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: HF/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A"
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-20.499328
Energy at 298.15K 
HF Energy-20.499328
Nuclear repulsion energy44.657371
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 HF/CEP-121G*
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 3372 3046 38.27      
2 A 3268 2953 27.18      
3 A 3248 2934 73.18      
4 A 3243 2930 85.18      
5 A 3198 2889 27.16      
6 A 3176 2870 43.89      
7 A 3131 2828 63.03      
8 A 1635 1477 2.63      
9 A 1628 1471 4.97      
10 A 1616 1460 0.21      
11 A 1582 1429 0.54      
12 A 1548 1398 0.99      
13 A 1481 1338 5.13      
14 A 1384 1250 0.24      
15 A 1266 1143 0.55      
16 A 1144 1033 1.08      
17 A 1131 1021 0.55      
18 A 978 883 0.43      
19 A 929 839 0.06      
20 A 811 733 0.32      
21 A 484 437 44.91      
22 A 386 349 4.29      
23 A 266 240 0.14      
24 A 154 139 1.12      

Unscaled Zero Point Vibrational Energy (zpe) 20528.0 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 18545.0 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 HF/CEP-121G*
ABC
1.09053 0.29602 0.25706

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.324 -0.303 -0.062
C2 0.092 0.561 0.067
C3 -1.215 -0.240 -0.046
H4 -2.081 0.411 0.051
H5 -1.281 -0.745 -1.007
H6 -1.278 -0.997 0.733
H7 0.107 1.085 1.027
H8 0.115 1.336 -0.697
H9 2.280 0.142 -0.289
H10 1.332 -1.302 0.348

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.51042.54043.48122.80642.80832.14332.13401.07881.0796
C21.51041.53762.17842.17852.17901.09341.08882.25612.2549
C32.54041.53761.08761.08741.08812.15782.16293.52482.7873
H43.48122.17841.08761.75951.75832.48892.49754.38283.8298
H52.80642.17851.08741.75951.75823.06802.52573.73982.9953
H62.80832.17901.08811.75831.75822.51773.07073.87372.6556
H72.14331.09342.15782.48893.06802.51771.74182.70982.7670
H82.13401.08882.16292.49752.52573.07071.74182.50633.0875
H91.07882.25613.52484.38283.73983.87372.70982.50631.8416
H101.07962.25492.78733.82982.99532.65562.76703.08751.8416

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 112.912 C1 C2 H7 109.762
C1 C2 H8 109.297 C2 C1 H9 120.312
C2 C1 H10 120.143 C2 C3 H4 111.004
C2 C3 H5 111.020 C2 C3 H6 111.010
C3 C2 H7 109.028 C3 C2 H8 109.696
H4 C3 H5 107.998 H4 C3 H6 107.831
H5 C3 H6 107.836 H7 C2 H8 105.905
H9 C1 H10 117.120
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.399      
2 C -0.190      
3 C -0.510      
4 H 0.165      
5 H 0.157      
6 H 0.149      
7 H 0.147      
8 H 0.148      
9 H 0.173      
10 H 0.161      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.085 0.210 0.213 0.311
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.263 0.086 0.072
y 0.086 -20.878 -0.595
z 0.072 -0.595 -21.610
Traceless
 xyz
x -0.019 0.086 0.072
y 0.086 0.559 -0.595
z 0.072 -0.595 -0.540
Polar
3z2-r2-1.080
x2-y2-0.385
xy0.086
xz0.072
yz-0.595


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.427 -0.084 -0.108
y -0.084 4.939 -0.118
z -0.108 -0.118 4.368


<r2> (average value of r2) Å2
<r2> 52.426
(<r2>)1/2 7.241