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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: LSDA/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/Def2TZVPP
 hartrees
Energy at 0K-131.998952
Energy at 298.15K-132.000916
HF Energy-131.998952
Nuclear repulsion energy59.672201
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 LSDA/Def2TZVPP
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' 3479 3479 23.04      
2 A' 3413 3413 114.29      
3 A' 2224 2224 137.43      
4 A' 1554 1554 34.72      
5 A' 1117 1117 17.70      
6 A' 497 497 29.59      
7 A' 447 447 273.90      
8 A' 387 387 25.95      
9 A" 3567 3567 56.91      
10 A" 1124 1124 0.27      
11 A" 668 668 42.48      
12 A" 362 362 11.89      

Unscaled Zero Point Vibrational Energy (zpe) 9419.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9419.3 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 LSDA/Def2TZVPP
ABC
10.47019 0.31546 0.30795

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.016 1.361 0.000
C2 0.000 0.154 0.000
N3 0.078 -1.174 0.000
H4 -0.041 2.431 0.000
H5 -0.206 -1.654 0.850
H6 -0.206 -1.654 -0.850

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20772.53691.07013.13843.1384
C21.20771.32982.27782.00802.0080
N32.53691.32983.60691.01681.0168
H41.07012.27783.60694.17574.1757
H53.13842.00801.01684.17571.7001
H63.13842.00801.01684.17571.7001

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.377 C2 C1 H4 179.414
C2 N3 H5 117.050 C2 N3 H6 117.050
H5 N3 H6 113.449
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.268      
2 C -0.158      
3 N -0.254      
4 H 0.311      
5 H 0.184      
6 H 0.184      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.853 -1.828 0.000 2.018
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.771 1.549 0.000
y 1.549 -12.033 0.000
z 0.000 0.000 -17.167
Traceless
 xyz
x -6.171 1.549 0.000
y 1.549 6.937 0.000
z 0.000 0.000 -0.765
Polar
3z2-r2-1.531
x2-y2-8.738
xy1.549
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.128 -0.020 0.000
y -0.020 7.411 0.000
z 0.000 0.000 3.246


<r2> (average value of r2) Å2
<r2> 44.266
(<r2>)1/2 6.653