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All results from a given calculation for C5H9N (Pentanenitrile)

using model chemistry: HF/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/3-21G
 hartrees
Energy at 0K-247.650338
Energy at 298.15K-247.660300
Nuclear repulsion energy211.400705
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 HF/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' 3259 2952 37.68      
2 A' 3226 2922 22.36      
3 A' 3218 2914 6.41      
4 A' 3198 2896 8.13      
5 A' 3195 2894 31.05      
6 A' 2586 2342 8.09      
7 A' 1676 1517 8.66      
8 A' 1663 1506 4.59      
9 A' 1654 1498 0.79      
10 A' 1641 1486 4.63      
11 A' 1578 1429 6.14      
12 A' 1520 1377 0.42      
13 A' 1504 1362 4.10      
14 A' 1436 1301 1.40      
15 A' 1227 1111 9.13      
16 A' 1089 987 0.08      
17 A' 1049 950 0.54      
18 A' 1008 913 0.34      
19 A' 941 852 7.16      
20 A' 632 572 2.31      
21 A' 410 371 1.00      
22 A' 326 295 1.41      
23 A' 145 132 5.09      
24 A" 3279 2969 47.02      
25 A" 3260 2952 25.06      
26 A" 3248 2942 0.90      
27 A" 3221 2917 2.80      
28 A" 1673 1515 9.30      
29 A" 1474 1335 0.10      
30 A" 1464 1326 0.46      
31 A" 1386 1255 0.01      
32 A" 1277 1157 0.18      
33 A" 1047 948 1.02      
34 A" 881 798 0.09      
35 A" 801 725 6.11      
36 A" 492 446 0.04      
37 A" 258 234 0.11      
38 A" 123 112 0.35      
39 A" 98 89 3.83      

Unscaled Zero Point Vibrational Energy (zpe) 31080.7 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 28146.7 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 HF/3-21G
ABC
0.50554 0.04443 0.04210

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.408 0.000
C2 1.449 0.928 0.000
C3 1.498 2.468 0.000
C4 -0.040 -1.140 0.000
N5 -2.480 -2.036 0.000
C6 -1.408 -1.648 0.000
H7 2.523 2.821 0.000
H8 -0.522 0.777 0.875
H9 -0.522 0.777 -0.875
H10 1.967 0.549 0.875
H11 1.967 0.549 -0.875
H12 1.003 2.866 -0.879
H13 1.003 2.866 0.879
H14 0.473 -1.521 -0.876
H15 0.473 -1.521 0.876

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15
C11.53912.54731.54823.48192.49233.49121.08381.08382.15782.15782.79662.79662.17032.1703
C21.53911.54072.54774.92133.84712.17652.16132.16131.08571.08572.17412.17412.77772.7777
C32.54731.54073.92196.00955.03911.08392.77612.77612.16082.16081.08451.08454.21044.2104
C41.54822.54773.92192.59971.46014.71752.16162.16162.76492.76494.23164.23161.08421.0842
N53.48194.92136.00952.59971.13966.97293.53763.53765.21785.21786.07746.07743.12293.1229
C62.49233.84715.03911.46011.13965.95232.72662.72664.12164.12165.19295.19292.07922.0792
H73.49122.17651.08394.71756.97295.95233.77033.77032.49742.49741.75661.75664.88044.8804
H81.08382.16132.77612.16163.53762.72663.77031.75102.49953.05153.12522.58643.05542.5034
H91.08382.16132.77612.16163.53762.72663.77031.75103.05152.49952.58643.12522.50343.0554
H102.15781.08572.16082.76495.21784.12162.49742.49953.05151.74993.06202.51013.09552.5525
H112.15781.08572.16082.76495.21784.12162.49743.05152.49951.74992.51013.06202.55253.0955
H122.79662.17411.08454.23166.07745.19291.75663.12522.58643.06202.51011.75764.41854.7543
H132.79662.17411.08454.23166.07745.19291.75662.58643.12522.51013.06201.75764.75434.4185
H142.17032.77774.21041.08423.12292.07924.88043.05542.50343.09552.55254.41854.75431.7526
H152.17032.77774.21041.08423.12292.07924.88042.50343.05542.55253.09554.75434.41851.7526

picture of Pentanenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 111.607 C1 C2 H10 109.370
C1 C2 H11 109.370 C1 C4 C6 111.850
C1 C4 H14 109.810 C1 C4 H15 109.810
C2 C1 C4 111.221 C2 C1 H8 109.753
C2 C1 H9 109.753 C2 C3 H7 110.850
C2 C3 H12 110.618 C2 C3 H13 110.618
C3 C2 H10 109.503 C3 C2 H11 109.503
C4 C1 H8 109.144 C4 C1 H9 109.144
C4 C6 N5 179.519 C6 C4 H14 108.712
C6 C4 H15 108.712 H7 C3 H12 108.205
H7 C3 H13 108.205 H8 C1 H9 107.754
H10 C2 H11 107.391 H12 C3 H13 108.248
H14 C4 H15 107.850
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.389 0.097   0.109
2 C -0.432 0.160   0.077
3 C -0.585 -0.225   -0.457
4 C -0.457 -0.124   -0.526
5 N -0.517 -0.507   -0.529
6 C 0.340 0.377   0.528
7 H 0.208 0.058   0.128
8 H 0.230 -0.006   0.027
9 H 0.230 -0.006   0.027
10 H 0.211 -0.031   0.022
11 H 0.211 -0.031   0.022
12 H 0.205 0.049   0.117
13 H 0.205 0.049   0.117
14 H 0.270 0.068   0.170
15 H 0.270 0.068   0.170


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.784 1.792 0.000 4.187
CHELPG 3.901 1.890 0.000 4.335
AIM        
ESP 3.785 1.780 0.000 4.183


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -49.150 -8.148 0.000
y -8.148 -42.479 0.000
z 0.000 0.000 -37.393
Traceless
 xyz
x -9.214 -8.148 0.000
y -8.148 0.792 0.000
z 0.000 0.000 8.422
Polar
3z2-r216.843
x2-y2-6.671
xy-8.148
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.504 1.487 0.000
y 1.487 7.547 0.000
z 0.000 0.000 6.072


<r2> (average value of r2) Å2
<r2> 257.786
(<r2>)1/2 16.056