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-pVDZ

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-pVDZ
 hartrees
Energy at 0K-115.961032
Energy at 298.15K-115.961834
Nuclear repulsion energy53.086198
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-pVDZ
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 3482 3360 62.74      
2 A1 3156 3045 1.38      
3 A1 2021 1950 3.20      
4 A1 1430 1380 1.10      
5 A1 1104 1065 2.35      
6 B1 668 645 43.30      
7 B1 459 442 44.79      
8 B1 414 399 4.67      
9 B2 3262 3148 0.28      
10 B2 1011 975 0.30      
11 B2 629 607 45.87      
12 B2 350 338 4.36      

Unscaled Zero Point Vibrational Energy (zpe) 8991.6 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 8676.9 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 B3PW91/cc-pVDZ
ABC
9.49726 0.31571 0.30556

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.257
C2 0.000 0.000 0.113
C3 0.000 0.000 1.347
H4 0.000 0.938 -1.816
H5 0.000 -0.938 -1.816
H6 0.000 0.000 2.419

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6
C11.37042.60401.09211.09213.6764
C21.37041.23372.14522.14522.3060
C32.60401.23373.29903.29901.0724
H41.09212.14523.29901.87684.3378
H51.09212.14523.29901.87684.3378
H63.67642.30601.07244.33784.3378

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 120.765
C2 C1 H5 120.765 C2 C3 H6 180.000
H4 C1 H5 118.470
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.081      
2 C 0.271      
3 C -0.371      
4 H 0.083      
5 H 0.083      
6 H 0.016      


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 -0.065 0.065
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.751 0.000 0.000
y 0.000 -18.049 0.000
z 0.000 0.000 -12.440
Traceless
 xyz
x -4.506 0.000 0.000
y 0.000 -1.954 0.000
z 0.000 0.000 6.460
Polar
3z2-r212.920
x2-y2-1.701
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> 45.112
(<r2>)1/2 6.717