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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B2PLYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/TZVP
 hartrees
Energy at 0K-132.601297
Energy at 298.15K-132.603338
HF Energy-132.452375
Nuclear repulsion energy59.458766
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 B2PLYP/TZVP
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' 3566 3403 19.16      
2 A' 3511 3351 92.54      
3 A' 2230 2128 108.19      
4 A' 1659 1583 34.63      
5 A' 1080 1030 15.34      
6 A' 633 604 226.97      
7 A' 486 464 109.76      
8 A' 364 348 18.31      
9 A" 3658 3491 36.24      
10 A" 1208 1153 0.00      
11 A" 662 632 45.65      
12 A" 336 321 7.22      

Unscaled Zero Point Vibrational Energy (zpe) 9695.7 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 9253.5 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 B2PLYP/TZVP
ABC
10.32341 0.31175 0.30507

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.011 1.367 0.000
C2 0.000 0.161 0.000
N3 0.071 -1.190 0.000
H4 0.002 2.426 0.000
H5 -0.282 -1.631 0.836
H6 -0.282 -1.631 -0.836

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20632.55791.05953.12623.1262
C21.20631.35282.26571.99721.9972
N32.55791.35283.61731.00881.0088
H41.05952.26573.61734.15244.1524
H53.12621.99721.00884.15241.6721
H63.12621.99721.00884.15241.6721

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.471 C2 C1 H4 178.954
C2 N3 H5 114.714 C2 N3 H6 114.714
H5 N3 H6 111.942
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.429      
2 C 0.120      
3 N -0.331      
4 H 0.158      
5 H 0.241      
6 H 0.241      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.169 -1.398 0.000 1.822
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.654 2.147 0.000
y 2.147 -12.633 0.000
z 0.000 0.000 -17.222
Traceless
 xyz
x -5.726 2.147 0.000
y 2.147 6.305 0.000
z 0.000 0.000 -0.579
Polar
3z2-r2-1.158
x2-y2-8.021
xy2.147
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.595 0.066 0.000
y 0.066 6.827 0.000
z 0.000 0.000 2.733


<r2> (average value of r2) Å2
<r2> 44.600
(<r2>)1/2 6.678