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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: LSDA/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/6-311G*
 hartrees
Energy at 0K-131.969410
Energy at 298.15K-131.971284
HF Energy-131.969410
Nuclear repulsion energy59.595134
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 LSDA/6-311G*
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' 3475 3418 15.78      
2 A' 3403 3348 92.90      
3 A' 2232 2196 111.79      
4 A' 1612 1586 43.09      
5 A' 1119 1100 14.57      
6 A' 505 497 68.53      
7 A' 457 449 262.96      
8 A' 296 291 55.48      
9 A" 3560 3502 36.61      
10 A" 1155 1136 1.59      
11 A" 646 636 38.87      
12 A" 369 363 11.93      

Unscaled Zero Point Vibrational Energy (zpe) 9414.1 cm-1
Scaled (by 0.9837) Zero Point Vibrational Energy (zpe) 9260.6 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 LSDA/6-311G*
ABC
10.43783 0.31467 0.30721

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 1.363 0.000
C2 0.000 0.154 0.000
N3 0.067 -1.176 0.000
H4 -0.023 2.435 0.000
H5 -0.225 -1.654 0.851
H6 -0.225 -1.654 -0.851

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20902.53981.07203.14283.1428
C21.20901.33162.28092.01072.0107
N32.53981.33163.61181.01851.0185
H41.07202.28093.61184.18124.1812
H53.14282.01071.01854.18121.7013
H63.14282.01071.01854.18121.7013

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.089 C2 C1 H4 178.706
C2 N3 H5 117.033 C2 N3 H6 117.033
H5 N3 H6 113.282
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.209      
2 C 0.154      
3 N -0.903      
4 H 0.237      
5 H 0.361      
6 H 0.361      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.034 -1.834 0.000 2.105
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.575 1.766 0.000
y 1.766 -11.487 0.000
z 0.000 0.000 -16.878
Traceless
 xyz
x -6.392 1.766 0.000
y 1.766 7.239 0.000
z 0.000 0.000 -0.847
Polar
3z2-r2-1.694
x2-y2-9.088
xy1.766
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.148 0.055 0.000
y 0.055 6.770 0.000
z 0.000 0.000 2.478


<r2> (average value of r2) Å2
<r2> 44.137
(<r2>)1/2 6.644