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All results from a given calculation for C3H3 (Propargyl radical)

using model chemistry: B3LYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B1
Energy calculated at B3LYP/3-21G*
 hartrees
Energy at 0K-115.366815
Energy at 298.15K-115.367702
HF Energy-115.366815
Nuclear repulsion energy53.344847
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/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3490 3357 50.08      
2 A1 3156 3037 1.87      
3 A1 2042 1964 5.74      
4 A1 1505 1448 1.13      
5 A1 1093 1052 2.48      
6 B1 706 679 66.33      
7 B1 514 495 49.97      
8 B1 408 393 10.62      
9 B2 3244 3120 2.53      
10 B2 1072 1031 0.12      
11 B2 685 659 56.95      
12 B2 351 338 6.46      

Unscaled Zero Point Vibrational Energy (zpe) 9132.2 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 8785.2 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/3-21G*
ABC
9.68640 0.31825 0.30812

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.253
C2 0.000 0.000 0.115
C3 0.000 0.000 1.341
H4 0.000 0.929 -1.812
H5 0.000 -0.929 -1.812
H6 0.000 0.000 2.402

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6
C11.36802.59381.08451.08453.6551
C21.36801.22592.13952.13952.2871
C32.59381.22593.28713.28711.0612
H41.08452.13953.28711.85844.3155
H51.08452.13953.28711.85844.3155
H63.65512.28711.06124.31554.3155

picture of Propargyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 180.000 C2 C1 H4 121.040
C2 C1 H5 121.040 C2 C3 H6 180.000
H4 C1 H5 117.921
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.409      
2 C 0.038      
3 C -0.319      
4 H 0.218      
5 H 0.218      
6 H 0.254      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.054 0.054
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.878 0.000 0.000
y 0.000 -18.113 0.000
z 0.000 0.000 -12.393
Traceless
 xyz
x -4.625 0.000 0.000
y 0.000 -1.977 0.000
z 0.000 0.000 6.602
Polar
3z2-r213.205
x2-y2-1.765
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.226 0.000 0.000
y 0.000 2.139 0.000
z 0.000 0.000 7.385


<r2> (average value of r2) Å2
<r2> 44.841
(<r2>)1/2 6.696