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: MP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-248.783221
Energy at 298.15K-248.791146
HF Energy-247.895692
Nuclear repulsion energy223.453455
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 MP2/6-311G**
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 3297 3133 1.34      
2 A 3287 3124 4.57      
3 A 3276 3113 2.37      
4 A 3267 3104 1.23      
5 A 3193 3034 9.29      
6 A 3169 3011 16.53      
7 A 3081 2928 48.99      
8 A 1561 1483 37.23      
9 A 1545 1468 2.00      
10 A 1542 1465 7.23      
11 A 1509 1434 12.19      
12 A 1468 1395 13.46      
13 A 1454 1381 0.17      
14 A 1441 1369 6.17      
15 A 1334 1267 33.55      
16 A 1290 1226 0.13      
17 A 1160 1103 6.82      
18 A 1116 1060 6.04      
19 A 1113 1058 18.13      
20 A 1101 1046 2.39      
21 A 1069 1015 12.22      
22 A 986 937 5.05      
23 A 880 837 0.00      
24 A 793 754 0.18      
25 A 763 725 0.10      
26 A 705 670 119.52      
27 A 677 643 6.30      
28 A 634 602 0.01      
29 A 605 575 4.29      
30 A 581 552 0.01      
31 A 355 337 0.54      
32 A 186 176 3.68      
33 A 104 98 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 24269.4 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 23060.8 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 MP2/6-311G**
ABC
0.28983 0.11850 0.08554

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.073 -0.000 0.031
H2 2.458 -0.886 -0.476
H3 2.458 0.888 -0.474
H4 2.415 -0.001 1.070
C5 -1.495 0.710 0.018
H6 -2.357 1.362 0.026
C7 -1.495 -0.710 0.018
H8 -2.357 -1.362 0.026
C9 -0.169 -1.120 -0.016
H10 0.272 -2.108 -0.028
C11 -0.169 1.121 -0.016
H12 0.272 2.108 -0.028
N13 0.623 0.000 -0.046

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 C7 H8 C9 H10 C11 H12 N13
C11.09161.09161.09393.63754.63423.63754.63422.50652.77292.50652.77291.4515
H21.09161.77391.78244.29165.33773.98774.86442.67732.54433.33783.73432.0826
H31.09161.77391.78243.98724.86374.29155.33773.33793.73492.67662.54302.0824
H41.09391.78241.78244.11075.07134.11035.07073.01823.19933.01903.20082.1110
C53.63754.29163.98724.11071.08101.41922.24382.26023.32551.38862.25322.2348
H64.63425.33774.86375.07131.08102.24382.72403.30934.35312.20162.73273.2774
C73.63753.98774.29154.11031.41922.24381.08101.38862.25322.26023.32552.2348
H84.63424.86445.33775.07072.24382.72401.08102.20162.73273.30934.35313.2774
C92.50652.67733.33793.01822.26023.30931.38862.20161.08102.24103.25801.3726
H102.77292.54433.73493.19933.32554.35312.25322.73271.08103.25804.21502.1367
C112.50653.33782.67663.01901.38862.20162.26023.30932.24103.25801.08101.3726
H122.77293.73432.54303.20082.25322.73273.32554.35313.25804.21501.08102.1367
N131.45152.08262.08242.11102.23483.27742.23483.27741.37262.13671.37262.1367

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 125.110 C1 N13 C11 125.111
H2 C1 H3 108.687 H2 C1 H4 109.283
H2 C1 N13 109.135 H3 C1 H4 109.284
H3 C1 N13 109.121 H4 C1 N13 111.288
C5 C7 H8 127.118 C5 C7 C9 107.211
C5 C11 H12 131.277 C5 C11 N13 108.065
H6 C5 C7 127.118 H6 C5 C11 125.662
C7 C5 C11 107.212 C7 C9 H10 131.272
C7 C9 N13 108.066 H8 C7 C9 125.662
C9 N13 C11 109.440 H10 C9 N13 120.661
H12 C11 N13 120.657
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability