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-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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-42.318285
Energy at 298.15K-42.325005
Nuclear repulsion energy102.687220
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-31G*
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' 3202 3092 3.15      
2 A' 3162 3054 10.33      
3 A' 3121 3014 41.95      
4 A' 3047 2943 22.26      
5 A' 3025 2921 24.20      
6 A' 2320 2240 42.19      
7 A' 1695 1637 25.08      
8 A' 1509 1457 5.12      
9 A' 1467 1416 10.49      
10 A' 1420 1372 5.73      
11 A' 1368 1321 13.01      
12 A' 1322 1277 1.12      
13 A' 1280 1236 1.34      
14 A' 1101 1063 2.77      
15 A' 1056 1020 5.49      
16 A' 979 945 2.50      
17 A' 889 858 4.55      
18 A' 563 544 0.19      
19 A' 494 477 0.12      
20 A' 253 245 1.05      
21 A' 145 140 3.45      
22 A" 3122 3015 49.30      
23 A" 3052 2947 17.93      
24 A" 1505 1453 8.64      
25 A" 1278 1234 0.43      
26 A" 1093 1055 5.33      
27 A" 1014 979 48.89      
28 A" 856 827 8.91      
29 A" 727 702 1.91      
30 A" 479 463 3.63      
31 A" 280 270 0.13      
32 A" 178 171 0.11      
33 A" 126 121 2.84      

Unscaled Zero Point Vibrational Energy (zpe) 23562.7 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 22754.5 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 B3LYP/CEP-31G*
ABC
0.47235 0.05026 0.04622

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.424 2.963 0.000
C2 -0.792 1.964 0.000
H3 1.085 0.877 0.000
C4 0.000 0.746 0.000
H5 -1.685 -0.535 0.000
C6 -0.589 -0.488 0.000
H7 -0.195 -2.392 0.879
H8 -0.195 -2.392 -0.879
C9 0.151 -1.815 0.000
H10 2.135 -2.732 0.000
H11 2.064 -1.192 -0.894
H12 2.064 -1.192 0.894
C13 1.693 -1.722 0.000

Atom - Atom Distances (Å)
  N1 C2 H3 C4 H5 C6 H7 H8 C9 H10 H11 H12 C13
N11.18263.26342.63503.50853.55095.56475.56475.03086.71635.49815.49815.6277
C21.18262.16911.45242.65402.46024.48384.48383.89435.53374.34884.34884.4455
H33.26342.16911.09273.10882.15983.61913.61912.84883.75862.45672.45672.6690
C42.63501.45241.09272.11701.36783.26533.26532.56544.08162.96882.96882.9933
H53.50852.65403.10882.11701.09662.53752.53752.23714.40663.90893.90893.5801
C63.55092.46022.15981.36781.09662.13412.13411.51903.52972.88642.88642.5945
H75.56474.48383.61913.26532.53752.13411.75831.10742.51403.11252.55812.1881
H85.56474.48383.61913.26532.53752.13411.75831.10742.51402.55813.11252.1881
C95.03083.89432.84882.56542.23711.51901.10741.10742.18652.20142.20141.5451
H106.71635.53373.75864.08164.40663.52972.51402.51402.18651.78231.78231.1026
H115.49814.34882.45672.96883.90892.88643.11252.55812.20141.78231.78781.1035
H125.49814.34882.45672.96883.90892.88642.55813.11252.20141.78231.78781.1035
C135.62774.44552.66902.99333.58012.59452.18812.18811.54511.10261.10351.1035

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 179.261 C2 C4 H3 116.202
C2 C4 C6 121.436 H3 C4 C6 122.362
C4 C6 H5 117.998 C4 C6 C9 125.335
H5 C6 C9 116.667 C6 C9 H7 107.662
C6 C9 H8 107.662 C6 C9 C13 115.721
H7 C9 H8 105.099 H7 C9 C13 110.066
H8 C9 C13 110.066 C9 C13 H10 110.221
C9 C13 H11 111.342 C9 C13 H12 111.342
H10 C13 H11 107.791 H10 C13 H12 107.791
H11 C13 H12 108.210
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.369      
2 C -0.690      
3 H 0.322      
4 C -0.136      
5 H 0.311      
6 C -0.291      
7 H 0.140      
8 H 0.140      
9 C -0.232      
10 H 0.200      
11 H 0.141      
12 H 0.141      
13 C -0.415      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.040 -4.671 0.000 5.097
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.254 7.277 0.000
y 7.277 -46.314 0.000
z 0.000 0.000 -37.018
Traceless
 xyz
x 4.413 7.277 0.000
y 7.277 -9.179 0.000
z 0.000 0.000 4.766
Polar
3z2-r29.532
x2-y29.061
xy7.277
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.058 -1.755 0.000
y -1.755 13.241 0.000
z 0.000 0.000 5.445


<r2> (average value of r2) Å2
<r2> 181.369
(<r2>)1/2 13.467