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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: HSEh1PBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/3-21G
 hartrees
Energy at 0K-131.808539
Energy at 298.15K-131.810934
HF Energy-131.808539
Nuclear repulsion energy59.647628
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 HSEh1PBE/3-21G
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' 3579 3448 30.93      
2 A' 3534 3404 93.91      
3 A' 2305 2220 101.91      
4 A' 1693 1631 55.83      
5 A' 1155 1113 17.62      
6 A' 734 707 131.32      
7 A' 573 552 7.49      
8 A' 378 364 414.11      
9 A" 3679 3544 48.72      
10 A" 1188 1144 10.16      
11 A" 903 870 29.05      
12 A" 485 467 21.76      

Unscaled Zero Point Vibrational Energy (zpe) 10102.7 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 9731.9 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 HSEh1PBE/3-21G
ABC
11.16291 0.31437 0.30576

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.001 1.367 0.000
C2 0.000 0.158 0.000
N3 0.000 -1.171 0.000
H4 0.003 2.428 0.000
H5 0.000 -1.693 0.866
H6 0.000 -1.693 -0.866

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20942.53801.06013.18083.1808
C21.20941.32862.26962.04372.0437
N32.53801.32863.59821.01121.0112
H41.06012.26963.59824.21084.2108
H53.18082.04371.01124.21081.7311
H63.18082.04371.01124.21081.7311

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 179.966 C2 C1 H4 179.732
C2 N3 H5 121.129 C2 N3 H6 121.129
H5 N3 H6 117.743
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.035      
2 C 0.134      
3 N -1.025      
4 H 0.262      
5 H 0.332      
6 H 0.332      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.007 -2.064 0.000 2.064
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.202 0.014 0.000
y 0.014 -10.878 0.000
z 0.000 0.000 -16.399
Traceless
 xyz
x -6.563 0.014 0.000
y 0.014 7.422 0.000
z 0.000 0.000 -0.859
Polar
3z2-r2-1.718
x2-y2-9.324
xy0.014
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.015 -0.003 0.000
y -0.003 5.968 0.000
z 0.000 0.000 1.709


<r2> (average value of r2) Å2
<r2> 43.972
(<r2>)1/2 6.631