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All results from a given calculation for C4H4N (pyrrolide radical)

using model chemistry: MP2=FULL/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at MP2=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-209.163234
Energy at 298.15K-209.168058
HF Energy-208.269605
Nuclear repulsion energy152.331138
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=FULL/aug-cc-pVTZ
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 3297 3137 0.22      
2 A1 3258 3100 0.04      
3 A1 1597 1519 21.16      
4 A1 1458 1387 31.33      
5 A1 1274 1212 11.44      
6 A1 1117 1063 43.22      
7 A1 1078 1026 4.99      
8 A1 892 849 11.35      
9 A2 983 935 0.00      
10 A2 905 861 0.00      
11 A2 520 494 0.00      
12 B1 951 904 0.05      
13 B1 752 715 65.49      
14 B1 573 545 25.84      
15 B2 7868 7486 602129.90      
16 B2 3267 3108 67.11      
17 B2 3244 3087 62.20      
18 B2 1330 1265 102.53      
19 B2 1302 1239 38.39      
20 B2 1037 987 0.21      
21 B2 893 849 7.58      

Unscaled Zero Point Vibrational Energy (zpe) 18797.1 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 17883.6 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=FULL/aug-cc-pVTZ
ABC
0.33783 0.30110 0.15921

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.232
C2 0.000 1.051 0.419
C3 0.000 -1.051 0.419
C4 0.000 0.684 -0.971
C5 0.000 -0.684 -0.971
H6 0.000 2.053 0.813
H7 0.000 -2.053 0.813
H8 0.000 1.350 -1.813
H9 0.000 -1.350 -1.813

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.32921.32922.30692.30692.09552.09553.33093.3309
C21.32922.10181.43702.22251.07703.12892.25113.2777
C31.32922.10182.22251.43703.12891.07703.27772.2511
C42.30691.43702.22251.36772.24873.26691.07362.2014
C52.30692.22251.43701.36773.26692.24872.20141.0736
H62.09551.07703.12892.24873.26694.10612.71804.2984
H72.09553.12891.07703.26692.24874.10614.29842.7180
H83.33092.25113.27771.07362.20142.71804.29842.7005
H93.33093.27772.25112.20141.07364.29842.71802.7005

picture of pyrrolide radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C4 112.958 N1 C2 H6 120.756
N1 C3 C5 112.958 N1 C3 H7 120.756
C2 N1 C3 104.485 C2 C4 C5 104.799
C2 C4 H8 126.832 C3 C5 C4 104.799
C3 C5 H9 126.832 C4 C2 H6 126.286
C4 C5 H9 128.369 C5 C3 H7 126.286
C5 C4 H8 128.369
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability