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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: LSDA/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-131.998528
Energy at 298.15K-132.000491
HF Energy-131.998528
Nuclear repulsion energy59.665336
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/aug-cc-pVTZ
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' 3472 3440 19.78      
2 A' 3406 3374 116.38      
3 A' 2219 2198 148.01      
4 A' 1554 1540 32.63      
5 A' 1115 1104 18.24      
6 A' 493 488 25.96      
7 A' 445 440 257.65      
8 A' 387 384 20.54      
9 A" 3560 3526 57.92      
10 A" 1123 1113 0.02      
11 A" 663 657 38.75      
12 A" 360 356 11.54      

Unscaled Zero Point Vibrational Energy (zpe) 9398.7 cm-1
Scaled (by 0.9906) Zero Point Vibrational Energy (zpe) 9310.3 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/aug-cc-pVTZ
ABC
10.46644 0.31540 0.30788

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 1.361 0.000
C2 0.000 0.154 0.000
N3 0.077 -1.174 0.000
H4 -0.038 2.431 0.000
H5 -0.207 -1.654 0.851
H6 -0.207 -1.654 -0.851

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20712.53701.07023.13923.1392
C21.20711.33062.27732.00932.0093
N32.53701.33063.60711.01721.0172
H41.07022.27733.60714.17664.1766
H53.13922.00931.01724.17661.7011
H63.13922.00931.01724.17661.7011

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.372 C2 C1 H4 179.433
C2 N3 H5 117.081 C2 N3 H6 117.081
H5 N3 H6 113.485
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.375      
2 C 1.103      
3 N -0.360      
4 H 0.369      
5 H 0.132      
6 H 0.132      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.826 -1.754 0.000 1.939
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.892 1.538 0.000
y 1.538 -12.311 0.000
z 0.000 0.000 -17.250
Traceless
 xyz
x -6.112 1.538 0.000
y 1.538 6.760 0.000
z 0.000 0.000 -0.648
Polar
3z2-r2-1.296
x2-y2-8.581
xy1.538
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.038 -0.031 0.000
y -0.031 7.853 0.000
z 0.000 0.000 3.988


<r2> (average value of r2) Å2
<r2> 44.376
(<r2>)1/2 6.661