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

using model chemistry: QCISD/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at QCISD/TZVP
 hartrees
Energy at 0K-208.980286
Energy at 298.15K-208.984258
HF Energy-208.259547
Nuclear repulsion energy150.885919
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 QCISD/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 A1 3296 3149 1.64      
2 A1 3257 3111 1.56      
3 A1 1591 1520 0.78      
4 A1 1472 1407 19.73      
5 A1 1216 1162 2.94      
6 A1 1110 1060 31.75      
7 A1 1055 1008 1.13      
8 A1 892 852 7.88      
9 A2 778 743 0.00      
10 A2 569 543 0.00      
11 A2 165 157 0.00      
12 B1 718 686 5.68      
13 B1 667 637 69.97      
14 B1 531 507 17.61      
15 B2 3276 3130 2.15      
16 B2 3252 3107 11.29      
17 B2 1428 1364 8.83      
18 B2 1321 1262 0.18      
19 B2 1051 1004 13.60      
20 B2 1012 967 9.73      
21 B2 697 665 0.15      

Unscaled Zero Point Vibrational Energy (zpe) 14676.6 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 14020.6 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 QCISD/TZVP
ABC
0.33346 0.29327 0.15604

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.248
C2 0.000 1.064 0.426
C3 0.000 -1.064 0.426
C4 0.000 0.678 -0.985
C5 0.000 -0.678 -0.985
H6 0.000 2.071 0.819
H7 0.000 -2.071 0.819
H8 0.000 1.352 -1.828
H9 0.000 -1.352 -1.828

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.34481.34482.33402.33402.11492.11493.35963.3596
C21.34482.12841.46282.24221.08113.15982.27183.3037
C31.34482.12842.24221.46283.15981.08113.30372.2718
C42.33401.46282.24221.35682.27953.28881.07852.1980
C52.33402.24221.46281.35683.28882.27952.19801.0785
H62.11491.08113.15982.27953.28884.14212.74324.3270
H72.11493.15981.08113.28882.27954.14214.32702.7432
H83.35962.27183.30371.07852.19802.74324.32702.7033
H93.35963.30372.27182.19801.07854.32702.74322.7033

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 112.399 N1 C2 H6 120.956
N1 C3 C5 112.399 N1 C3 H7 120.956
C2 N1 C3 104.621 C2 C4 C5 105.291
C2 C4 H8 126.084 C3 C5 C4 105.291
C3 C5 H9 126.084 C4 C2 H6 126.645
C4 C5 H9 128.625 C5 C3 H7 126.645
C5 C4 H8 128.625
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability