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: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-250.629383
Energy at 298.15K-250.638874
Nuclear repulsion energy211.109020
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 mPW1PW91/6-31G*
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' 3158 2995 29.76      
2 A' 3088 2928 35.03      
3 A' 3078 2919 3.31      
4 A' 3074 2915 19.11      
5 A' 3058 2900 20.29      
6 A' 2400 2276 13.33      
7 A' 1542 1463 7.65      
8 A' 1529 1450 1.25      
9 A' 1521 1442 1.01      
10 A' 1500 1423 3.34      
11 A' 1446 1371 3.39      
12 A' 1430 1356 0.66      
13 A' 1380 1308 2.52      
14 A' 1294 1227 0.97      
15 A' 1145 1085 5.04      
16 A' 1091 1035 0.27      
17 A' 1049 994 0.67      
18 A' 960 911 0.26      
19 A' 922 875 3.29      
20 A' 550 522 0.89      
21 A' 387 367 0.82      
22 A' 282 268 1.26      
23 A' 126 120 5.71      
24 A" 3152 2989 55.68      
25 A" 3139 2977 11.53      
26 A" 3118 2957 1.38      
27 A" 3093 2933 8.27      
28 A" 1533 1453 8.68      
29 A" 1353 1283 0.14      
30 A" 1335 1266 0.67      
31 A" 1260 1194 0.12      
32 A" 1155 1095 0.00      
33 A" 946 897 1.16      
34 A" 802 761 0.03      
35 A" 743 704 5.56      
36 A" 398 378 0.45      
37 A" 247 234 0.10      
38 A" 116 110 0.37      
39 A" 89 84 3.84      

Unscaled Zero Point Vibrational Energy (zpe) 29242.9 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 27731.1 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 mPW1PW91/6-31G*
ABC
0.50967 0.04434 0.04206

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.408 0.000
C2 1.422 0.960 0.000
C3 1.460 2.483 0.000
C4 -0.020 -1.126 0.000
N5 -2.455 -2.090 0.000
C6 -1.374 -1.673 0.000
H7 2.488 2.854 0.000
H8 -0.544 0.774 0.878
H9 -0.544 0.774 -0.878
H10 1.960 0.578 0.878
H11 1.960 0.578 -0.878
H12 0.958 2.891 -0.884
H13 0.958 2.891 0.884
H14 0.508 -1.513 -0.879
H15 0.508 -1.513 0.879

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15
C11.52572.53711.53463.50212.49373.48951.09561.09562.15432.15432.80422.80422.17332.1733
C21.52571.52402.53624.93273.84062.17402.16122.16121.09761.09762.17412.17412.77952.7795
C32.53711.52403.90116.01955.03021.09362.77572.77572.15632.15631.09481.09484.20144.2014
C41.53462.53623.90112.61831.45994.70522.15812.15812.75622.75624.22814.22811.09601.0960
N53.50214.93276.01952.61831.15856.99133.55323.55325.23255.23256.10216.10213.14353.1435
C62.49373.84065.03021.45991.15855.95092.72932.72934.11744.11745.20085.20082.08292.0829
H73.48952.17401.09364.70526.99135.95093.78043.78042.49612.49611.76741.76744.87584.8758
H81.09562.16122.77572.15813.55322.72933.78041.75602.51153.06423.13672.59543.07022.5177
H91.09562.16122.77572.15813.55322.72933.78041.75603.06422.51152.59543.13672.51773.0702
H102.15431.09762.15632.75625.23254.11742.49612.51153.06421.75503.07492.52063.09352.5464
H112.15431.09762.15632.75625.23254.11742.49613.06422.51151.75502.52063.07492.54643.0935
H122.80422.17411.09484.22816.10215.20081.76743.13672.59543.07492.52061.76714.42744.7654
H132.80422.17411.09484.22816.10215.20081.76742.59543.13672.52063.07491.76714.76544.4274
H142.17332.77954.20141.09603.14352.08294.87583.07022.51773.09352.54644.42744.76541.7582
H152.17332.77954.20141.09603.14352.08294.87582.51773.07022.54643.09354.76544.42741.7582

picture of Pentanenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 112.592 C1 C2 H10 109.336
C1 C2 H11 109.336 C1 C4 C6 112.740
C1 C4 H14 110.294 C1 C4 H15 110.294
C2 C1 C4 111.942 C2 C1 H8 109.987
C2 C1 H9 109.987 C2 C3 H7 111.242
C2 C3 H12 111.175 C2 C3 H13 111.175
C3 C2 H10 109.604 C3 C2 H11 109.604
C4 C1 H8 109.125 C4 C1 H9 109.125
C4 C6 N5 179.092 C6 C4 H14 108.322
C6 C4 H15 108.322 H7 C3 H12 107.730
H7 C3 H13 107.730 H8 C1 H9 106.518
H10 C2 H11 106.163 H12 C3 H13 107.614
H14 C4 H15 106.653
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.321      
2 C -0.320      
3 C -0.520      
4 C -0.405      
5 N -0.490      
6 C 0.367      
7 H 0.178      
8 H 0.189      
9 H 0.189      
10 H 0.169      
11 H 0.169      
12 H 0.175      
13 H 0.175      
14 H 0.222      
15 H 0.222      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.751 1.885 0.000 4.198
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.224 -8.038 0.000
y -8.038 -41.607 0.000
z 0.000 0.000 -36.262
Traceless
 xyz
x -8.289 -8.038 0.000
y -8.038 0.136 0.000
z 0.000 0.000 8.153
Polar
3z2-r216.307
x2-y2-5.617
xy-8.038
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> 257.290
(<r2>)1/2 16.040