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: MP2/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP2/TZVP
 hartrees
Energy at 0K-133.558731
Energy at 298.15K-133.564930
HF Energy-133.083791
Nuclear repulsion energy76.247591
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 MP2/TZVP
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' 3549 3364 1.51      
2 A' 3288 3117 22.91      
3 A' 3185 3019 11.90      
4 A' 1556 1475 1.28      
5 A' 1305 1237 2.28      
6 A' 1255 1190 13.82      
7 A' 1155 1095 6.68      
8 A' 1028 975 7.01      
9 A' 884 838 45.53      
10 A' 790 748 36.65      
11 A" 3276 3105 0.47      
12 A" 3179 3014 20.94      
13 A" 1528 1449 0.01      
14 A" 1294 1227 11.91      
15 A" 1186 1124 4.08      
16 A" 1139 1080 3.48      
17 A" 942 893 13.42      
18 A" 866 821 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 15702.8 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 14884.7 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 MP2/TZVP
ABC
0.76360 0.71281 0.45056

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.039 0.876 0.000
H2 0.901 1.263 0.000
C3 -0.039 -0.399 0.739
C4 -0.039 -0.399 -0.739
H5 -0.955 -0.608 1.272
H6 0.871 -0.698 1.242
H7 -0.955 -0.608 -1.272
H8 0.871 -0.698 -1.242

Atom - Atom Distances (Å)
  N1 H2 C3 C4 H5 H6 H7 H8
N11.01571.47341.47342.15842.20212.15842.2021
H21.01572.04662.04662.92562.32162.92562.3216
C31.47342.04661.47881.08031.08212.22042.2011
C41.47342.04661.47882.22042.20111.08031.0821
H52.15842.92561.08032.22041.82872.54473.1091
H62.20212.32161.08212.20111.82873.10912.4845
H72.15842.92562.22041.08032.54473.10911.8287
H82.20212.32162.20111.08213.10912.48451.8287

picture of Aziridine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C4 59.879 N1 C3 H5 114.519
N1 C3 H6 118.217 N1 C4 C3 59.879
N1 C4 H7 114.519 N1 C4 H8 118.217
H2 N1 C3 109.238 H2 N1 C4 109.238
C3 N1 C4 60.242 C3 C4 H7 119.562
C3 C4 H8 117.692 C4 C3 H5 119.562
C4 C3 H6 117.692 H5 C3 H6 115.486
H7 C4 H8 115.486
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability