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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: HF/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/aug-cc-pVDZ
 hartrees
Energy at 0K-131.871083
Energy at 298.15K-131.873513
HF Energy-131.871083
Nuclear repulsion energy59.749627
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 HF/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3760 3424 27.64      
2 A' 3639 3313 101.85      
3 A' 2399 2185 126.06      
4 A' 1759 1602 30.45      
5 A' 1126 1026 16.49      
6 A' 708 645 188.37      
7 A' 612 557 96.77      
8 A' 494 449 42.80      
9 A" 3859 3514 46.52      
10 A" 1302 1186 1.08      
11 A" 793 722 45.79      
12 A" 408 372 9.84      

Unscaled Zero Point Vibrational Energy (zpe) 10429.5 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 9497.1 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 HF/aug-cc-pVDZ
ABC
10.36777 0.31435 0.30786

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.088 1.355 0.000
C2 0.000 0.165 0.000
N3 0.153 -1.182 0.000
H4 -0.164 2.412 0.000
H5 -0.190 -1.627 0.827
H6 -0.190 -1.627 -0.827

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.19352.54861.05993.09633.0963
C21.19351.35572.25331.98261.9826
N32.54861.35573.60830.99970.9997
H41.05992.25333.60834.12304.1230
H53.09631.98260.99974.12301.6541
H63.09631.98260.99974.12301.6541

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.737 C2 C1 H4 179.937
C2 N3 H5 113.790 C2 N3 H6 113.790
H5 N3 H6 111.640
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.927      
2 C -0.371      
3 N -0.266      
4 H -0.339      
5 H 0.024      
6 H 0.024      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.067 -1.294 0.000 1.677
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.038 1.645 0.000
y 1.645 -12.276 0.000
z 0.000 0.000 -17.480
Traceless
 xyz
x -6.160 1.645 0.000
y 1.645 6.982 0.000
z 0.000 0.000 -0.823
Polar
3z2-r2-1.645
x2-y2-8.761
xy1.645
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.618 -0.187 0.000
y -0.187 6.756 0.000
z 0.000 0.000 3.629


<r2> (average value of r2) Å2
<r2> 44.328
(<r2>)1/2 6.658