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: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-43.498535
Energy at 298.15K-43.507932
Nuclear repulsion energy114.495635
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 B3LYP/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3072 2994 59.15      
2 A' 3010 2933 43.73      
3 A' 3000 2923 16.64      
4 A' 2983 2907 27.69      
5 A' 2973 2897 44.78      
6 A' 2233 2176 11.38      
7 A' 1534 1495 13.13      
8 A' 1520 1481 1.26      
9 A' 1513 1474 1.57      
10 A' 1499 1461 5.00      
11 A' 1434 1397 5.13      
12 A' 1393 1358 0.43      
13 A' 1360 1325 2.97      
14 A' 1293 1260 0.18      
15 A' 1126 1097 5.85      
16 A' 1068 1041 0.16      
17 A' 1015 989 0.57      
18 A' 924 900 0.11      
19 A' 893 870 5.51      
20 A' 525 512 3.42      
21 A' 376 366 0.66      
22 A' 275 268 0.44      
23 A' 124 121 5.11      
24 A" 3075 2997 128.84      
25 A" 3065 2987 3.84      
26 A" 3043 2966 1.90      
27 A" 3010 2933 10.19      
28 A" 1522 1483 9.30      
29 A" 1328 1294 0.15      
30 A" 1311 1278 0.35      
31 A" 1245 1213 0.00      
32 A" 1149 1120 0.21      
33 A" 943 919 0.61      
34 A" 801 781 0.13      
35 A" 740 721 4.94      
36 A" 367 357 0.07      
37 A" 229 224 0.08      
38 A" 105 102 0.12      
39 A" 80 78 4.04      

Unscaled Zero Point Vibrational Energy (zpe) 28577.3 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 27848.6 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 B3LYP/CEP-121G
ABC
0.49714 0.04286 0.04066

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.359 0.000
C2 1.518 0.679 0.000
C3 1.805 2.203 0.000
C4 -0.270 -1.179 0.000
N5 -2.876 -1.750 0.000
C6 -1.717 -1.508 0.000
H7 2.885 2.401 0.000
H8 -0.477 0.809 0.882
H9 -0.477 0.809 -0.882
H10 1.989 0.217 0.883
H11 1.989 0.217 -0.883
H12 1.374 2.686 -0.888
H13 1.374 2.686 0.888
H14 0.191 -1.643 -0.883
H15 0.191 -1.643 0.883

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15
C11.55172.58001.56123.56642.53673.53451.09931.09932.18082.18082.84482.84482.19652.1965
C21.55171.55052.57835.02103.90552.19862.18562.18561.10181.10182.19992.19992.81682.8168
C32.58001.55053.96706.12645.11601.09802.81562.81562.18082.18081.09911.09914.26324.2632
C41.56122.57833.96702.66841.48484.77152.18452.18452.79822.79824.29304.29301.09901.0990
N53.56645.02106.12642.66841.18377.10063.61683.61685.32165.32166.20736.20733.19353.1935
C62.53673.90555.11601.48481.18376.03832.77202.77204.18264.18265.28555.28552.10722.1072
H73.53452.19861.09804.77157.10066.03833.82303.82302.52032.52031.77541.77544.93914.9391
H81.09932.18562.81562.18453.61682.77203.82301.76492.53613.08993.17572.63653.09442.5411
H91.09932.18562.81562.18453.61682.77203.82301.76493.08992.53612.63653.17572.54113.0944
H102.18081.10182.18082.79825.32164.18262.52032.53613.08991.76533.10022.54503.13262.5874
H112.18081.10182.18082.79825.32164.18262.52033.08992.53611.76532.54503.10022.58743.1326
H122.84482.19991.09914.29306.20735.28551.77543.17572.63653.10022.54501.77564.48834.8251
H132.84482.19991.09914.29306.20735.28551.77542.63653.17572.54503.10021.77564.82514.4883
H142.19652.81684.26321.09903.19352.10724.93913.09442.54113.13262.58744.48834.82511.7667
H152.19652.81684.26321.09903.19352.10724.93912.54113.09442.58743.13264.82514.48831.7667

picture of Pentanenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 112.541 C1 C2 H10 109.373
C1 C2 H11 109.373 C1 C4 C6 112.751
C1 C4 H14 110.106 C1 C4 H15 110.106
C2 C1 C4 111.846 C2 C1 H8 109.888
C2 C1 H9 109.888 C2 C3 H7 111.068
C2 C3 H12 111.114 C2 C3 H13 111.114
C3 C2 H10 109.451 C3 C2 H11 109.451
C4 C1 H8 109.150 C4 C1 H9 109.150
C4 C6 N5 178.986 C6 C4 H14 108.354
C6 C4 H15 108.354 H7 C3 H12 107.816
H7 C3 H13 107.816 H8 C1 H9 106.781
H10 C2 H11 106.468 H12 C3 H13 107.755
H14 C4 H15 106.978
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.266      
2 C -0.193      
3 C -0.477      
4 C -0.289      
5 N 0.244      
6 C -0.376      
7 H 0.154      
8 H 0.147      
9 H 0.147      
10 H 0.129      
11 H 0.129      
12 H 0.146      
13 H 0.146      
14 H 0.180      
15 H 0.180      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.183 1.304 0.000 4.382
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -52.268 -7.479 0.000
y -7.479 -40.608 0.000
z 0.000 0.000 -37.205
Traceless
 xyz
x -13.362 -7.479 0.000
y -7.479 4.128 0.000
z 0.000 0.000 9.234
Polar
3z2-r218.467
x2-y2-11.660
xy-7.479
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.877 1.602 0.000
y 1.602 8.817 0.000
z 0.000 0.000 7.330


<r2> (average value of r2) Å2
<r2> 208.304
(<r2>)1/2 14.433