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

using model chemistry: B3LYP/CEP-31G*

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/CEP-31G*
 hartrees
Energy at 0K-18.615327
Energy at 298.15K-18.616048
Nuclear repulsion energy26.933122
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/CEP-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 A1 3465 3346 60.67      
2 A1 3153 3045 6.58      
3 A1 2012 1943 3.50      
4 A1 1445 1396 0.19      
5 A1 1085 1047 2.40      
6 B1 661 638 88.26      
7 B1 448 432 86.92      
8 B1 440 425 7.03      
9 B2 3244 3133 5.72      
10 B2 1000 966 0.15      
11 B2 603 583 86.12      
12 B2 306 296 2.44      

Unscaled Zero Point Vibrational Energy (zpe) 8931.2 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 8624.8 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/CEP-31G*
ABC
9.41886 0.30186 0.29248

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.261
C2 0.000 0.000 0.141
C3 0.000 0.000 1.408
H4 0.000 0.942 -1.818
H5 0.000 -0.942 -1.818
H6 0.000 0.000 2.481

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6
C11.40252.66921.09451.09453.7416
C21.40251.26682.17412.17412.3392
C32.66921.26683.36093.36091.0724
H41.09452.17413.36091.88464.4006
H51.09452.17413.36091.88464.4006
H63.74162.33921.07244.40064.4006

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 120.581
C2 C1 H5 120.581 C2 C3 H6 180.000
H4 C1 H5 118.838
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.386      
2 C -0.286      
3 C -0.169      
4 H 0.211      
5 H 0.211      
6 H 0.418      


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 -0.175 0.175
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.152 0.000 0.000
y 0.000 -18.107 0.000
z 0.000 0.000 -12.376
Traceless
 xyz
x -4.911 0.000 0.000
y 0.000 -1.843 0.000
z 0.000 0.000 6.754
Polar
3z2-r213.508
x2-y2-2.045
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.096 0.000 0.000
y 0.000 2.543 0.000
z 0.000 0.000 8.700


<r2> (average value of r2) Å2
<r2> 39.454
(<r2>)1/2 6.281