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 C6H5NH2 (aniline)

using model chemistry: HF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-284.143515
Energy at 298.15K-284.151930
Nuclear repulsion energy273.439019
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/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 A1 3795 3426 54.24      
2 A1 3385 3055 12.00      
3 A1 3360 3033 9.95      
4 A1 3342 3017 13.71      
5 A1 1824 1646 106.68      
6 A1 1774 1601 119.53      
7 A1 1671 1509 94.82      
8 A1 1400 1264 110.87      
9 A1 1332 1202 19.34      
10 A1 1131 1021 0.00      
11 A1 1101 994 10.91      
12 A1 893 806 13.32      
13 A1 596 538 0.48      
14 A2 1145 1034 0.00      
15 A2 965 871 0.00      
16 A2 476 430 0.00      
17 A2 359 324 0.00      
18 B1 1175 1060 5.78      
19 B1 1049 947 40.14      
20 B1 891 805 109.64      
21 B1 805 726 40.86      
22 B1 593 535 3.45      
23 B1 322 290 382.27      
24 B1 249 224 51.77      
25 B2 3917 3535 35.70      
26 B2 3364 3037 41.94      
27 B2 3345 3019 0.64      
28 B2 1746 1576 15.80      
29 B2 1641 1481 2.23      
30 B2 1530 1381 0.45      
31 B2 1361 1229 3.16      
32 B2 1267 1144 17.71      
33 B2 1221 1102 16.89      
34 B2 1107 999 2.05      
35 B2 712 642 0.29      
36 B2 416 375 2.58      

Unscaled Zero Point Vibrational Energy (zpe) 27627.9 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 24937.0 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/3-21G*
ABC
0.19142 0.08758 0.06009

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.934
C2 0.000 1.197 0.216
C3 0.000 1.190 -1.164
C4 0.000 0.000 -1.871
C5 0.000 -1.190 -1.164
C6 0.000 -1.197 0.216
N7 0.000 0.000 2.310
H8 0.000 2.129 0.747
H9 0.000 2.125 -1.690
H10 0.000 0.000 -2.942
H11 0.000 -2.125 -1.690
H12 0.000 -2.129 0.747
H13 0.000 -0.853 2.822
H14 0.000 0.853 2.822

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 N7 H8 H9 H10 H11 H12 H13 H14
C11.39532.41212.80452.41211.39531.37642.13683.37673.87563.37672.13682.07162.0716
C21.39531.38042.40562.75732.39322.41181.07272.12063.37713.82993.36733.31502.6280
C32.41211.38041.38422.38052.75733.67262.12931.07272.13943.35683.82994.47904.0000
C42.80452.40561.38421.38422.40564.18093.37412.13261.07112.13263.37414.76924.7692
C52.41212.75732.38051.38421.38043.67263.82993.35682.13941.07272.12934.00004.4790
C61.39532.39322.75732.40561.38042.41183.36733.82993.37712.12061.07272.62803.3150
N71.37642.41183.67264.18093.67262.41182.64084.52995.25214.52992.64080.99460.9946
H82.13681.07272.12933.37413.82993.36732.64082.43764.25914.90264.25723.63222.4352
H93.37672.12061.07272.13263.35683.82994.52992.43762.46614.25004.90265.40624.6878
H103.87563.37712.13941.07112.13943.37715.25214.25912.46612.46614.25915.82625.8262
H113.37673.82993.35682.13261.07272.12064.52994.90264.25002.46612.43764.68785.4062
H122.13683.36733.82993.37412.12931.07272.64084.25724.90264.25912.43762.43523.6322
H132.07163.31504.47904.76924.00002.62800.99463.63225.40625.82624.68782.43521.7061
H142.07162.62804.00004.76924.47903.31500.99462.43524.68785.82625.40623.63221.7061

picture of aniline state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.689 C1 C2 H8 119.375
C1 C6 C5 120.689 C1 C6 H12 119.375
C1 N7 H13 120.942 C1 N7 H14 120.942
C2 C1 C6 118.098 C2 C1 N7 120.951
C2 C3 C4 120.957 C2 C3 H9 119.117
C3 C2 H8 119.936 C3 C4 C5 118.610
C3 C4 H10 120.695 C4 C3 H9 119.926
C4 C5 C6 120.957 C4 C5 H11 119.926
C5 C4 H10 120.695 C5 C6 H12 119.936
C6 C1 N7 120.951 C6 C5 H11 119.117
H13 N7 H14 118.116
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.390     0.000
2 C -0.269     0.000
3 C -0.211     0.000
4 C -0.278     0.000
5 C -0.211     0.000
6 C -0.269     0.000
7 N -0.984     0.000
8 H 0.224     0.000
9 H 0.236     0.000
10 H 0.229     0.000
11 H 0.236     0.000
12 H 0.224     0.000
13 H 0.341     0.000
14 H 0.341     0.000


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.627 1.627
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.934 0.000 0.000
y 0.000 -36.076 0.000
z 0.000 0.000 -32.760
Traceless
 xyz
x -13.516 0.000 0.000
y 0.000 4.271 0.000
z 0.000 0.000 9.245
Polar
3z2-r218.490
x2-y2-11.858
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.287 0.000 0.000
y 0.000 10.189 0.000
z 0.000 0.000 11.841


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000