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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: PBEPBE/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 PBEPBE/aug-cc-pVTZ
 hartrees
Energy at 0K-132.571860
Energy at 298.15K-132.573853
HF Energy-132.571860
Nuclear repulsion energy59.239213
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 PBEPBE/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' 3447 3425 5.28      
2 A' 3413 3391 94.06      
3 A' 2183 2168 129.93      
4 A' 1584 1574 23.46      
5 A' 1070 1063 15.31      
6 A' 580 576 166.16      
7 A' 468 465 99.54      
8 A' 360 358 21.97      
9 A" 3527 3504 34.86      
10 A" 1157 1150 0.26      
11 A" 651 647 40.13      
12 A" 346 344 8.64      

Unscaled Zero Point Vibrational Energy (zpe) 9393.0 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 9332.0 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 PBEPBE/aug-cc-pVTZ
ABC
10.19073 0.31004 0.30334

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 1.371 0.000
C2 0.000 0.158 0.000
N3 0.070 -1.191 0.000
H4 0.010 2.439 0.000
H5 -0.285 -1.640 0.841
H6 -0.285 -1.640 -0.841

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21312.56341.06803.14093.1409
C21.21311.35152.28112.00602.0060
N32.56341.35153.63121.01771.0177
H41.06802.28113.63124.17594.1759
H53.14092.00601.01774.17591.6829
H63.14092.00601.01774.17591.6829

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.482 C2 C1 H4 179.377
C2 N3 H5 114.981 C2 N3 H6 114.981
H5 N3 H6 111.540
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.319      
2 C 0.890      
3 N -0.306      
4 H 0.469      
5 H 0.134      
6 H 0.134      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.990 -1.553 0.000 1.842
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.717 1.977 0.000
y 1.977 -12.763 0.000
z 0.000 0.000 -17.396
Traceless
 xyz
x -5.637 1.977 0.000
y 1.977 6.293 0.000
z 0.000 0.000 -0.656
Polar
3z2-r2-1.312
x2-y2-7.954
xy1.977
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.090 0.049 0.000
y 0.049 7.875 0.000
z 0.000 0.000 4.029


<r2> (average value of r2) Å2
<r2> 44.906
(<r2>)1/2 6.701