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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-115.366817
Energy at 298.15K-115.367715
HF Energy-115.366817
Nuclear repulsion energy53.336095
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 3486 3364 50.06      
2 A1 3158 3047 1.86      
3 A1 2040 1969 5.78      
4 A1 1505 1452 1.12      
5 A1 1092 1054 2.49      
6 B1 704 680 66.28      
7 B1 517 499 50.20      
8 B1 409 395 10.48      
9 B2 3245 3131 2.52      
10 B2 1072 1034 0.12      
11 B2 687 663 57.00      
12 B2 352 340 6.43      

Unscaled Zero Point Vibrational Energy (zpe) 9133.5 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 8812.9 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
9.68101 0.31814 0.30802

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 2.403

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6
C11.36832.59431.08451.08453.6559
C21.36831.22602.13962.13962.2876
C32.59431.22603.28733.28731.0616
H41.08452.13963.28731.85894.3160
H51.08452.13963.28731.85894.3160
H63.65592.28761.06164.31604.3160

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 121.015
C2 C1 H5 121.015 C2 C3 H6 180.000
H4 C1 H5 117.971
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 0.000 0.000 -0.070 0.070


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.880 0.000 0.000
y 0.000 -18.113 0.000
z 0.000 0.000 -12.392
Traceless
 xyz
x -4.627 0.000 0.000
y 0.000 -1.977 0.000
z 0.000 0.000 6.604
Polar
3z2-r213.208
x2-y2-1.767
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 2.140 0.000
z 0.000 0.000 7.387


<r2> (average value of r2) Å2
<r2> 44.852
(<r2>)1/2 6.697