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 C5H7N ((E)-2-Pentenenitrile)

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-42.268079
Energy at 298.15K-42.274888
Nuclear repulsion energy102.711142
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' 3166 3086 6.14      
2 A' 3125 3045 14.81      
3 A' 3082 3004 46.62      
4 A' 2992 2916 24.73      
5 A' 2971 2895 30.46      
6 A' 2212 2155 33.75      
7 A' 1664 1622 22.47      
8 A' 1530 1491 8.93      
9 A' 1499 1460 14.95      
10 A' 1438 1401 8.05      
11 A' 1386 1351 5.78      
12 A' 1338 1304 1.69      
13 A' 1305 1271 4.33      
14 A' 1111 1083 1.85      
15 A' 1069 1042 2.38      
16 A' 976 951 4.79      
17 A' 886 864 5.38      
18 A' 566 552 0.08      
19 A' 500 487 0.35      
20 A' 256 250 0.92      
21 A' 147 143 3.29      
22 A" 3077 2999 49.98      
23 A" 3000 2924 17.25      
24 A" 1528 1489 10.63      
25 A" 1288 1255 0.48      
26 A" 1118 1089 1.75      
27 A" 1006 980 42.50      
28 A" 868 845 7.40      
29 A" 753 734 1.86      
30 A" 475 463 2.24      
31 A" 274 267 0.08      
32 A" 174 170 0.08      
33 A" 122 118 3.40      

Unscaled Zero Point Vibrational Energy (zpe) 23450.3 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 22852.3 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 B3LYP/CEP-121G
ABC
0.47399 0.05006 0.04605

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)
N1 -1.342 3.010 0.000
C2 -0.746 1.984 0.000
H3 1.083 0.847 0.000
C4 0.000 0.745 0.000
H5 -1.696 -0.515 0.000
C6 -0.605 -0.475 0.000
H7 -0.245 -2.388 0.875
H8 -0.245 -2.388 -0.875
C9 0.110 -1.817 0.000
H10 2.067 -2.784 0.000
H11 2.042 -1.252 -0.889
H12 2.042 -1.252 0.889
C13 1.656 -1.767 0.000

Atom - Atom Distances (Å)
  N1 C2 H3 C4 H5 C6 H7 H8 C9 H10 H11 H12 C13
N11.18693.24972.63273.54333.56215.57745.57745.04096.72295.51425.51425.6401
C21.18692.15361.44592.67362.46264.48634.48633.89605.53604.36264.36264.4541
H33.24972.15361.08763.09492.14353.60383.60382.83583.76172.47252.47252.6758
C42.63271.44591.08762.11331.36173.26193.26192.56464.09022.99142.99143.0090
H53.54332.67363.09492.11331.09222.52572.52572.22644.39473.91293.91293.5785
C63.56212.46262.14351.36171.09222.13412.13411.52073.53192.89862.89862.6043
H75.57744.48633.60383.26192.52572.13411.75001.10302.50353.10382.55362.1824
H85.57744.48633.60383.26192.52572.13411.75001.10302.50352.55363.10382.1824
C95.04093.89602.83582.56462.22641.52071.10301.10302.18342.20132.20131.5471
H106.72295.53603.76174.09024.39473.53192.50352.50352.18341.77211.77211.0970
H115.51424.36262.47252.99143.91292.89863.10382.55362.20131.77211.77881.0982
H125.51424.36262.47252.99143.91292.89862.55363.10382.20131.77211.77881.0982
C135.64014.45412.67583.00903.57852.60432.18242.18241.54711.09701.09821.0982

picture of (E)-2-Pentenenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C4 179.071 C2 C4 H3 115.709
C2 C4 C6 122.566 H3 C4 C6 121.725
C4 C6 H5 118.498 C4 C6 C9 125.593
H5 C6 C9 115.909 C6 C9 H7 107.797
C6 C9 H8 107.797 C6 C9 C13 116.180
H7 C9 H8 104.983 H7 C9 C13 109.739
H8 C9 C13 109.739 C9 C13 H10 110.169
C9 C13 H11 111.511 C9 C13 H12 111.511
H10 C13 H11 107.661 H10 C13 H12 107.661
H11 C13 H12 108.165
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 N 0.245      
2 C -0.557      
3 H 0.194      
4 C 0.025      
5 H 0.175      
6 C -0.065      
7 H 0.162      
8 H 0.162      
9 C -0.326      
10 H 0.157      
11 H 0.157      
12 H 0.157      
13 C -0.485      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.906 -4.697 0.000 5.068
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.807 7.230 0.000
y 7.230 -48.052 0.000
z 0.000 0.000 -37.725
Traceless
 xyz
x 5.081 7.230 0.000
y 7.230 -10.285 0.000
z 0.000 0.000 5.205
Polar
3z2-r210.409
x2-y210.244
xy7.230
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.285 -1.519 0.000
y -1.519 13.719 0.000
z 0.000 0.000 5.831


<r2> (average value of r2) Å2
<r2> 182.478
(<r2>)1/2 13.508