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

using model chemistry: CCSD/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-208.936046
Energy at 298.15K-208.940688
HF Energy-208.222594
Nuclear repulsion energy149.595347
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/aug-cc-pVDZ
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 3277 3157 1.44      
2 A1 3239 3121 1.19      
3 A1 1575 1517 0.78      
4 A1 1465 1411 22.36      
5 A1 1200 1156 1.80      
6 A1 1094 1054 30.15      
7 A1 1047 1008 0.30      
8 A1 874 842 9.72      
9 A2 871 839 0.00      
10 A2 822 792 0.00      
11 A2 489 471 0.00      
12 B1 813 784 0.00      
13 B1 702 676 72.27      
14 B1 544 524 17.08      
15 B2 3259 3139 1.47      
16 B2 3235 3117 1.75      
17 B2 1995 1922 1293.51      
18 B2 1300 1252 31.57      
19 B2 1254 1208 109.25      
20 B2 1025 987 0.89      
21 B2 857 826 2.54      

Unscaled Zero Point Vibrational Energy (zpe) 15468.0 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 14901.8 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/aug-cc-pVDZ
ABC
0.32739 0.28874 0.15343

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.257
C2 0.000 1.073 0.429
C3 0.000 -1.073 0.429
C4 0.000 0.686 -0.993
C5 0.000 -0.686 -0.993
H6 0.000 2.090 0.828
H7 0.000 -2.090 0.828
H8 0.000 1.366 -1.845
H9 0.000 -1.366 -1.845

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.35531.35532.35222.35222.13382.13383.38993.3899
C21.35532.14571.47332.26171.09283.18812.29333.3346
C31.35532.14572.26171.47333.18811.09283.33462.2933
C42.35221.47332.26171.37242.29903.32011.09042.2221
C52.35222.26171.47331.37243.32012.29902.22211.0904
H62.13381.09283.18812.29903.32014.18042.76974.3692
H72.13383.18811.09283.32012.29904.18044.36922.7697
H83.38992.29333.33461.09042.22212.76974.36922.7315
H93.38993.33462.29332.22211.09044.36922.76972.7315

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 112.454 N1 C2 H6 120.926
N1 C3 C5 112.454 N1 C3 H7 120.926
C2 N1 C3 104.667 C2 C4 C5 105.213
C2 C4 H8 126.238 C3 C5 C4 105.213
C3 C5 H9 126.238 C4 C2 H6 126.620
C4 C5 H9 128.549 C5 C3 H7 126.620
C5 C4 H8 128.549
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability