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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: mPW1PW91/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/TZVP
 hartrees
Energy at 0K-210.189609
Energy at 298.15K 
HF Energy-210.189609
Nuclear repulsion energy161.634043
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 mPW1PW91/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 3718 3547 73.52      
2 A1 3296 3144 0.02      
3 A1 3275 3125 1.98      
4 A1 1520 1450 9.93      
5 A1 1440 1374 3.75      
6 A1 1191 1137 2.92      
7 A1 1106 1055 9.58      
8 A1 1046 998 32.93      
9 A1 907 866 0.36      
10 A2 892 851 0.00      
11 A2 698 666 0.00      
12 A2 633 604 0.00      
13 B1 840 802 1.82      
14 B1 734 700 164.77      
15 B1 646 617 0.15      
16 B1 493 471 72.79      
17 B2 3290 3139 1.60      
18 B2 3264 3114 2.38      
19 B2 1594 1521 3.29      
20 B2 1475 1407 6.71      
21 B2 1320 1259 1.70      
22 B2 1175 1121 3.49      
23 B2 1079 1029 30.51      
24 B2 884 843 1.70      

Unscaled Zero Point Vibrational Energy (zpe) 18259.2 cm-1
Scaled (by 0.954) Zero Point Vibrational Energy (zpe) 17419.3 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 mPW1PW91/TZVP
ABC
0.30819 0.30375 0.15298

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.115
H2 0.000 0.000 2.118
C3 0.000 1.118 0.330
C4 0.000 -1.118 0.330
C5 0.000 0.709 -0.978
C6 0.000 -0.709 -0.978
H7 0.000 2.105 0.762
H8 0.000 -2.105 0.762
H9 0.000 1.355 -1.840
H10 0.000 -1.355 -1.840

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00281.36601.36602.20972.20972.13412.13413.25103.2510
H21.00282.10842.10843.17593.17592.50352.50354.18354.1835
C31.36602.10842.23641.37092.24721.07683.25172.18333.2908
C41.36602.10842.23642.24721.37093.25171.07683.29082.1833
C52.20973.17591.37092.24721.41762.23083.30811.07762.2370
C62.20973.17592.24721.37091.41763.30812.23082.23701.0776
H72.13412.50351.07683.25172.23083.30814.20942.70784.3294
H82.13412.50353.25171.07683.30812.23084.20944.32942.7078
H93.25104.18352.18333.29081.07762.23702.70784.32942.7110
H103.25104.18353.29082.18332.23701.07764.32942.70782.7110

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.680 N1 C3 H7 121.308
N1 C4 C6 107.680 N1 C4 H8 121.308
H2 N1 C3 125.056 H2 N1 C4 125.056
C3 N1 C4 109.888 C3 C5 C6 107.376
C3 C5 H9 125.744 C4 C6 C5 107.376
C4 C6 H10 125.744 C5 C3 H7 131.012
C5 C6 H10 126.880 C6 C4 H8 131.012
C6 C5 H9 126.880
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.126      
2 H 0.240      
3 C -0.163      
4 C -0.163      
5 C -0.127      
6 C -0.127      
7 H 0.115      
8 H 0.115      
9 H 0.118      
10 H 0.118      


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 1.970 1.970
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.979 0.000 0.000
y 0.000 -26.674 0.000
z 0.000 0.000 -23.414
Traceless
 xyz
x -8.935 0.000 0.000
y 0.000 2.023 0.000
z 0.000 0.000 6.912
Polar
3z2-r213.824
x2-y2-7.306
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.642 0.000 0.000
y 0.000 8.446 0.000
z 0.000 0.000 8.231


<r2> (average value of r2) Å2
<r2> 84.977
(<r2>)1/2 9.218