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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: CCSD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD/cc-pVTZ
 hartrees
Energy at 0K-209.748920
Energy at 298.15K 
HF Energy-208.884325
Nuclear repulsion energy161.304670
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 CCSD/cc-pVTZ
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 3737 3517 76.15      
2 A1 3302 3108 0.19      
3 A1 3281 3088 2.45      
4 A1 1535 1445 10.13      
5 A1 1446 1361 4.25      
6 A1 1188 1118 3.01      
7 A1 1106 1041 11.65      
8 A1 1046 985 26.49      
9 A1 904 851 0.27      
10 A2 886 834 0.00      
11 A2 720 677 0.00      
12 A2 629 592 0.00      
13 B1 859 809 0.52      
14 B1 753 709 147.01      
15 B1 645 607 0.04      
16 B1 458 431 73.81      
17 B2 3295 3101 3.36      
18 B2 3270 3077 2.33      
19 B2 1606 1512 2.85      
20 B2 1490 1402 8.99      
21 B2 1331 1253 0.96      
22 B2 1175 1105 1.50      
23 B2 1084 1020 19.04      
24 B2 882 830 1.58      

Unscaled Zero Point Vibrational Energy (zpe) 18314.1 cm-1
Scaled (by 0.9412) Zero Point Vibrational Energy (zpe) 17237.3 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 CCSD/cc-pVTZ
ABC
0.30654 0.30257 0.15227

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.119
H2 0.000 0.000 2.119
C3 0.000 1.120 0.330
C4 0.000 -1.120 0.330
C5 0.000 0.713 -0.980
C6 0.000 -0.713 -0.980
H7 0.000 2.105 0.762
H8 0.000 -2.105 0.762
H9 0.000 1.360 -1.839
H10 0.000 -1.360 -1.839

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00031.37001.37002.21672.21672.13512.13513.25583.2558
H21.00032.11062.11063.18013.18012.50462.50464.18554.1855
C31.37002.11062.24091.37242.25371.07503.25422.18283.2957
C41.37002.11062.24092.25371.37243.25421.07503.29572.1828
C52.21673.18011.37242.25371.42602.22993.31311.07572.2443
C62.21673.18012.25371.37241.42603.31312.22992.24431.0757
H72.13512.50461.07503.25422.22993.31314.21012.70574.3330
H82.13512.50463.25421.07503.31312.22994.21014.33302.7057
H93.25584.18552.18283.29571.07572.24432.70574.33302.7207
H103.25584.18553.29572.18282.24431.07574.33302.70572.7207

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.862 N1 C3 H7 121.199
N1 C4 C6 107.862 N1 C4 H8 121.199
H2 N1 C3 125.132 H2 N1 C4 125.132
C3 N1 C4 109.737 C3 C5 C6 107.270
C3 C5 H9 125.732 C4 C6 C5 107.270
C4 C6 H10 125.732 C5 C3 H7 130.939
C5 C6 H10 126.998 C6 C4 H8 130.939
C6 C5 H9 126.998
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability