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: CID/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A"
Energy calculated at CID/3-21G*
 hartrees
Energy at 0K-117.249839
Energy at 298.15K 
HF Energy-116.981946
Nuclear repulsion energy75.291463
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 CID/3-21G*
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 3298 3069 17.28      
2 A 3194 2972 13.27      
3 A 3167 2947 30.44      
4 A 3160 2941 34.96      
5 A 3112 2896 13.12      
6 A 3097 2882 19.74      
7 A 3044 2832 25.75      
8 A 1611 1499 4.22      
9 A 1606 1495 5.85      
10 A 1589 1478 2.42      
11 A 1546 1439 0.80      
12 A 1502 1398 3.43      
13 A 1431 1332 0.64      
14 A 1360 1266 0.29      
15 A 1237 1151 0.67      
16 A 1129 1051 1.67      
17 A 1070 995 0.39      
18 A 970 902 2.09      
19 A 886 825 0.18      
20 A 799 743 2.23      
21 A 466 434 40.75      
22 A 384 358 7.99      
23 A 256 238 0.23      
24 A 128 119 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 20021.2 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 18629.7 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 CID/3-21G*
ABC
1.06369 0.29521 0.25627

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.310 -0.299 -0.039
C2 0.077 0.572 0.066
C3 -1.233 -0.255 -0.046
H4 -2.110 0.395 0.032
H5 -1.269 -0.776 -1.006
H6 -1.281 -1.000 0.754
H7 0.073 1.114 1.024
H8 0.096 1.332 -0.724
H9 2.252 0.107 -0.386
H10 1.317 -1.280 0.421

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.51272.54313.49012.79532.79842.15692.14481.08311.0842
C21.51271.55302.19452.18592.18841.10071.09582.26932.2572
C32.54311.55301.09411.09351.09452.17342.17783.52022.7880
H43.49012.19451.09411.77681.77622.50362.51334.39143.8343
H52.79532.18591.09351.77681.77453.08142.52733.68272.9965
H62.79842.18841.09451.77621.77452.52523.08513.87382.6339
H72.15691.10072.17342.50363.08142.52521.76102.78302.7644
H82.14481.09582.17782.51332.52733.08511.76102.50213.1023
H91.08312.26933.52024.39143.68273.87382.78302.50211.8578
H101.08422.25722.78803.83432.99652.63392.76443.10231.8578

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 112.096 C1 C2 H7 110.243
C1 C2 H8 109.580 C2 C1 H9 121.015
C2 C1 H10 119.824 C2 C3 H4 110.804
C2 C3 H5 110.159 C2 C3 H6 110.299
C3 C2 H7 108.776 C3 C2 H8 109.399
H4 C3 H5 108.629 H4 C3 H6 108.498
H5 C3 H6 108.387 H7 C2 H8 106.590
H9 C1 H10 118.007
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability