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 (cyclopropenyl radical)

using model chemistry: B3LYP/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 2E"
Energy calculated at B3LYP/Def2TZVPP
 hartrees
Energy at 0K-115.989347
Energy at 298.15K 
HF Energy-115.989347
Nuclear repulsion energy58.204595
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/Def2TZVPP
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 3364 3238 2.11      
2 A1 3222 3102 3.75      
3 A1 1590 1530 1.86      
4 A1 1020 982 47.63      
5 A1 845 814 18.54      
6 A2 650i 626i 0.00      
7 B1 917 883 6.83      
8 B1 509i 490i 143.37      
9 B2 3321 3197 53.23      
10 B2 1105 1064 5.60      
11 B2 934 899 11.25      
12 B2 539 518 290.90      

Unscaled Zero Point Vibrational Energy (zpe) 7849.1 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 7555.5 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/Def2TZVPP
ABC
1.11963 0.87338 0.49065

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.754
C2 0.000 0.728 -0.383
C3 0.000 -0.728 -0.383
H4 0.000 0.000 1.830
H5 0.000 1.672 -0.883
H6 0.000 -1.672 -0.883

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6
C11.34981.34981.07542.34052.3405
C21.34981.45512.32891.06922.4516
C31.34981.45512.32892.45161.0692
H41.07542.32892.32893.18683.1868
H52.34051.06922.45163.18683.3448
H62.34052.45161.06923.18683.3448

picture of cyclopropenyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 14.413 C1 C3 H5 69.160
C1 C4 C3 18.204 C1 C4 H6 31.654
H2 C1 C3 65.234 H2 C1 C4 147.383
C3 C1 C4 147.383 C3 C4 H6 13.450
C4 C3 H5 83.573
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.081      
2 C -0.245      
3 C -0.245      
4 H 0.175      
5 H 0.198      
6 H 0.198      


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 0.717 0.717
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.250 0.000 0.000
y 0.000 -16.900 0.000
z 0.000 0.000 -15.983
Traceless
 xyz
x -3.809 0.000 0.000
y 0.000 1.217 0.000
z 0.000 0.000 2.592
Polar
3z2-r25.183
x2-y2-3.351
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.390 0.000 0.000
y 0.000 6.113 0.000
z 0.000 0.000 4.913


<r2> (average value of r2) Å2
<r2> 33.512
(<r2>)1/2 5.789