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: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A"
Energy calculated at CBS-Q
 hartrees
Energy at 0K-118.194548
Energy at 298.15K-118.188635
HF Energy-117.630396
Nuclear repulsion energy75.753947
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 CBS-Q
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' 3288 3288 19.39      
2 A' 3252 3252 58.67      
3 A' 3187 3187 22.13      
4 A' 3181 3181 55.13      
5 A' 1643 1643 2.40      
6 A' 1623 1623 0.22      
7 A' 1592 1592 0.50      
8 A' 1541 1541 0.34      
9 A' 1460 1460 3.53      
10 A' 1166 1166 1.93      
11 A' 1112 1112 0.98      
12 A' 953 953 0.19      
13 A' 546 546 35.90      
14 A' 351 351 8.99      
15 A" 3387 3387 28.77      
16 A" 3257 3257 71.08      
17 A" 3217 3217 13.43      
18 A" 1633 1633 4.14      
19 A" 1423 1423 0.29      
20 A" 1302 1302 0.56      
21 A" 954 954 0.64      
22 A" 791 791 1.37      
23 A" 269 269 0.00      
24 A" 139 139 1.43      

Unscaled Zero Point Vibrational Energy (zpe) 20633.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20633.9 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 CBS-Q
ABC
1.02786 0.29623 0.26529

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.346 -0.087 0.000
C2 0.000 0.582 0.000
C3 1.172 -0.415 0.000
H4 2.127 0.107 0.000
H5 1.140 -1.056 0.879
H6 1.140 -1.056 -0.879
H7 0.085 1.228 -0.873
H8 0.085 1.228 0.873
H9 -1.765 -0.466 0.919
H10 -1.765 -0.466 -0.919

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.50322.53913.47852.80932.80932.13102.13101.07901.0790
C21.50321.53852.17932.18072.18071.08941.08942.24892.2489
C32.53911.53851.08871.08841.08842.15472.15473.07733.0773
H43.47852.17931.08871.76071.76072.48742.48744.03964.0396
H52.80932.18071.08841.76071.75803.06592.51622.96423.4668
H62.80932.18071.08841.76071.75802.51623.06593.46682.9642
H72.13101.08942.15472.48743.06592.51621.74553.08312.5091
H82.13101.08942.15472.48742.51623.06591.74552.50913.0831
H91.07902.24893.07734.03962.96423.46683.08312.50911.8388
H101.07902.24893.07734.03963.46682.96422.50913.08311.8388

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 113.180 C1 C2 H7 109.525
C1 C2 H8 109.525 C2 C1 H9 120.246
C2 C1 H10 120.246 C2 C3 H4 110.942
C2 C3 H5 111.068 C2 C3 H6 111.068
C3 C2 H7 108.958 C3 C2 H8 108.958
H4 C3 H5 107.946 H4 C3 H6 107.946
H5 C3 H6 107.725 H7 C2 H8 106.472
H9 C1 H10 116.888
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability