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

using model chemistry: CCSD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at CCSD/6-31G
 hartrees
Energy at 0K-116.705122
Energy at 298.15K-116.709343
HF Energy-116.427864
Nuclear repulsion energy64.094853
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 CCSD/6-31G
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 3221 3038 31.43      
2 A1 3127 2949 1.67      
3 A1 3111 2934 21.91      
4 A1 1552 1464 1.74      
5 A1 1288 1215 0.26      
6 A1 1043 984 0.09      
7 A1 435 411 0.01      
8 A2 759 716 0.00      
9 A2 540 509 0.00      
10 B1 978 922 24.94      
11 B1 771 727 83.24      
12 B1 522 492 11.29      
13 B2 3217 3034 10.47      
14 B2 3120 2942 13.27      
15 B2 1530 1442 0.73      
16 B2 1457 1374 3.21      
17 B2 1202 1133 0.05      
18 B2 961 906 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 14416.1 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 13595.8 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 CCSD/6-31G
ABC
1.78616 0.33518 0.28222

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.452
H2 0.000 0.000 1.549
C3 0.000 1.245 -0.199
C4 0.000 -1.245 -0.199
H5 0.000 2.184 0.356
H6 0.000 -2.184 0.356
H7 0.000 1.315 -1.291
H8 0.000 -1.315 -1.291

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.09701.40491.40492.18642.18642.18382.1838
H21.09702.14632.14632.48882.48883.13013.1301
C31.40492.14632.48961.09153.47381.09412.7833
C41.40492.14632.48963.47381.09152.78331.0941
H52.18642.48881.09153.47384.36861.86263.8681
H62.18642.48883.47381.09154.36863.86811.8626
H72.18383.13011.09412.78331.86263.86812.6308
H82.18383.13012.78331.09413.86811.86262.6308

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 121.777 C1 C3 H7 121.320
C1 C4 H6 121.777 C1 C4 H8 121.320
H2 C1 C3 117.622 H2 C1 C4 117.622
C3 C1 C4 124.757 H5 C3 H7 116.903
H6 C4 H8 116.903
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability