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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B2PLYP/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 B2PLYP/6-31G**
 hartrees
Energy at 0K-132.546509
Energy at 298.15K-132.548482
HF Energy-132.403922
Nuclear repulsion energy59.199678
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 B2PLYP/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' 3576 3576 11.29      
2 A' 3534 3534 79.48      
3 A' 2246 2246 72.88      
4 A' 1666 1666 27.08      
5 A' 1084 1084 10.72      
6 A' 679 679 237.34      
7 A' 482 482 75.03      
8 A' 307 307 27.21      
9 A" 3674 3674 24.31      
10 A" 1218 1218 0.03      
11 A" 634 634 35.91      
12 A" 339 339 2.41      

Unscaled Zero Point Vibrational Energy (zpe) 9719.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9719.0 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 B2PLYP/6-31G**
ABC
10.13807 0.30878 0.30252

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.039 1.373 0.000
C2 0.000 0.160 0.000
N3 0.119 -1.195 0.000
H4 -0.096 2.433 0.000
H5 -0.251 -1.634 0.832
H6 -0.251 -1.634 -0.832

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21322.57271.06133.12703.1270
C21.21321.36052.27431.99381.9938
N32.57271.36053.63401.01121.0112
H41.06132.27433.63404.15384.1538
H53.12701.99381.01124.15381.6643
H63.12701.99381.01124.15381.6643

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.830 C2 C1 H4 178.804
C2 N3 H5 113.598 C2 N3 H6 113.598
H5 N3 H6 110.750
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.252      
2 C 0.253      
3 N -0.730      
4 H 0.162      
5 H 0.283      
6 H 0.283      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.263 -1.315 0.000 1.824
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.802 1.985 0.000
y 1.985 -12.068 0.000
z 0.000 0.000 -16.624
Traceless
 xyz
x -5.456 1.985 0.000
y 1.985 6.145 0.000
z 0.000 0.000 -0.689
Polar
3z2-r2-1.378
x2-y2-7.734
xy1.985
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.715 -0.040 0.000
y -0.040 6.208 0.000
z 0.000 0.000 2.190


<r2> (average value of r2) Å2
<r2> 44.441
(<r2>)1/2 6.666