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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B3LYP/6-311G**

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/6-311G**
 hartrees
Energy at 0K-132.726897
Energy at 298.15K-132.729058
HF Energy-132.726897
Nuclear repulsion energy59.515005
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/6-311G**
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' 3532 3414 10.03      
2 A' 3490 3374 90.02      
3 A' 2249 2175 104.45      
4 A' 1644 1590 30.68      
5 A' 1086 1050 14.94      
6 A' 613 593 208.76      
7 A' 499 483 118.85      
8 A' 428 414 10.73      
9 A" 3613 3493 27.59      
10 A" 1203 1163 0.06      
11 A" 708 685 36.52      
12 A" 370 358 8.77      

Unscaled Zero Point Vibrational Energy (zpe) 9717.8 cm-1
Scaled (by 0.9668) Zero Point Vibrational Energy (zpe) 9395.2 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 B3LYP/6-311G**
ABC
10.29145 0.31267 0.30594

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.024 1.364 0.000
C2 0.000 0.161 0.000
N3 0.099 -1.186 0.000
H4 -0.056 2.424 0.000
H5 -0.245 -1.638 0.837
H6 -0.245 -1.638 -0.837

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20302.55311.06073.12473.1247
C21.20301.35102.26361.99981.9998
N32.55311.35103.61361.01171.0117
H41.06072.26363.61364.15224.1522
H53.12471.99981.01174.15221.6743
H63.12471.99981.01174.15221.6743

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.956 C2 C1 H4 179.414
C2 N3 H5 114.893 C2 N3 H6 114.893
H5 N3 H6 111.675
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.028      
2 C 0.008      
3 N -0.535      
4 H 0.104      
5 H 0.225      
6 H 0.225      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.096 -1.552 0.000 1.900
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.249 1.855 0.000
y 1.855 -12.132 0.000
z 0.000 0.000 -16.981
Traceless
 xyz
x -5.693 1.855 0.000
y 1.855 6.483 0.000
z 0.000 0.000 -0.791
Polar
3z2-r2-1.581
x2-y2-8.117
xy1.855
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.194 -0.003 0.000
y -0.003 6.617 0.000
z 0.000 0.000 2.519


<r2> (average value of r2) Å2
<r2> 44.285
(<r2>)1/2 6.655