 0.319      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.057 -1.561 0.000 1.885
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.913 1.754 0.000
y 1.754 -12.100 0.000
z 0.000 0.000 -17.120
Traceless
 xyz
x -6.303 1.754 0.000
y 1.754 6.916 0.000
z 0.000 0.000 -0.613
Polar
3z2-r2-1.226
x2-y2-8.813
xy1.754
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.887 -0.161 0.000
y -0.161 7.149 0.000
z 0.000 0.000 2.822


<r2> (average value of r2) Å2
<r2> 44.536
(<r2>)1/2 6.674