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 C2H5N (Aziridine)

using model chemistry: HF/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at HF/6-31G*
 hartrees
Energy at 0K-133.038559
Energy at 298.15K-133.044879
HF Energy-133.038559
Nuclear repulsion energy77.019523
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/6-31G*
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' 3776 3393 1.76      
2 A' 3392 3048 53.85      
3 A' 3306 2971 17.93      
4 A' 1686 1515 2.64      
5 A' 1411 1267 11.58      
6 A' 1370 1231 18.69      
7 A' 1254 1127 0.42      
8 A' 1093 982 20.08      
9 A' 970 871 77.61      
10 A' 849 763 25.31      
11 A" 3377 3034 1.36      
12 A" 3295 2961 43.76      
13 A" 1642 1476 0.49      
14 A" 1404 1261 9.92      
15 A" 1272 1143 2.60      
16 A" 1252 1125 0.65      
17 A" 1012 909 10.93      
18 A" 977 878 3.83      

Unscaled Zero Point Vibrational Energy (zpe) 16668.3 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 14976.5 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/6-31G*
ABC
0.78886 0.71997 0.45887

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.037 0.857 0.000
H2 0.866 1.286 0.000
C3 -0.037 -0.391 0.736
C4 -0.037 -0.391 -0.736
H5 -0.942 -0.601 1.278
H6 0.865 -0.691 1.242
H7 -0.942 -0.601 -1.278
H8 0.865 -0.691 -1.242

Atom - Atom Distances (Å)
  N1 H2 C3 C4 H5 H6 H7 H8
N11.00061.44881.44882.13952.18012.13952.1801
H21.00062.04262.04262.90972.33492.90972.3349
C31.44882.04261.47151.07551.07732.21752.1943
C41.44882.04261.47152.21752.19431.07551.0773
H52.13952.90971.07552.21751.80992.55573.1021
H62.18012.33491.07732.19431.80993.10212.4835
H72.13952.90972.21751.07552.55573.10211.8099
H82.18012.33492.19431.07733.10212.48351.8099

picture of Aziridine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C4 59.480 N1 C3 H5 115.097
N1 C3 H6 118.577 N1 C4 C3 59.480
N1 C4 H7 115.097 N1 C4 H8 118.577
H2 N1 C3 111.698 H2 N1 C4 111.698
C3 N1 C4 61.039 C3 C4 H7 120.271
C3 C4 H8 118.014 C4 C3 H5 120.271
C4 C3 H6 118.014 H5 C3 H6 114.439
H7 C4 H8 114.439
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.626      
2 H 0.346      
3 C -0.220      
4 C -0.220      
5 H 0.188      
6 H 0.172      
7 H 0.188      
8 H 0.172      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.485 -1.256 0.000 1.945
CHELPG 1.438 -1.257 0.000 1.910
AIM 0.016 1.035 0.000 1.035
ESP 1.468 -1.263 0.000 1.937


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.643 2.321 -0.005
y 2.321 -21.096 -0.014
z -0.005 -0.014 -18.372
Traceless
 xyz
x 2.091 2.321 -0.005
y 2.321 -3.089 -0.014
z -0.005 -0.014 0.997
Polar
3z2-r21.994
x2-y23.453
xy2.321
xz-0.005
yz-0.014


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.574 0.201 -0.001
y 0.201 3.360 -0.008
z -0.001 -0.008 4.252


<r2> (average value of r2) Å2
<r2> 39.094
(<r2>)1/2 6.252