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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: wB97X-D/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/Def2TZVPP
 hartrees
Energy at 0K-132.692930
Energy at 298.15K-132.695118
HF Energy-132.692930
Nuclear repulsion energy 
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 wB97X-D/Def2TZVPP
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' 3593 3432 23.88      
2 A' 3490 3333 95.11      
3 A' 2273 2171 130.29      
4 A' 1647 1573 31.25      
5 A' 1097 1048 19.01      
6 A' 605 577 185.60      
7 A' 511 488 125.64      
8 A' 455 434 21.24      
9 A" 3684 3519 43.28      
10 A" 1204 1150 0.03      
11 A" 703 672 42.31      
12 A" 375 358 10.65      

Unscaled Zero Point Vibrational Energy (zpe) 9817.0 cm-1
Scaled (by 0.9552) Zero Point Vibrational Energy (zpe) 9377.2 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 wB97X-D/Def2TZVPP
ABC
10.36431 0.31438 0.30755

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.043 1.359 0.000
C2 0.000 0.161 0.000
N3 0.113 -1.182 0.000
H4 -0.090 2.420 0.000
H5 -0.220 -1.634 0.836
H6 -0.220 -1.634 -0.836

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.19882.54631.06133.11323.1132
C21.19881.34832.26011.99281.9928
N32.54631.34833.60751.00691.0069
H41.06132.26013.60754.14124.1412
H53.11321.99281.00694.14121.6718
H63.11321.99281.00694.14121.6718

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.264 C2 C1 H4 179.509
C2 N3 H5 114.821 C2 N3 H6 114.821
H5 N3 H6 112.239
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.301      
2 C -0.019      
3 N -0.255      
4 H 0.266      
5 H 0.155      
6 H 0.155      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.008 -1.519 0.000 1.823
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.494 1.710 0.000
y 1.710 -12.108 0.000
z 0.000 0.000 -17.073
Traceless
 xyz
x -5.904 1.710 0.000
y 1.710 6.676 0.000
z 0.000 0.000 -0.772
Polar
3z2-r2-1.544
x2-y2-8.387
xy1.710
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.057 -0.099 0.000
y -0.099 6.991 0.000
z 0.000 0.000 3.177


<r2> (average value of r2) Å2
<r2> 44.167
(<r2>)1/2 6.646