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 C3H7 (n-Propyl radical)

using model chemistry: MP2/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A"
Energy calculated at MP2/SDD
 hartrees
Energy at 0K-117.841938
Energy at 298.15K 
HF Energy-117.597698
Nuclear repulsion energy74.551848
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 MP2/SDD
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3278 3165 28.43      
2 A 3153 3044 26.61      
3 A 3127 3018 50.99      
4 A 3121 3013 53.18      
5 A 3069 2963 25.08      
6 A 3019 2915 33.07      
7 A 2988 2884 44.17      
8 A 1545 1491 5.27      
9 A 1539 1485 8.03      
10 A 1524 1471 2.72      
11 A 1507 1455 1.85      
12 A 1453 1402 4.82      
13 A 1398 1349 0.94      
14 A 1299 1254 0.36      
15 A 1212 1170 0.70      
16 A 1098 1060 0.84      
17 A 1079 1041 1.51      
18 A 938 906 2.57      
19 A 888 857 0.44      
20 A 783 756 3.16      
21 A 480 463 65.73      
22 A 366 353 7.90      
23 A 239 231 0.27      
24 A 130 126 1.54      

Unscaled Zero Point Vibrational Energy (zpe) 19616.5 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 18935.9 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 MP2/SDD
ABC
1.04761 0.28836 0.25109

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.326 -0.297 -0.034
C2 0.076 0.573 0.069
C3 -1.246 -0.257 -0.049
H4 -2.130 0.401 0.030
H5 -1.286 -0.779 -1.021
H6 -1.304 -1.015 0.754
H7 0.069 1.119 1.039
H8 0.101 1.345 -0.723
H9 2.263 0.101 -0.434
H10 1.351 -1.284 0.439

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.52732.57253.52662.83402.83852.17632.16171.09351.0945
C21.52731.56552.21272.20772.21291.11211.10672.29392.2829
C32.57251.56551.10521.10441.10532.19202.19953.54822.8344
H43.52662.21271.10521.79181.79202.52332.53704.42773.8886
H52.83402.20771.10441.79181.79063.11152.55473.70343.0560
H62.83852.21291.10531.79201.79062.55373.11913.92222.6872
H72.17631.11212.19202.52333.11152.55371.77682.83192.7883
H82.16171.10672.19952.53702.55473.11911.77682.51133.1343
H91.09352.29393.54824.42773.70343.92222.83192.51131.8739
H101.09452.28292.83443.88863.05602.68722.78833.13431.8739

picture of n-Propyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 112.558 C1 C2 H7 110.092
C1 C2 H8 109.275 C2 C1 H9 121.264
C2 C1 H10 120.186 C2 C3 H4 110.711
C2 C3 H5 110.369 C2 C3 H6 110.721
C3 C2 H7 108.717 C3 C2 H8 109.597
H4 C3 H5 108.378 H4 C3 H6 108.322
H5 C3 H6 108.256 H7 C2 H8 106.413
H9 C1 H10 117.831
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability