return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B1
Energy calculated at B3PW91/cc-pVTZ
 hartrees
Energy at 0K-115.996910
Energy at 298.15K-115.997742
Nuclear repulsion energy53.517632
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 B3PW91/cc-pVTZ
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 3332 58.57      
2 A1 3150 3029 1.79      
3 A1 2010 1933 1.94      
4 A1 1450 1394 1.40      
5 A1 1095 1053 2.19      
6 B1 688 662 43.88      
7 B1 471 453 47.54      
8 B1 407 391 9.84      
9 B2 3242 3118 0.38      
10 B2 1024 985 0.88      
11 B2 636 611 50.56      
12 B2 355 341 6.41      

Unscaled Zero Point Vibrational Energy (zpe) 8995.9 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 8650.4 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 B3PW91/cc-pVTZ
ABC
9.68633 0.32060 0.31033

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.249
C2 0.000 0.000 0.115
C3 0.000 0.000 1.335
H4 0.000 0.929 -1.803
H5 0.000 -0.929 -1.803
H6 0.000 0.000 2.398

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6
C11.36312.58411.08211.08213.6468
C21.36311.22102.13102.13102.2837
C32.58411.22103.27333.27331.0627
H41.08212.13103.27331.85844.3029
H51.08212.13103.27331.85844.3029
H63.64682.28371.06274.30294.3029

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 120.829
C2 C1 H5 120.829 C2 C3 H6 180.000
H4 C1 H5 118.341
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.306      
2 C 0.079      
3 C -0.155      
4 H 0.125      
5 H 0.125      
6 H 0.131      


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 -0.115 0.115
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.002 0.000 0.000
y 0.000 -18.246 0.000
z 0.000 0.000 -12.568
Traceless
 xyz
x -4.595 0.000 0.000
y 0.000 -1.961 0.000
z 0.000 0.000 6.556
Polar
3z2-r213.113
x2-y2-1.756
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 44.695
(<r2>)1/2 6.685