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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B3LYP/STO-3G

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/STO-3G
 hartrees
Energy at 0K-130.973532
Energy at 298.15K-130.975621
HF Energy-130.973532
Nuclear repulsion energy58.098060
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/STO-3G
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' 3695 3297 161.17      
2 A' 3531 3151 1.99      
3 A' 2435 2173 7.44      
4 A' 1795 1602 8.75      
5 A' 1081 964 8.79      
6 A' 726 648 162.65      
7 A' 609 543 38.45      
8 A' 414 369 10.58      
9 A" 3708 3309 0.08      
10 A" 1324 1182 0.43      
11 A" 766 683 14.63      
12 A" 366 327 1.79      

Unscaled Zero Point Vibrational Energy (zpe) 10224.4 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 9124.2 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/STO-3G
ABC
8.91012 0.29878 0.29364

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.034 1.384 0.000
C2 0.000 0.180 0.000
N3 0.083 -1.232 0.000
H4 0.054 2.461 0.000
H5 -0.422 -1.612 0.845
H6 -0.422 -1.612 -0.845

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20492.61651.07713.14693.1469
C21.20491.41422.28192.02602.0260
N32.61651.41423.69311.05591.0559
H41.07712.28193.69314.18754.1875
H53.14692.02601.05594.18751.6903
H63.14692.02601.05594.18751.6903

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 174.979 C2 C1 H4 179.410
C2 N3 H5 109.359 C2 N3 H6 109.359
H5 N3 H6 106.332
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.156      
2 C 0.012      
3 N -0.361      
4 H 0.110      
5 H 0.197      
6 H 0.197      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.577 -0.743 0.000 1.744
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.414 2.642 0.000
y 2.642 -12.610 0.000
z 0.000 0.000 -15.532
Traceless
 xyz
x -3.343 2.642 0.000
y 2.642 3.863 0.000
z 0.000 0.000 -0.520
Polar
3z2-r2-1.040
x2-y2-4.804
xy2.642
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.529 0.290 0.000
y 0.290 4.242 0.000
z 0.000 0.000 1.118


<r2> (average value of r2) Å2
<r2> 44.898
(<r2>)1/2 6.701