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-249.296600
Energy at 298.15K-249.304690
Nuclear repulsion energy223.404237
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 3327 3173 1.18      
2 A 3316 3163 7.27      
3 A 3301 3148 6.23      
4 A 3289 3136 3.07      
5 A 3181 3034 12.05      
6 A 3150 3004 23.15      
7 A 3068 2926 57.52      
8 A 1588 1515 1.63      
9 A 1565 1493 35.93      
10 A 1555 1483 8.48      
11 A 1533 1462 16.43      
12 A 1484 1415 8.48      
13 A 1464 1397 5.22      
14 A 1429 1362 0.10      
15 A 1348 1286 46.11      
16 A 1324 1263 0.02      
17 A 1168 1114 5.76      
18 A 1132 1080 12.68      
19 A 1132 1079 19.96      
20 A 1109 1058 4.99      
21 A 1082 1032 5.17      
22 A 1002 956 9.56      
23 A 919 876 0.05      
24 A 903 861 0.00      
25 A 859 819 0.02      
26 A 755 720 105.54      
27 A 723 689 0.03      
28 A 686 655 4.13      
29 A 640 611 18.50      
30 A 638 608 0.00      
31 A 361 345 0.68      
32 A 213 203 5.91      
33 A 68 64 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 24655.6 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 23514.0 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
0.28900 0.11848 0.08541

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 2.075 -0.000 0.019
H2 2.458 -0.884 -0.494
H3 2.458 0.884 -0.493
H4 2.448 -0.000 1.048
C5 -1.491 0.711 0.011
H6 -2.356 1.355 0.015
C7 -1.491 -0.711 0.011
H8 -2.356 -1.355 0.015
C9 -0.175 -1.124 -0.010
H10 0.256 -2.111 -0.017
C11 -0.175 1.124 -0.010
H12 0.256 2.111 -0.017
N13 0.626 -0.000 -0.026

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 C7 H8 C9 H10 C11 H12 N13
C11.09091.09091.09423.63654.63353.63654.63352.51572.78722.51572.78721.4501
H21.09091.76821.77654.28855.33293.98454.86292.68762.56533.34613.74762.0869
H31.09091.76821.77653.98444.86284.28855.33293.34623.74782.68742.56492.0869
H41.09421.77651.77654.13475.09684.13465.09663.04333.22403.04363.22452.1149
C53.63654.28853.98444.13471.07801.42272.24012.25813.31941.37902.23862.2335
H64.63355.33294.86285.09681.07802.24012.71043.30154.34002.19272.71883.2753
C73.63653.98454.28854.13461.42272.24011.07801.37902.23862.25813.31942.2335
H84.63354.86295.33295.09662.24012.71041.07802.19272.71883.30154.34003.2753
C92.51572.68763.34623.04332.25813.30151.37902.19271.07732.24763.26351.3802
H102.78722.56533.74783.22403.31944.34002.23862.71881.07733.26354.22212.1433
C112.51573.34612.68743.04361.37902.19272.25813.30152.24763.26351.07731.3802
H122.78723.74762.56493.22452.23862.71883.31944.34003.26354.22211.07732.1433
N131.45012.08692.08692.11492.23353.27532.23353.27531.38022.14331.38022.1433

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 125.437 C1 N13 C11 125.437
H2 C1 H3 108.274 H2 C1 H4 108.789
H2 C1 N13 109.616 H3 C1 H4 108.788
H3 C1 N13 109.614 H4 C1 N13 111.689
C5 C7 H8 126.676 C5 C7 C9 107.403
C5 C11 H12 130.996 C5 C11 N13 108.087
H6 C5 C7 126.676 H6 C5 C11 125.918
C7 C5 C11 107.403 C7 C9 H10 130.996
C7 C9 N13 108.087 H8 C7 C9 125.918
C9 N13 C11 109.019 H10 C9 N13 120.917
H12 C11 N13 120.917
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 -0.272      
2 H 0.177      
3 H 0.177      
4 H 0.183      
5 C -0.220      
6 H 0.146      
7 C -0.220      
8 H 0.146      
9 C 0.095      
10 H 0.165      
11 C 0.095      
12 H 0.165      
13 N -0.637      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.203 0.000 0.010 2.203
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.976 0.000 -0.068
y 0.000 -32.613 0.000
z -0.068 0.000 -39.384
Traceless
 xyz
x 5.023 0.000 -0.068
y 0.000 2.567 0.000
z -0.068 0.000 -7.590
Polar
3z2-r2-15.180
x2-y21.637
xy0.000
xz-0.068
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.125 -0.000 0.032
y -0.000 8.798 0.000
z 0.032 0.000 3.867


<r2> (average value of r2) Å2
<r2> 143.338
(<r2>)1/2 11.972