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

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-208.275686
Energy at 298.15K 
HF Energy-208.275686
Nuclear repulsion energy152.251868
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 HF/Def2TZVPP
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 3400 3082 2.20      
2 A1 3363 3048 3.14      
3 A1 1697 1538 0.08      
4 A1 1568 1421 21.07      
5 A1 1268 1149 0.49      
6 A1 1175 1065 30.78      
7 A1 1085 983 2.23      
8 A1 942 854 13.62      
9 A2 1049 951 0.00      
10 A2 881 799 0.00      
11 A2 557 505 0.00      
12 B1 892 809 7.74      
13 B1 788 714 76.10      
14 B1 591 536 18.25      
15 B2 3378 3062 14.60      
16 B2 3358 3043 20.43      
17 B2 1458 1322 69.57      
18 B2 1399 1268 17.82      
19 B2 1115 1011 1.16      
20 B2 969 879 0.53      
21 B2 553i 502i 403.56      

Unscaled Zero Point Vibrational Energy (zpe) 15189.4 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 13767.7 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 HF/Def2TZVPP
ABC
0.33935 0.29846 0.15880

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.247
C2 0.000 1.043 0.416
C3 0.000 -1.043 0.416
C4 0.000 0.671 -0.975
C5 0.000 -0.671 -0.975
H6 0.000 2.039 0.809
H7 0.000 -2.039 0.809
H8 0.000 1.322 -1.822
H9 0.000 -1.322 -1.822

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.33311.33312.32052.32052.08562.08563.34143.3414
C21.33312.08501.43962.20661.07153.10672.25553.2555
C31.33312.08502.20661.43963.10671.07153.25552.2555
C42.32051.43962.20661.34122.24863.24441.06862.1649
C52.32052.20661.43961.34123.24442.24862.16491.0686
H62.08561.07153.10672.24863.24444.07842.72764.2685
H72.08563.10671.07153.24442.24864.07844.26852.7276
H83.34142.25553.25551.06862.16492.72764.26852.6432
H93.34143.25552.25552.16491.06864.26852.72762.6432

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 113.580 N1 C2 H6 119.910
N1 C3 C5 113.580 N1 C3 H7 119.910
C2 N1 C3 102.897 C2 C4 C5 104.971
C2 C4 H8 127.497 C3 C5 C4 104.971
C3 C5 H9 127.497 C4 C2 H6 126.509
C4 C5 H9 127.532 C5 C3 H7 126.509
C5 C4 H8 127.532
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.413      
2 C 0.119      
3 C 0.119      
4 C -0.123      
5 C -0.123      
6 H 0.097      
7 H 0.097      
8 H 0.113      
9 H 0.113      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.154 2.154
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.648 0.000 0.000
y 0.000 -23.121 0.000
z 0.000 0.000 -32.123
Traceless
 xyz
x -4.026 0.000 0.000
y 0.000 8.765 0.000
z 0.000 0.000 -4.739
Polar
3z2-r2-9.478
x2-y2-8.527
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.445 0.000 0.000
y 0.000 9.342 0.000
z 0.000 0.000 7.010


<r2> (average value of r2) Å2
<r2> 81.086
(<r2>)1/2 9.005