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: mPW1PW91/6-31+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 mPW1PW91/6-31+G**
 hartrees
Energy at 0K-250.648053
Energy at 298.15K-250.657530
Nuclear repulsion energy211.084253
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 mPW1PW91/6-31+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' 3150 2999 29.83      
2 A' 3081 2933 31.69      
3 A' 3072 2924 4.44      
4 A' 3064 2916 24.74      
5 A' 3051 2904 23.46      
6 A' 2387 2272 18.89      
7 A' 1517 1444 11.31      
8 A' 1504 1432 1.46      
9 A' 1497 1425 1.10      
10 A' 1475 1404 4.22      
11 A' 1424 1355 4.60      
12 A' 1413 1345 0.96      
13 A' 1363 1297 1.92      
14 A' 1280 1219 0.58      
15 A' 1135 1080 4.74      
16 A' 1085 1033 0.20      
17 A' 1043 992 1.04      
18 A' 954 908 0.24      
19 A' 916 872 3.19      
20 A' 546 520 1.26      
21 A' 386 367 0.77      
22 A' 281 268 0.95      
23 A' 126 120 6.24      
24 A" 3144 2992 56.54      
25 A" 3135 2984 6.25      
26 A" 3115 2965 2.67      
27 A" 3087 2938 8.08      
28 A" 1508 1435 10.63      
29 A" 1339 1274 0.16      
30 A" 1320 1257 0.65      
31 A" 1245 1185 0.03      
32 A" 1141 1086 0.05      
33 A" 936 891 0.79      
34 A" 796 757 0.06      
35 A" 737 702 4.60      
36 A" 392 374 0.18      
37 A" 244 233 0.11      
38 A" 114 109 0.36      
39 A" 87 83 4.22      

Unscaled Zero Point Vibrational Energy (zpe) 29044.5 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 27644.5 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 mPW1PW91/6-31+G**
ABC
0.51117 0.04429 0.04202

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.409 0.000
C2 1.423 0.961 0.000
C3 1.461 2.485 0.000
C4 -0.021 -1.125 0.000
N5 -2.454 -2.094 0.000
C6 -1.374 -1.673 0.000
H7 2.489 2.855 0.000
H8 -0.543 0.775 0.878
H9 -0.543 0.775 -0.878
H10 1.960 0.580 0.877
H11 1.960 0.580 -0.877
H12 0.960 2.893 -0.883
H13 0.960 2.893 0.883
H14 0.503 -1.515 -0.879
H15 0.503 -1.515 0.879

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15
C11.52572.53801.53463.50532.49503.48981.09521.09522.15412.15412.80542.80542.17422.1742
C21.52571.52442.53684.93533.84172.17412.16062.16061.09711.09712.17422.17422.78292.7829
C32.53801.52443.90226.02395.03241.09292.77622.77622.15582.15581.09421.09424.20514.2051
C41.53462.53683.90222.61851.45964.70592.15752.15752.75712.75714.22944.22941.09541.0954
N53.50534.93536.02392.61851.15906.99473.55733.55735.23465.23466.10766.10763.13933.1393
C62.49503.84175.03241.45961.15905.95242.73082.73084.11844.11845.20375.20372.07912.0791
H73.48982.17411.09294.70596.99475.95243.78013.78012.49552.49551.76601.76604.87964.8796
H81.09522.16062.77622.15753.55732.73083.78011.75562.51053.06323.13752.59683.07012.5175
H91.09522.16062.77622.15753.55732.73083.78011.75563.06322.51052.59683.13752.51753.0701
H102.15411.09712.15582.75715.23464.11842.49552.51053.06321.75463.07402.52003.09732.5510
H112.15411.09712.15582.75715.23464.11842.49553.06322.51051.75462.52003.07402.55103.0973
H122.80542.17421.09424.22946.10765.20371.76603.13752.59683.07402.52001.76624.43104.7686
H132.80542.17421.09424.22946.10765.20371.76602.59683.13752.52003.07401.76624.76864.4310
H142.17422.78294.20511.09543.13932.07914.87963.07012.51753.09732.55104.43104.76861.7586
H152.17422.78294.20511.09543.13932.07914.87962.51753.07012.55103.09734.76864.43101.7586

picture of Pentanenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 112.630 C1 C2 H10 109.342
C1 C2 H11 109.342 C1 C4 C6 112.850
C1 C4 H14 110.408 C1 C4 H15 110.408
C2 C1 C4 111.983 C2 C1 H8 109.962
C2 C1 H9 109.962 C2 C3 H7 111.264
C2 C3 H12 111.193 C2 C3 H13 111.193
C3 C2 H10 109.561 C3 C2 H11 109.561
C4 C1 H8 109.112 C4 C1 H9 109.112
C4 C6 N5 179.208 C6 C4 H14 108.083
C6 C4 H15 108.083 H7 C3 H12 107.695
H7 C3 H13 107.695 H8 C1 H9 106.552
H10 C2 H11 106.199 H12 C3 H13 107.624
H14 C4 H15 106.782
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.318      
2 C -0.126      
3 C -0.650      
4 C 0.064      
5 N -0.469      
6 C -0.135      
7 H 0.173      
8 H 0.185      
9 H 0.185      
10 H 0.166      
11 H 0.166      
12 H 0.170      
13 H 0.170      
14 H 0.210      
15 H 0.210      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.958 1.993 0.000 4.432
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -48.595 -8.451 0.000
y -8.451 -42.735 0.000
z 0.000 0.000 -36.981
Traceless
 xyz
x -8.737 -8.451 0.000
y -8.451 0.053 0.000
z 0.000 0.000 8.684
Polar
3z2-r217.368
x2-y2-5.860
xy-8.451
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> 258.167
(<r2>)1/2 16.068