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: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-247.986487
Energy at 298.15K-247.994552
Nuclear repulsion energy223.112152
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 B1B95/3-21G
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 3322 3178 0.67      
2 A 3310 3167 2.81      
3 A 3296 3153 2.34      
4 A 3284 3142 2.05      
5 A 3166 3029 8.96      
6 A 3140 3004 19.06      
7 A 3069 2936 42.29      
8 A 1574 1506 11.54      
9 A 1553 1486 8.76      
10 A 1552 1485 0.02      
11 A 1535 1469 29.03      
12 A 1466 1403 12.11      
13 A 1422 1361 6.22      
14 A 1389 1329 0.09      
15 A 1323 1266 50.76      
16 A 1316 1259 0.03      
17 A 1158 1108 7.10      
18 A 1123 1074 21.60      
19 A 1122 1073 13.96      
20 A 1088 1041 4.86      
21 A 1066 1020 4.36      
22 A 1000 956 11.76      
23 A 915 876 0.06      
24 A 914 874 0.09      
25 A 866 829 0.21      
26 A 752 720 115.77      
27 A 726 695 0.06      
28 A 673 644 5.31      
29 A 640 613 0.01      
30 A 640 612 19.37      
31 A 350 335 0.85      
32 A 204 195 5.96      
33 A 70 67 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 24512.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 23450.7 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 B1B95/3-21G
ABC
0.28797 0.11811 0.08513

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.083 -0.000 0.020
H2 2.460 -0.886 -0.493
H3 2.460 0.886 -0.492
H4 2.446 -0.000 1.052
C5 -1.492 0.713 0.012
H6 -2.356 1.353 0.017
C7 -1.492 -0.713 0.012
H8 -2.356 -1.353 0.017
C9 -0.177 -1.126 -0.010
H10 0.251 -2.113 -0.019
C11 -0.177 1.126 -0.010
H12 0.251 2.113 -0.019
N13 0.625 -0.000 -0.029

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 C7 H8 C9 H10 C11 H12 N13
C11.09141.09141.09373.64484.64103.64484.64102.52552.79662.52552.79661.4591
H21.09141.77251.78094.29275.33613.98764.86602.69222.57083.35253.75472.0904
H31.09141.77251.78093.98754.86594.29285.33623.35263.75492.69192.57052.0904
H41.09371.78091.78094.13515.09614.13495.09593.04653.22943.04673.22992.1183
C53.64484.29273.98754.13511.07611.42582.23992.26053.32021.37782.23572.2334
H64.64105.33614.86595.09611.07612.23992.70653.30104.33772.19092.71633.2741
C73.64483.98764.29284.13491.42582.23991.07611.37782.23572.26053.32022.2334
H84.64104.86605.33625.09592.23992.70651.07612.19092.71633.30104.33773.2741
C92.52552.69223.35263.04652.26053.30101.37782.19091.07592.25243.26741.3827
H102.79662.57083.75493.22943.32024.33772.23572.71631.07593.26744.22592.1457
C112.52553.35252.69193.04671.37782.19092.26053.30102.25243.26741.07591.3827
H122.79663.75472.57053.22992.23572.71633.32024.33773.26744.22591.07592.1457
N131.45912.09042.09042.11832.23343.27412.23343.27411.38272.14571.38272.1457

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 125.398 C1 N13 C11 125.398
H2 C1 H3 108.591 H2 C1 H4 109.180
H2 C1 N13 109.248 H3 C1 H4 109.180
H3 C1 N13 109.246 H4 C1 N13 111.350
C5 C7 H8 126.518 C5 C7 C9 107.458
C5 C11 H12 130.946 C5 C11 N13 108.005
H6 C5 C7 126.518 H6 C5 C11 126.021
C7 C5 C11 107.458 C7 C9 H10 130.945
C7 C9 N13 108.005 H8 C7 C9 126.021
C9 N13 C11 109.072 H10 C9 N13 121.049
H12 C11 N13 121.048
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.409      
2 H 0.231      
3 H 0.231      
4 H 0.234      
5 C -0.281      
6 H 0.193      
7 C -0.281      
8 H 0.193      
9 C 0.069      
10 H 0.217      
11 C 0.069      
12 H 0.217      
13 N -0.683      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.309 0.000 0.005 2.309
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.528 0.000 -0.085
y 0.000 -32.296 0.000
z -0.085 0.000 -40.027
Traceless
 xyz
x 5.634 0.000 -0.085
y 0.000 2.981 0.000
z -0.085 0.000 -8.615
Polar
3z2-r2-17.230
x2-y21.768
xy0.000
xz-0.085
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.722 -0.000 0.013
y -0.000 8.375 0.000
z 0.013 0.000 3.319


<r2> (average value of r2) Å2
<r2> 143.656
(<r2>)1/2 11.986