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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: wB97X-D/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-132.686567
Energy at 298.15K-132.688751
HF Energy-132.686567
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/6-311+G(3df,2p)
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' 3591 3591 22.37      
2 A' 3478 3478 94.77      
3 A' 2267 2267 138.48      
4 A' 1644 1644 31.33      
5 A' 1095 1095 19.39      
6 A' 598 598 171.41      
7 A' 506 506 121.34      
8 A' 454 454 22.82      
9 A" 3681 3681 45.37      
10 A" 1198 1198 0.26      
11 A" 701 701 40.89      
12 A" 375 375 11.11      

Unscaled Zero Point Vibrational Energy (zpe) 9793.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9793.3 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/6-311+G(3df,2p)
ABC
10.35424 0.31441 0.30757

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.038 1.359 0.000
C2 0.000 0.162 0.000
N3 0.108 -1.182 0.000
H4 -0.080 2.420 0.000
H5 -0.226 -1.635 0.836
H6 -0.226 -1.635 -0.836

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.19812.54591.06153.11423.1142
C21.19811.34852.25961.99431.9943
N32.54591.34853.60721.00781.0078
H41.06152.25963.60724.14244.1424
H53.11421.99431.00784.14241.6729
H63.11421.99431.00784.14241.6729

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.197 C2 C1 H4 179.519
C2 N3 H5 114.871 C2 N3 H6 114.871
H5 N3 H6 112.192
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.062      
2 C 0.113      
3 N -0.828      
4 H 0.217      
5 H 0.218      
6 H 0.218      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.992 -1.463 0.000 1.767
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.688 1.740 0.000
y 1.740 -12.219 0.000
z 0.000 0.000 -17.169
Traceless
 xyz
x -5.994 1.740 0.000
y 1.740 6.710 0.000
z 0.000 0.000 -0.715
Polar
3z2-r2-1.431
x2-y2-8.469
xy1.740
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.758 -0.100 0.000
y -0.100 7.201 0.000
z 0.000 0.000 3.726


<r2> (average value of r2) Å2
<r2> 44.253
(<r2>)1/2 6.652