return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H7N (1H-Pyrrole, 1-methyl-)

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-249.357127
Energy at 298.15K-249.365113
Nuclear repulsion energy224.676919
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 B1B95/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3309 3142 1.28      
2 A 3302 3134 8.39      
3 A 3289 3122 5.21      
4 A 3279 3112 1.86      
5 A 3185 3024 11.59      
6 A 3154 2994 20.36      
7 A 3078 2922 59.30      
8 A 1601 1520 0.92      
9 A 1579 1499 45.48      
10 A 1545 1467 6.62      
11 A 1519 1442 11.89      
12 A 1480 1405 5.80      
13 A 1468 1394 14.13      
14 A 1449 1375 0.19      
15 A 1356 1287 40.91      
16 A 1303 1237 0.31      
17 A 1157 1098 6.51      
18 A 1125 1068 24.57      
19 A 1120 1063 9.33      
20 A 1103 1047 0.05      
21 A 1080 1025 6.89      
22 A 996 945 7.44      
23 A 881 837 0.00      
24 A 875 831 0.08      
25 A 818 776 0.30      
26 A 737 700 90.52      
27 A 684 649 4.94      
28 A 684 649 0.04      
29 A 628 597 0.00      
30 A 623 591 7.03      
31 A 354 336 0.46      
32 A 192 182 3.65      
33 A 85 81 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 24519.1 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 23276.0 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 B1B95/6-31G*
ABC
0.29303 0.11982 0.08647

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.061 -0.000 0.026
H2 2.450 -0.884 -0.481
H3 2.450 0.884 -0.481
H4 2.421 -0.000 1.059
C5 -1.484 0.708 0.015
H6 -2.346 1.358 0.021
C7 -1.484 -0.708 0.015
H8 -2.346 -1.358 0.021
C9 -0.173 -1.113 -0.014
H10 0.266 -2.099 -0.023
C11 -0.173 1.113 -0.014
H12 0.266 2.099 -0.023
N13 0.622 0.000 -0.039

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 C7 H8 C9 H10 C11 H12 N13
C11.09061.09061.09413.61474.61113.61474.61112.49572.76202.49572.76201.4407
H21.09061.76781.77594.27225.31723.96864.84492.67362.54083.32883.72482.0782
H31.09061.76781.77593.96854.84474.27225.31723.32883.72502.67342.54052.0781
H41.09411.77591.77594.10355.06404.10345.06383.01923.19653.01943.19692.1077
C53.61474.27223.96854.10351.07961.41532.23812.24343.30721.37252.23552.2218
H64.61115.31724.84475.06401.07962.23812.71563.29024.33232.18702.71493.2638
C73.61473.96864.27224.10341.41532.23811.07961.37252.23552.24343.30722.2218
H84.61114.84495.31725.06382.23812.71561.07962.18702.71493.29024.33233.2638
C92.49572.67363.32883.01922.24343.29021.37252.18701.07922.22503.24091.3672
H102.76202.54083.72503.19653.30724.33232.23552.71491.07923.24094.19722.1286
C112.49573.32882.67343.01941.37252.18702.24343.29022.22503.24091.07921.3672
H122.76203.72482.54053.19692.23552.71493.30724.33233.24094.19721.07922.1286
N131.44072.07822.07812.10772.22183.26382.22183.26381.36722.12861.36722.1286

picture of 1H-Pyrrole, 1-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N13 C9 125.423 C1 N13 C11 125.424
H2 C1 H3 108.284 H2 C1 H4 108.760
H2 C1 N13 109.591 H3 C1 H4 108.760
H3 C1 N13 109.589 H4 C1 N13 111.783
C5 C7 H8 127.028 C5 C7 C9 107.156
C5 C11 H12 131.137 C5 C11 N13 108.384
H6 C5 C7 127.028 H6 C5 C11 125.810
C7 C5 C11 107.156 C7 C9 H10 131.137
C7 C9 N13 108.384 H8 C7 C9 125.810
C9 N13 C11 108.917 H10 C9 N13 120.478
H12 C11 N13 120.478
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.350      
2 H 0.185      
3 H 0.185      
4 H 0.187      
5 C -0.222      
6 H 0.147      
7 C -0.222      
8 H 0.147      
9 C 0.018      
10 H 0.159      
11 C 0.018      
12 H 0.159      
13 N -0.411      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.112 0.000 0.008 2.112
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.021 0.000 -0.084
y 0.000 -32.486 0.000
z -0.084 0.000 -38.938
Traceless
 xyz
x 4.691 0.000 -0.084
y 0.000 2.494 0.000
z -0.084 0.000 -7.185
Polar
3z2-r2-14.370
x2-y21.465
xy0.000
xz-0.084
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.301 -0.000 0.015
y -0.000 8.880 0.000
z 0.015 0.000 4.121


<r2> (average value of r2) Å2
<r2> 141.831
(<r2>)1/2 11.909