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: BLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-31+G**
 hartrees
Energy at 0K-250.586968
Energy at 298.15K-250.596236
Nuclear repulsion energy208.523991
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 BLYP/6-31+G**
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' 3028 3012 38.53      
2 A' 2970 2954 48.59      
3 A' 2960 2944 15.77      
4 A' 2958 2942 11.38      
5 A' 2939 2923 25.94      
6 A' 2248 2236 14.87      
7 A' 1478 1470 7.67      
8 A' 1465 1457 0.77      
9 A' 1456 1449 1.21      
10 A' 1437 1429 3.06      
11 A' 1380 1373 2.00      
12 A' 1354 1346 0.25      
13 A' 1317 1310 3.33      
14 A' 1245 1238 3.06      
15 A' 1086 1080 3.44      
16 A' 1017 1011 0.14      
17 A' 972 967 1.22      
18 A' 907 902 0.05      
19 A' 871 866 2.11      
20 A' 518 515 1.65      
21 A' 370 368 0.70      
22 A' 270 269 0.74      
23 A' 122 121 5.92      
24 A" 3024 3008 74.89      
25 A" 3013 2997 9.75      
26 A" 2990 2974 0.34      
27 A" 2965 2949 10.79      
28 A" 1467 1460 8.80      
29 A" 1297 1290 0.20      
30 A" 1278 1271 0.65      
31 A" 1207 1201 0.01      
32 A" 1106 1100 0.07      
33 A" 910 905 0.49      
34 A" 775 771 0.08      
35 A" 720 716 3.47      
36 A" 368 367 0.14      
37 A" 235 234 0.11      
38 A" 111 111 0.47      
39 A" 83 83 3.90      

Unscaled Zero Point Vibrational Energy (zpe) 27956.8 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 27808.6 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 BLYP/6-31+G**
ABC
0.50233 0.04308 0.04090

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.416 0.000
C2 1.442 0.972 0.000
C3 1.492 2.515 0.000
C4 -0.030 -1.142 0.000
N5 -2.491 -2.117 0.000
C6 -1.396 -1.694 0.000
H7 2.532 2.879 0.000
H8 -0.547 0.785 0.885
H9 -0.547 0.785 -0.885
H10 1.982 0.586 0.885
H11 1.982 0.586 -0.885
H12 0.991 2.931 -0.891
H13 0.991 2.931 0.891
H14 0.501 -1.533 -0.886
H15 0.501 -1.533 0.886

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15
C11.54542.57541.55783.55262.52943.53251.10381.10382.17742.17742.84632.84632.19842.1984
C21.54541.54452.57545.00093.89302.19702.18472.18471.10611.10612.19922.19922.81802.8180
C32.57541.54453.96106.10925.10411.10212.81672.81672.17872.17871.10321.10324.26054.2605
C41.55782.57543.96102.64731.47294.76762.18202.18202.79572.79574.29214.29211.10461.1046
N53.55265.00096.10922.64731.17447.08473.60343.60345.30095.30096.19686.19683.17503.1750
C62.52943.89305.10411.47291.17446.02792.76522.76524.17004.17005.27985.27982.09972.0997
H73.53252.19701.10214.76767.08476.02793.82733.82732.51872.51871.78081.78084.93684.9368
H81.10382.18472.81672.18203.60342.76523.82731.77052.53693.09323.18192.64033.09922.5432
H91.10382.18472.81672.18203.60342.76523.82731.77053.09322.53692.64033.18192.54323.0992
H102.17741.10612.17872.79575.30094.17002.51872.53693.09321.76913.10412.54643.13302.5848
H112.17741.10612.17872.79575.30094.17002.51873.09322.53691.76912.54643.10412.58483.1330
H122.84632.19921.10324.29216.19685.27981.78083.18192.64033.10412.54641.78134.49054.8292
H132.84632.19921.10324.29216.19685.27981.78082.64033.18192.54643.10411.78134.82924.4905
H142.19842.81804.26051.10463.17502.09974.93683.09922.54323.13302.58484.49054.82921.7719
H152.19842.81804.26051.10463.17502.09974.93682.54323.09922.58483.13304.82924.49051.7719

picture of Pentanenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 112.921 C1 C2 H10 109.297
C1 C2 H11 109.297 C1 C4 C6 113.114
C1 C4 H14 110.162 C1 C4 H15 110.162
C2 C1 C4 112.179 C2 C1 H8 109.995
C2 C1 H9 109.995 C2 C3 H7 111.115
C2 C3 H12 111.226 C2 C3 H13 111.226
C3 C2 H10 109.451 C3 C2 H11 109.451
C4 C1 H8 108.934 C4 C1 H9 108.934
C4 C6 N5 179.124 C6 C4 H14 108.256
C6 C4 H15 108.256 H7 C3 H12 107.712
H7 C3 H13 107.712 H8 C1 H9 106.639
H10 C2 H11 106.202 H12 C3 H13 107.676
H14 C4 H15 106.659
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.188      
2 C -0.069      
3 C -0.648      
4 C -0.090      
5 N -0.522      
6 C 0.130      
7 H 0.148      
8 H 0.154      
9 H 0.154      
10 H 0.138      
11 H 0.138      
12 H 0.149      
13 H 0.149      
14 H 0.179      
15 H 0.179      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.933 1.983 0.000 4.405
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -49.637 -8.498 0.000
y -8.498 -43.617 0.000
z 0.000 0.000 -37.791
Traceless
 xyz
x -8.933 -8.498 0.000
y -8.498 0.097 0.000
z 0.000 0.000 8.837
Polar
3z2-r217.673
x2-y2-6.020
xy-8.498
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 265.017
(<r2>)1/2 16.279