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All results from a given calculation for C3H5 (Allyl radical)

using model chemistry: QCISD(TQ)/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at QCISD(TQ)/CEP-31G*
 hartrees
Energy at 0K-19.702518
Energy at 298.15K-19.706600
HF Energy-19.320551
Nuclear repulsion energy35.327882
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 QCISD(TQ)/CEP-31G*
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 3239 3239        
2 A1 3154 3154        
3 A1 3134 3134        
4 A1 1520 1520        
5 A1 1267 1267        
6 A1 1016 1016        
7 A1 412 412        
8 A2 673 673        
9 A2 526 526        
10 B1 983 983        
11 B1 707 707        
12 B1 512 512        
13 B2 3232 3232        
14 B2 3134 3134        
15 B2 1517 1517        
16 B2 1399 1399        
17 B2 1191 1191        
18 B2 905 905        

Unscaled Zero Point Vibrational Energy (zpe) 14260.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14260.5 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 QCISD(TQ)/CEP-31G*
ABC
1.71750 0.33114 0.27762

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(TQ)/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.468
H2 0.000 0.000 1.570
C3 0.000 1.254 -0.206
C4 0.000 -1.254 -0.206
H5 0.000 2.202 0.352
H6 0.000 -2.202 0.352
H7 0.000 1.301 -1.305
H8 0.000 -1.301 -1.305

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.10161.42351.42352.20522.20522.19952.1995
H21.10162.17382.17382.51662.51663.15583.1558
C31.42352.17382.50741.10013.50051.10042.7809
C41.42352.17382.50743.50051.10012.78091.1004
H52.20522.51661.10013.50054.40411.88633.8749
H62.20522.51663.50051.10014.40413.87491.8863
H72.19953.15581.10042.78091.88633.87492.6014
H82.19953.15582.78091.10043.87491.88632.6014

picture of Allyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 121.273 C1 C3 H7 120.720
C1 C4 H6 121.273 C1 C4 H8 120.720
H2 C1 C3 118.273 H2 C1 C4 118.273
C3 C1 C4 123.453 H5 C3 H7 118.007
H6 C4 H8 118.007
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability