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-249.032701
Energy at 298.15K-249.042509
HF Energy-249.032701
Nuclear repulsion energy211.651792
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' 3270 2938 51.95      
2 A' 3234 2906 20.00      
3 A' 3217 2891 25.61      
4 A' 3202 2877 21.84      
5 A' 3192 2868 34.78      
6 A' 2614 2349 16.84      
7 A' 1656 1488 3.77      
8 A' 1643 1476 0.39      
9 A' 1636 1470 1.36      
10 A' 1622 1457 2.49      
11 A' 1569 1410 1.02      
12 A' 1559 1400 1.77      
13 A' 1500 1348 2.28      
14 A' 1406 1264 2.85      
15 A' 1225 1101 3.25      
16 A' 1133 1018 0.16      
17 A' 1090 979 0.17      
18 A' 1004 902 1.79      
19 A' 961 864 5.97      
20 A' 593 532 0.91      
21 A' 408 367 0.96      
22 A' 307 276 2.08      
23 A' 137 123 7.09      
24 A" 3282 2949 54.51      
25 A" 3266 2935 55.59      
26 A" 3250 2921 2.22      
27 A" 3217 2890 9.84      
28 A" 1644 1477 5.98      
29 A" 1458 1310 0.16      
30 A" 1439 1293 0.66      
31 A" 1360 1222 0.00      
32 A" 1252 1125 0.01      
33 A" 1018 914 0.47      
34 A" 860 773 0.00      
35 A" 789 709 2.66      
36 A" 431 387 1.55      
37 A" 262 235 0.15      
38 A" 123 111 0.19      
39 A" 96 87 4.65      

Unscaled Zero Point Vibrational Energy (zpe) 30959.7 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 27817.3 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 HF/6-31G*
ABC
0.51157 0.04439 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 1.426 0.958 0.000
C3 1.462 2.485 0.000
C4 -0.019 -1.130 0.000
N5 -2.447 -2.080 0.000
C6 -1.388 -1.673 0.000
H7 2.484 2.850 0.000
H8 -0.537 0.767 0.871
H9 -0.537 0.767 -0.871
H10 1.958 0.583 0.871
H11 1.958 0.583 -0.871
H12 0.966 2.889 -0.877
H13 0.966 2.889 0.877
H14 0.494 -1.519 -0.873
H15 0.494 -1.519 0.873

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15
C11.52892.54251.53523.48812.49853.48511.08581.08582.15082.15082.80602.80602.16972.1697
C21.52891.52792.53864.92233.85152.16792.15592.15591.08781.08782.17082.17082.78622.7862
C32.54251.52793.90676.01055.04071.08502.77622.77622.15032.15031.08591.08594.21084.2108
C41.53522.53863.90672.60821.47294.70122.15122.15122.75722.75724.23014.23011.08451.0845
N53.48814.92236.01052.60821.13536.97303.53783.53785.22155.22156.09226.09223.11943.1194
C62.49853.85155.04071.47291.13535.95332.72682.72684.12854.12855.20765.20762.08042.0804
H73.48512.16791.08504.70126.97305.95333.77133.77132.48462.48461.75381.75384.87914.8791
H81.08582.15592.77622.15123.53782.72683.77131.74262.50253.04933.13362.60043.05492.5079
H91.08582.15592.77622.15123.53782.72683.77131.74263.04932.50252.60043.13362.50793.0549
H102.15081.08782.15032.75725.22154.12852.48462.50253.04931.74223.05972.51103.09902.5616
H112.15081.08782.15032.75725.22154.12852.48463.04932.50251.74222.51103.05972.56163.0990
H122.80602.17081.08594.23016.09225.20761.75383.13362.60043.05972.51101.75454.43334.7663
H132.80602.17081.08594.23016.09225.20761.75382.60043.13362.51103.05971.75454.76634.4333
H142.16972.78624.21081.08453.11942.08044.87913.05492.50793.09902.56164.43334.76631.7460
H152.16972.78624.21081.08453.11942.08044.87912.50793.05492.56163.09904.76634.43331.7460

picture of Pentanenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 112.555 C1 C2 H10 109.406
C1 C2 H11 109.406 C1 C4 C6 112.304
C1 C4 H14 110.655 C1 C4 H15 110.655
C2 C1 C4 111.884 C2 C1 H8 109.922
C2 C1 H9 109.922 C2 C3 H7 111.002
C2 C3 H12 111.172 C2 C3 H13 111.172
C3 C2 H10 109.435 C3 C2 H11 109.435
C4 C1 H8 109.119 C4 C1 H9 109.119
C4 C6 N5 179.432 C6 C4 H14 107.909
C6 C4 H15 107.909 H7 C3 H12 107.782
H7 C3 H13 107.782 H8 C1 H9 106.733
H10 C2 H11 106.416 H12 C3 H13 107.770
H14 C4 H15 107.214
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 -0.315      
2 C -0.313      
3 C -0.481      
4 C -0.360      
5 N -0.463      
6 C 0.302      
7 H 0.170      
8 H 0.184      
9 H 0.184      
10 H 0.162      
11 H 0.162      
12 H 0.164      
13 H 0.164      
14 H 0.220      
15 H 0.220      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.921 1.911 0.000 4.362
CHELPG 3.901 1.890 0.000 4.335
AIM -3.180 -1.154 0.000 3.383
ESP 3.931 1.905 0.000 4.368


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -48.820 -8.549 -0.006
y -8.549 -42.799 -0.007
z -0.006 -0.007 -37.007
Traceless
 xyz
x -8.917 -8.549 -0.006
y -8.549 0.114 -0.007
z -0.006 -0.007 8.803
Polar
3z2-r217.606
x2-y2-6.021
xy-8.549
xz-0.006
yz-0.007


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.912 1.508 0.002
y 1.508 7.979 0.001
z 0.002 0.001 6.469


<r2> (average value of r2) Å2
<r2> 257.731
(<r2>)1/2 16.054