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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B3LYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/6-31G*
 hartrees
Energy at 0K-132.678036
Energy at 298.15K-132.680032
HF Energy-132.678036
Nuclear repulsion energy59.234592
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 B3LYP/6-31G*
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' 3513 3373 23.74      
2 A' 3505 3366 59.70      
3 A' 2265 2175 80.04      
4 A' 1674 1607 26.83      
5 A' 1088 1045 11.40      
6 A' 671 645 241.31      
7 A' 483 464 71.93      
8 A' 316 304 36.03      
9 A" 3594 3451 19.17      
10 A" 1220 1172 0.12      
11 A" 650 624 33.95      
12 A" 353 339 3.41      

Unscaled Zero Point Vibrational Energy (zpe) 9665.5 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 9281.8 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 B3LYP/6-31G*
ABC
10.12709 0.30957 0.30319

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.046 1.370 0.000
C2 0.000 0.162 0.000
N3 0.123 -1.192 0.000
H4 -0.106 2.433 0.000
H5 -0.240 -1.641 0.835
H6 -0.240 -1.641 -0.835

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20942.56721.06443.13103.1310
C21.20941.35872.27382.00122.0012
N32.56721.35873.63161.01551.0155
H41.06442.27383.63164.16094.1609
H53.13102.00121.01554.16091.6699
H63.13102.00121.01554.16091.6699

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.978 C2 C1 H4 178.935
C2 N3 H5 114.122 C2 N3 H6 114.122
H5 N3 H6 110.615
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.303      
2 C 0.283      
3 N -0.839      
4 H 0.177      
5 H 0.341      
6 H 0.341      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.253 -1.392 0.000 1.873
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.798 1.948 0.000
y 1.948 -11.863 0.000
z 0.000 0.000 -16.550
Traceless
 xyz
x -5.591 1.948 0.000
y 1.948 6.311 0.000
z 0.000 0.000 -0.719
Polar
3z2-r2-1.439
x2-y2-7.935
xy1.948
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.694 -0.068 0.000
y -0.068 6.303 0.000
z 0.000 0.000 2.181


<r2> (average value of r2) Å2
<r2> 44.341
(<r2>)1/2 6.659