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: B3LYP/6-311G*

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/6-311G*
 hartrees
Energy at 0K-116.030855
Energy at 298.15K-116.031560
Nuclear repulsion energy53.413406
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/6-311G*
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 3459 3342 46.93      
2 A1 3141 3035 4.61      
3 A1 2012 1944 2.72      
4 A1 1468 1418 1.03      
5 A1 1090 1054 2.06      
6 B1 668 646 49.59      
7 B1 420 406 50.01      
8 B1 373 361 10.29      
9 B2 3229 3120 3.64      
10 B2 1041 1006 0.29      
11 B2 598 578 55.23      
12 B2 348 337 4.27      

Unscaled Zero Point Vibrational Energy (zpe) 8923.7 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 8623.0 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/6-311G*
ABC
9.69566 0.31916 0.30899

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.251
C2 0.000 0.000 0.116
C3 0.000 0.000 1.338
H4 0.000 0.929 -1.810
H5 0.000 -0.929 -1.810
H6 0.000 0.000 2.402

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6
C11.36712.58951.08381.08383.6531
C21.36711.22242.13812.13812.2859
C32.58951.22243.28233.28231.0636
H41.08382.13813.28231.85754.3129
H51.08382.13813.28231.85754.3129
H63.65312.28591.06364.31294.3129

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 121.029
C2 C1 H5 121.029 C2 C3 H6 180.000
H4 C1 H5 117.943
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.522     -0.476
2 C 0.042     0.238
3 C -0.239     -0.495
4 H 0.232     0.206
5 H 0.232     0.206
6 H 0.255     0.321


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 -0.047 0.047
CHELPG        
AIM        
ESP 0.000 0.000 -0.055 0.055


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.152 0.000 0.000
y 0.000 -18.308 0.000
z 0.000 0.000 -12.590
Traceless
 xyz
x -4.703 0.000 0.000
y 0.000 -1.937 0.000
z 0.000 0.000 6.640
Polar
3z2-r213.280
x2-y2-1.844
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.234 0.000 0.000
y 0.000 2.792 0.000
z 0.000 0.000 8.169


<r2> (average value of r2) Å2
<r2> 44.894
(<r2>)1/2 6.700