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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: PBE1PBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/6-31+G**
 hartrees
Energy at 0K-132.534027
Energy at 298.15K-132.536122
HF Energy-132.534027
Nuclear repulsion energy59.401933
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 PBE1PBE/6-31+G**
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' 3598 3437 25.09      
2 A' 3515 3358 102.44      
3 A' 2268 2167 142.58      
4 A' 1645 1571 37.36      
5 A' 1113 1064 20.39      
6 A' 572 547 174.98      
7 A' 485 464 186.29      
8 A' 406 387 28.60      
9 A" 3700 3535 52.98      
10 A" 1192 1138 0.22      
11 A" 689 658 55.20      
12 A" 375 359 9.28      

Unscaled Zero Point Vibrational Energy (zpe) 9779.6 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 9342.4 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 PBE1PBE/6-31+G**
ABC
10.38874 0.31137 0.30446

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.045 1.368 0.000
C2 0.000 0.158 0.000
N3 0.110 -1.185 0.000
H4 -0.091 2.433 0.000
H5 -0.204 -1.648 0.841
H6 -0.204 -1.648 -0.841

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21132.55821.06533.13583.1358
C21.21131.34752.27662.00292.0029
N32.55821.34753.62341.01041.0104
H41.06532.27663.62344.16834.1683
H53.13582.00291.01044.16831.6820
H63.13582.00291.01044.16831.6820

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.453 C2 C1 H4 179.699
C2 N3 H5 115.557 C2 N3 H6 115.557
H5 N3 H6 112.686
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.227      
2 C -0.377      
3 N -0.727      
4 H 0.228      
5 H 0.324      
6 H 0.324      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.058 -1.586 0.000 1.906
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.022 1.764 0.000
y 1.764 -12.039 0.000
z 0.000 0.000 -17.184
Traceless
 xyz
x -6.410 1.764 0.000
y 1.764 7.064 0.000
z 0.000 0.000 -0.654
Polar
3z2-r2-1.309
x2-y2-8.983
xy1.764
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.910 -0.158 0.000
y -0.158 7.172 0.000
z 0.000 0.000 2.836


<r2> (average value of r2) Å2
<r2> 44.632
(<r2>)1/2 6.681