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

using model chemistry: CCSD/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 CCSD/TZVP
 hartrees
Energy at 0K-208.978184
Energy at 298.15K-208.982237
HF Energy-208.259648
Nuclear repulsion energy150.967927
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 CCSD/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 3299 3148 1.50      
2 A1 3259 3110 1.45      
3 A1 1595 1523 0.82      
4 A1 1477 1410 20.36      
5 A1 1221 1165 3.06      
6 A1 1113 1062 31.79      
7 A1 1057 1009 1.02      
8 A1 894 853 7.89      
9 A2 782 746 0.00      
10 A2 575 549 0.00      
11 A2 161 154 0.00      
12 B1 721 689 5.87      
13 B1 668 637 70.03      
14 B1 532 508 17.63      
15 B2 3278 3129 1.09      
16 B2 3254 3106 8.08      
17 B2 1524 1455 48.51      
18 B2 1325 1265 4.34      
19 B2 1181 1127 146.32      
20 B2 1032 985 1.24      
21 B2 840 802 6.11      

Unscaled Zero Point Vibrational Energy (zpe) 14894.0 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 14214.8 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 CCSD/TZVP
ABC
0.33386 0.29357 0.15621

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.247
C2 0.000 1.063 0.426
C3 0.000 -1.063 0.426
C4 0.000 0.678 -0.985
C5 0.000 -0.678 -0.985
H6 0.000 2.070 0.819
H7 0.000 -2.070 0.819
H8 0.000 1.351 -1.827
H9 0.000 -1.351 -1.827

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.34361.34362.33262.33262.11392.11393.35803.3580
C21.34362.12671.46232.24111.08093.15812.27123.3025
C31.34362.12672.24111.46233.15811.08093.30252.2712
C42.33261.46232.24111.35632.27873.28751.07832.1974
C52.33262.24111.46231.35633.28752.27872.19741.0783
H62.11391.08093.15812.27873.28754.14032.74224.3255
H72.11393.15811.08093.28752.27874.14034.32552.7422
H83.35802.27123.30251.07832.19742.74224.32552.7029
H93.35803.30252.27122.19741.07834.32552.74222.7029

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 112.404 N1 C2 H6 120.973
N1 C3 C5 112.404 N1 C3 H7 120.973
C2 N1 C3 104.642 C2 C4 C5 105.275
C2 C4 H8 126.084 C3 C5 C4 105.275
C3 C5 H9 126.084 C4 C2 H6 126.623
C4 C5 H9 128.641 C5 C3 H7 126.623
C5 C4 H8 128.641
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability