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: B2PLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A"
Energy calculated at B2PLYP/6-31G
 hartrees
Energy at 0K-118.232857
Energy at 298.15K 
HF Energy-118.147482
Nuclear repulsion energy75.481723
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 B2PLYP/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3290 3290 23.56      
2 A 3180 3180 18.16      
3 A 3143 3143 37.47      
4 A 3138 3138 45.28      
5 A 3061 3061 29.95      
6 A 3059 3059 24.49      
7 A 2972 2972 39.27      
8 A 1568 1568 4.76      
9 A 1561 1561 6.22      
10 A 1544 1544 1.98      
11 A 1518 1518 0.59      
12 A 1472 1472 2.58      
13 A 1410 1410 1.92      
14 A 1316 1316 0.28      
15 A 1217 1217 0.56      
16 A 1117 1117 0.23      
17 A 1095 1095 0.98      
18 A 957 957 2.23      
19 A 902 902 0.17      
20 A 791 791 1.77      
21 A 491 491 50.18      
22 A 382 382 3.92      
23 A 248 248 0.04      
24 A 113 113 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 19772.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19772.2 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 B2PLYP/6-31G
ABC
1.08344 0.29601 0.25700

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.309 -0.294 -0.030
C2 0.079 0.560 0.057
C3 -1.231 -0.248 -0.041
H4 -2.105 0.408 0.026
H5 -1.282 -0.788 -0.992
H6 -1.296 -0.985 0.768
H7 0.074 1.126 1.007
H8 0.102 1.323 -0.733
H9 2.260 0.120 -0.345
H10 1.303 -1.309 0.354

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49952.54033.48632.80822.81032.14872.13721.08451.0856
C21.49951.54252.19042.18482.18671.10561.09912.26072.2537
C32.54031.54251.09521.09511.09612.16512.17353.52372.7753
H43.48632.19041.09521.77341.77332.49522.50744.39093.8305
H52.80822.18481.09511.77341.77143.08212.53803.71422.9612
H62.81032.18671.09611.77331.77142.52703.08753.88652.6512
H72.14871.10562.16512.49523.08212.52701.75172.76042.8047
H82.13721.09912.17352.50742.53803.08751.75172.50123.0912
H91.08452.26073.52374.39093.71423.88652.76042.50121.8576
H101.08562.25372.77533.83052.96122.65122.80473.09121.8576

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 113.238 C1 C2 H7 110.216
C1 C2 H8 109.695 C2 C1 H9 121.225
C2 C1 H10 120.491 C2 C3 H4 111.149
C2 C3 H5 110.710 C2 C3 H6 110.799
C3 C2 H7 108.565 C3 C2 H8 109.588
H4 C3 H5 108.129 H4 C3 H6 108.050
H5 C3 H6 107.881 H7 C2 H8 105.223
H9 C1 H10 117.735
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.255      
2 C -0.283      
3 C -0.406      
4 H 0.133      
5 H 0.140      
6 H 0.135      
7 H 0.144      
8 H 0.140      
9 H 0.126      
10 H 0.126      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.118 0.169 0.109 0.233
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.061 0.041 -0.130
y 0.041 -20.708 -0.452
z -0.130 -0.452 -21.504
Traceless
 xyz
x 0.045 0.041 -0.130
y 0.041 0.575 -0.452
z -0.130 -0.452 -0.620
Polar
3z2-r2-1.240
x2-y2-0.354
xy0.041
xz-0.130
yz-0.452


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.113 -0.149 -0.200
y -0.149 4.621 -0.203
z -0.200 -0.203 3.842


<r2> (average value of r2) Å2
<r2> 59.840
(<r2>)1/2 7.736