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 C5H9N (Pentanenitrile)

using model chemistry: HF/6-31G**

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/6-31G**
 hartrees
Energy at 0K-249.046676
Energy at 298.15K-249.056493
Nuclear repulsion energy211.665583
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/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' 3253 2936 50.62      
2 A' 3215 2902 19.79      
3 A' 3198 2886 24.79      
4 A' 3181 2871 22.01      
5 A' 3172 2863 35.24      
6 A' 2613 2358 17.46      
7 A' 1639 1479 4.24      
8 A' 1626 1468 0.38      
9 A' 1619 1462 1.35      
10 A' 1604 1448 2.73      
11 A' 1556 1404 0.81      
12 A' 1547 1396 2.21      
13 A' 1489 1344 2.20      
14 A' 1395 1259 2.62      
15 A' 1219 1101 3.23      
16 A' 1129 1019 0.14      
17 A' 1086 980 0.18      
18 A' 1001 903 1.75      
19 A' 959 865 5.67      
20 A' 592 534 0.90      
21 A' 408 369 0.96      
22 A' 307 277 2.07      
23 A' 137 124 7.08      
24 A" 3265 2947 50.63      
25 A" 3250 2933 56.10      
26 A" 3234 2919 2.29      
27 A" 3199 2888 10.13      
28 A" 1627 1469 6.07      
29 A" 1448 1307 0.16      
30 A" 1429 1290 0.59      
31 A" 1350 1219 0.00      
32 A" 1243 1122 0.02      
33 A" 1011 913 0.49      
34 A" 855 772 0.00      
35 A" 786 709 2.86      
36 A" 431 389 1.50      
37 A" 262 237 0.15      
38 A" 123 111 0.17      
39 A" 96 86 4.70      

Unscaled Zero Point Vibrational Energy (zpe) 30775.5 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 27777.9 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/6-31G**
ABC
0.51239 0.04438 0.04210

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.405 0.000
C2 1.425 0.957 0.000
C3 1.465 2.484 0.000
C4 -0.020 -1.130 0.000
N5 -2.449 -2.078 0.000
C6 -1.389 -1.671 0.000
H7 2.488 2.847 0.000
H8 -0.537 0.767 0.872
H9 -0.537 0.767 -0.872
H10 1.958 0.581 0.871
H11 1.958 0.581 -0.871
H12 0.970 2.889 -0.877
H13 0.970 2.889 0.877
H14 0.491 -1.520 -0.874
H15 0.491 -1.520 0.874

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15
C11.52852.54351.53483.48752.49793.48641.08621.08622.15062.15062.80722.80722.17042.1704
C21.52851.52752.53844.92153.85062.16862.15582.15581.08821.08822.17032.17032.78792.7879
C32.54351.52753.90716.01125.04111.08522.77792.77792.15002.15001.08611.08614.21264.2126
C41.53482.53843.90712.60721.47194.70192.15092.15092.75702.75704.23084.23081.08491.0849
N53.48754.92156.01122.60721.13546.97373.53713.53715.22065.22066.09336.09333.11723.1172
C62.49793.85065.04111.47191.13545.95372.72622.72624.12754.12755.20845.20842.07852.0785
H73.48642.16861.08524.70196.97375.95373.77333.77332.48492.48491.75411.75414.88124.8812
H81.08622.15582.77792.15093.53712.72623.77331.74312.50273.04973.13532.60223.05572.5083
H91.08622.15582.77792.15093.53712.72623.77331.74313.04972.50272.60223.13532.50833.0557
H102.15061.08822.15002.75705.22064.12752.48492.50273.04971.74223.05952.51073.10052.5630
H112.15061.08822.15002.75705.22064.12752.48493.04972.50271.74222.51073.05952.56303.1005
H122.80722.17031.08614.23086.09335.20841.75413.13532.60223.05952.51071.75474.43514.7682
H132.80722.17031.08614.23086.09335.20841.75412.60223.13532.51073.05951.75474.76824.4351
H142.17042.78794.21261.08493.11722.07854.88123.05572.50833.10052.56304.43514.76821.7472
H152.17042.78794.21261.08493.11722.07854.88122.50833.05572.56303.10054.76824.43511.7472

picture of Pentanenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 112.672 C1 C2 H10 109.398
C1 C2 H11 109.398 C1 C4 C6 112.340
C1 C4 H14 110.716 C1 C4 H15 110.716
C2 C1 C4 111.922 C2 C1 H8 109.926
C2 C1 H9 109.926 C2 C3 H7 111.064
C2 C3 H12 111.150 C2 C3 H13 111.150
C3 C2 H10 109.410 C3 C2 H11 109.410
C4 C1 H8 109.101 C4 C1 H9 109.101
C4 C6 N5 179.416 C6 C4 H14 107.802
C6 C4 H15 107.802 H7 C3 H12 107.774
H7 C3 H13 107.774 H8 C1 H9 106.723
H10 C2 H11 106.354 H12 C3 H13 107.767
H14 C4 H15 107.263
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.218 0.093    
2 C -0.224 0.144    
3 C -0.336 -0.226    
4 C -0.251 -0.131    
5 N -0.464 -0.508    
6 C 0.287 0.379    
7 H 0.121 0.060    
8 H 0.137 -0.003    
9 H 0.137 -0.003    
10 H 0.115 -0.025    
11 H 0.115 -0.025    
12 H 0.117 0.051    
13 H 0.117 0.051    
14 H 0.173 0.072    
15 H 0.173 0.072    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.938 1.927 0.000 4.384
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -48.801 -8.555 0.000
y -8.555 -42.695 0.000
z 0.000 0.000 -36.993
Traceless
 xyz
x -8.957 -8.555 0.000
y -8.555 0.202 0.000
z 0.000 0.000 8.755
Polar
3z2-r217.510
x2-y2-6.106
xy-8.555
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.025 1.537 0.000
y 1.537 8.122 0.000
z 0.000 0.000 6.549


<r2> (average value of r2) Å2
<r2> 257.702
(<r2>)1/2 16.053