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

using model chemistry: MP2/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-208.971502
Energy at 298.15K-208.976281
HF Energy-208.216986
Nuclear repulsion energy151.665282
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 MP2/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3320 3136 0.05      
2 A1 3273 3092 0.08      
3 A1 1593 1505 13.57      
4 A1 1448 1368 27.22      
5 A1 1270 1199 10.63      
6 A1 1120 1058 38.41      
7 A1 1085 1025 6.14      
8 A1 891 842 13.55      
9 A2 946 894 0.00      
10 A2 871 823 0.00      
11 A2 519 490 0.00      
12 B1 925 874 0.03      
13 B1 736 695 48.31      
14 B1 574 542 26.01      
15 B2 27132 25626 0.00      
16 B2 3298 3115 32.48      
17 B2 3265 3084 67.44      
18 B2 1324 1250 115.92      
19 B2 1307 1234 17.90      
20 B2 1035 978 1.56      
21 B2 889 839 6.15      

Unscaled Zero Point Vibrational Energy (zpe) 28409.4 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 26832.6 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 MP2/6-31G(2df,p)
ABC
0.33617 0.29739 0.15780

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.242
C2 0.000 1.051 0.420
C3 0.000 -1.051 0.420
C4 0.000 0.687 -0.977
C5 0.000 -0.687 -0.977
H6 0.000 2.060 0.814
H7 0.000 -2.060 0.814
H8 0.000 1.360 -1.819
H9 0.000 -1.360 -1.819

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.33461.33462.32282.32282.10412.10413.35003.3500
C21.33462.10291.44372.23021.08283.13642.26063.2911
C31.33462.10292.23021.44373.13641.08283.29112.2606
C42.32281.44372.23021.37412.25653.27921.07852.2139
C52.32282.23021.44371.37413.27922.25652.21391.0785
H62.10411.08283.13642.25653.27924.12022.72454.3165
H72.10413.13641.08283.27922.25654.12024.31652.7245
H83.35002.26063.29111.07852.21392.72454.31652.7206
H93.35003.29112.26062.21391.07854.31652.72452.7206

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 113.397 N1 C2 H6 120.659
N1 C3 C5 113.397 N1 C3 H7 120.659
C2 N1 C3 103.965 C2 C4 C5 104.620
C2 C4 H8 126.751 C3 C5 C4 104.620
C3 C5 H9 126.751 C4 C2 H6 125.944
C4 C5 H9 128.628 C5 C3 H7 125.944
C5 C4 H8 128.628
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability