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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: BLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-130.909662
Energy at 298.15K-130.911556
HF Energy-130.909662
Nuclear repulsion energy57.500048
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 BLYP/STO-3G
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' 3595 3326 145.01      
2 A' 3353 3102 2.84      
3 A' 2329 2155 6.43      
4 A' 1748 1617 7.12      
5 A' 1047 968 14.50      
6 A' 716 662 135.04      
7 A' 528 489 33.36      
8 A' 357 331 8.29      
9 A" 3529 3265 1.05      
10 A" 1294 1197 0.67      
11 A" 696 643 14.90      
12 A" 330 306 2.40      

Unscaled Zero Point Vibrational Energy (zpe) 9760.5 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 9030.4 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 BLYP/STO-3G
ABC
8.56273 0.29295 0.28829

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.154 1.390 0.000
C2 0.000 0.181 0.000
N3 -0.006 -1.248 0.000
H4 0.259 2.469 0.000
H5 -0.569 -1.579 0.848
H6 -0.569 -1.579 -0.848

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21852.64321.08433.17113.1711
C21.21851.42962.30262.03492.0349
N32.64321.42963.72701.07011.0701
H41.08432.30263.72704.21794.2179
H53.17112.03491.07014.21791.6962
H63.17112.03491.07014.21791.6962

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 172.991 C2 C1 H4 178.263
C2 N3 H5 108.131 C2 N3 H6 108.131
H5 N3 H6 104.847
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.153      
2 C 0.002      
3 N -0.338      
4 H 0.106      
5 H 0.191      
6 H 0.191      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.647 -0.669 0.000 1.777
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.957 3.026 0.000
y 3.026 -13.049 0.000
z 0.000 0.000 -15.608
Traceless
 xyz
x -2.629 3.026 0.000
y 3.026 3.234 0.000
z 0.000 0.000 -0.605
Polar
3z2-r2-1.211
x2-y2-3.909
xy3.026
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.659 0.629 0.000
y 0.629 4.368 0.000
z 0.000 0.000 1.161


<r2> (average value of r2) Å2
<r2> 45.572
(<r2>)1/2 6.751