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/TZVP

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/TZVP
 hartrees
Energy at 0K-116.048230
Energy at 298.15K-116.049060
HF Energy-116.048230
Nuclear repulsion energy53.483594
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/TZVP
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 3469 3349 65.43      
2 A1 3146 3037 2.02      
3 A1 2018 1948 0.88      
4 A1 1462 1411 1.44      
5 A1 1092 1054 1.79      
6 B1 697 672 54.68      
7 B1 462 446 51.00      
8 B1 409 395 11.89      
9 B2 3236 3124 0.77      
10 B2 1035 999 0.40      
11 B2 639 617 59.22      
12 B2 355 343 6.98      

Unscaled Zero Point Vibrational Energy (zpe) 9009.2 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 8697.4 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 B3LYP/TZVP
ABC
9.68888 0.32008 0.30985

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.250
C2 0.000 0.000 0.115
C3 0.000 0.000 1.337
H4 0.000 0.929 -1.805
H5 0.000 -0.929 -1.805
H6 0.000 0.000 2.399

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6
C11.36482.58641.08221.08223.6484
C21.36481.22152.13282.13282.2836
C32.58641.22153.27583.27581.0621
H41.08222.13283.27581.85824.3048
H51.08222.13283.27581.85824.3048
H63.64842.28361.06214.30484.3048

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 120.851
C2 C1 H5 120.851 C2 C3 H6 180.000
H4 C1 H5 118.298
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability