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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-132.659330
Energy at 298.15K-132.661531
HF Energy-132.659330
Nuclear repulsion energy59.695268
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 B1B95/6-311G**
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' 3580 3437 16.43      
2 A' 3512 3372 89.08      
3 A' 2274 2184 110.80      
4 A' 1644 1579 32.86      
5 A' 1104 1060 16.46      
6 A' 615 590 201.66      
7 A' 510 490 128.10      
8 A' 444 426 10.41      
9 A" 3668 3522 33.55      
10 A" 1203 1155 0.05      
11 A" 716 688 36.81      
12 A" 380 364 8.84      

Unscaled Zero Point Vibrational Energy (zpe) 9824.8 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 9432.8 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 B1B95/6-311G**
ABC
10.32515 0.31464 0.30788

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.039 1.360 0.000
C2 0.000 0.159 0.000
N3 0.111 -1.181 0.000
H4 -0.082 2.419 0.000
H5 -0.230 -1.632 0.835
H6 -0.230 -1.632 -0.835

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20102.54551.05973.11173.1117
C21.20101.34532.26081.98951.9895
N32.54551.34533.60511.00821.0082
H41.05972.26083.60514.13824.1382
H53.11171.98951.00824.13821.6696
H63.11171.98951.00824.13821.6696

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.133 C2 C1 H4 179.560
C2 N3 H5 114.658 C2 N3 H6 114.658
H5 N3 H6 111.791
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.021      
2 C 0.017      
3 N -0.576      
4 H 0.112      
5 H 0.234      
6 H 0.234      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.092 -1.554 0.000 1.899
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.157 1.785 0.000
y 1.785 -11.904 0.000
z 0.000 0.000 -16.841
Traceless
 xyz
x -5.785 1.785 0.000
y 1.785 6.596 0.000
z 0.000 0.000 -0.811
Polar
3z2-r2-1.622
x2-y2-8.254
xy1.785
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.184 -0.059 0.000
y -0.059 6.553 0.000
z 0.000 0.000 2.494


<r2> (average value of r2) Å2
<r2> 43.973
(<r2>)1/2 6.631