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: CISD/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 CISD/6-31G*
 hartrees
Energy at 0K-133.441626
Energy at 298.15K-133.447880
HF Energy-133.038004
Nuclear repulsion energy76.447488
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 CISD/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' 3612 3344 0.26      
2 A' 3319 3072 35.98      
3 A' 3231 2991 13.22      
4 A' 1617 1497 1.53      
5 A' 1363 1262 7.32      
6 A' 1319 1221 19.89      
7 A' 1192 1103 2.60      
8 A' 1059 980 14.96      
9 A' 939 870 62.06      
10 A' 820 759 21.37      
11 A" 3306 3060 0.73      
12 A" 3221 2982 28.21      
13 A" 1576 1459 0.02      
14 A" 1342 1242 10.13      
15 A" 1215 1125 3.34      
16 A" 1178 1091 1.78      
17 A" 965 893 13.52      
18 A" 939 869 0.83      

Unscaled Zero Point Vibrational Energy (zpe) 16105.4 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 14910.4 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 CISD/6-31G*
ABC
0.77275 0.71307 0.45274

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.038 0.868 0.000
H2 0.890 1.275 0.000
C3 -0.038 -0.395 0.738
C4 -0.038 -0.395 -0.738
H5 -0.951 -0.605 1.280
H6 0.868 -0.702 1.248
H7 -0.951 -0.605 -1.280
H8 0.868 -0.702 -1.248

Atom - Atom Distances (Å)
  N1 H2 C3 C4 H5 H6 H7 H8
N11.01371.46341.46342.15462.20092.15462.2009
H21.01372.04862.04862.92642.33792.92642.3379
C31.46342.04861.47681.08221.08392.22532.2049
C41.46342.04861.47682.22532.20491.08221.0839
H52.15462.92641.08222.22531.82192.56023.1163
H62.20092.33791.08392.20491.82193.11632.4965
H72.15462.92642.22531.08222.56023.11631.8219
H82.20092.33792.20491.08393.11632.49651.8219

picture of Aziridine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C4 59.695 N1 C3 H5 114.828
N1 C3 H6 118.785 N1 C4 C3 59.695
N1 C4 H7 114.828 N1 C4 H8 118.785
H2 N1 C3 110.263 H2 N1 C4 110.263
C3 N1 C4 60.610 C3 C4 H7 120.038
C3 C4 H8 118.057 C4 C3 H5 120.038
C4 C3 H6 118.057 H5 C3 H6 114.522
H7 C4 H8 114.522
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability