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/cc-pVQZ

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/cc-pVQZ
 hartrees
Energy at 0K-118.219122
Energy at 298.15K 
HF Energy-117.683434
Nuclear repulsion energy76.288446
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/cc-pVQZ
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 3319 3148 7.92      
2 A 3206 3040 12.42      
3 A 3170 3007 21.13      
4 A 3165 3002 25.60      
5 A 3095 2935 14.48      
6 A 3076 2918 20.66      
7 A 3020 2864 23.24      
8 A 1522 1443 3.49      
9 A 1515 1437 6.86      
10 A 1491 1414 0.90      
11 A 1484 1407 3.05      
12 A 1415 1342 2.68      
13 A 1371 1300 1.66      
14 A 1284 1218 0.15      
15 A 1190 1128 0.24      
16 A 1112 1055 0.19      
17 A 1062 1007 1.03      
18 A 934 886 1.37      
19 A 904 857 0.19      
20 A 763 724 0.86      
21 A 479 454 47.43      
22 A 372 353 2.64      
23 A 256 243 0.04      
24 A 121 115 0.39      

Unscaled Zero Point Vibrational Energy (zpe) 19662.5 cm-1
Scaled (by 0.9484) Zero Point Vibrational Energy (zpe) 18647.9 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/cc-pVQZ
ABC
1.10001 0.30464 0.26322

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.290 -0.295 -0.031
C2 0.078 0.558 0.048
C3 -1.214 -0.244 -0.035
H4 -2.086 0.402 0.025
H5 -1.265 -0.795 -0.971
H6 -1.270 -0.964 0.779
H7 0.085 1.128 0.984
H8 0.103 1.308 -0.744
H9 2.252 0.126 -0.268
H10 1.255 -1.319 0.303

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48412.50383.44762.76702.76722.12342.11801.07671.0777
C21.48411.52272.17012.16132.16111.09611.09082.23882.2305
C32.50381.52271.08721.08761.08822.14582.15543.49292.7139
H43.44762.17011.08721.76071.76072.48162.49144.35683.7689
H52.76702.16131.08761.76071.75833.05602.51883.70222.8720
H62.76722.16111.08821.76071.75832.50053.06093.83272.5942
H72.12341.09612.14582.48163.05602.50051.73802.69632.7965
H82.11801.09082.15542.49142.51883.06091.73802.49813.0538
H91.07672.23883.49294.35683.70223.83272.69632.49811.8460
H101.07772.23052.71393.76892.87202.59422.79653.05381.8460

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 112.748 C1 C2 H7 109.852
C1 C2 H8 109.740 C2 C1 H9 121.090
C2 C1 H10 120.242 C2 C3 H4 111.410
C2 C3 H5 110.682 C2 C3 H6 110.626
C3 C2 H7 108.951 C3 C2 H8 110.018
H4 C3 H5 108.110 H4 C3 H6 108.062
H5 C3 H6 107.823 H7 C2 H8 105.258
H9 C1 H10 117.931
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability