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: PBEPBE/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 PBEPBE/6-31G*
 hartrees
Energy at 0K-249.133932
Energy at 298.15K-249.140602
Nuclear repulsion energy194.971944
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 PBEPBE/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' 3122 3077 2.87      
2 A' 3104 3060 7.56      
3 A' 3074 3030 20.67      
4 A' 2991 2949 16.44      
5 A' 2952 2910 15.20      
6 A' 2254 2222 20.65      
7 A' 1658 1634 27.85      
8 A' 1489 1468 6.18      
9 A' 1442 1421 14.47      
10 A' 1395 1375 6.34      
11 A' 1349 1330 8.72      
12 A' 1304 1286 0.86      
13 A' 1267 1249 2.05      
14 A' 1095 1079 3.58      
15 A' 1057 1042 5.23      
16 A' 974 960 1.34      
17 A' 889 876 4.87      
18 A' 564 556 0.70      
19 A' 496 488 0.12      
20 A' 254 250 1.13      
21 A' 142 140 3.57      
22 A" 3064 3020 22.81      
23 A" 2975 2933 9.67      
24 A" 1483 1462 8.43      
25 A" 1258 1240 0.06      
26 A" 1072 1057 0.99      
27 A" 964 950 27.20      
28 A" 821 809 8.63      
29 A" 716 706 0.61      
30 A" 480 473 6.06      
31 A" 275 271 0.03      
32 A" 177 174 0.10      
33 A" 123 121 3.46      

Unscaled Zero Point Vibrational Energy (zpe) 23138.6 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 22807.7 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 PBEPBE/6-31G*
ABC
0.47896 0.05109 0.04698

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.458 2.823 0.000
C2 -0.809 1.841 0.000
H3 1.084 0.827 0.000
C4 0.000 0.666 0.000
H5 -1.616 -0.688 0.000
C6 -0.524 -0.583 0.000
H7 -0.061 -2.459 0.876
H8 -0.061 -2.459 -0.876
C9 0.264 -1.861 0.000
H10 2.269 -2.708 0.000
H11 2.140 -1.173 -0.893
H12 2.140 -1.173 0.893
C13 1.787 -1.717 0.000

Atom - Atom Distances (Å)
  N1 C2 H3 C4 H5 C6 H7 H8 C9 H10 H11 H12 C13
N11.17753.23232.60393.51433.53185.53365.53364.99076.67005.45105.45105.5809
C21.17752.14731.42642.65422.44034.45144.45143.85415.49254.31014.31014.4044
H33.23232.14731.09593.09622.13833.58833.58832.81033.72852.43142.43142.6394
C42.60391.42641.09592.10831.35403.24593.24592.54064.06612.95952.95952.9787
H53.51432.65423.09622.10831.09772.51492.51492.21644.37963.89193.89193.5560
C63.53182.44032.13831.35401.09772.12172.12171.50143.50972.87102.87102.5744
H75.53364.45143.58833.24592.51492.12171.75221.10942.50193.10322.54982.1759
H85.53364.45143.58833.24592.51492.12171.75221.10942.50192.54983.10322.1759
C94.99073.85412.81032.54062.21641.50141.10941.10942.17692.18912.18911.5302
H106.67005.49253.72854.06614.37963.50972.50192.50192.17691.78081.78081.1021
H115.45104.31012.43142.95953.89192.87103.10322.54982.18911.78081.78551.1036
H125.45104.31012.43142.95953.89192.87102.54983.10322.18911.78081.78551.1036
C135.58094.40442.63942.97873.55602.57442.17592.17591.53021.10211.10361.1036

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 178.919 C2 C4 H3 116.092
C2 C4 C6 122.700 H3 C4 C6 121.208
C4 C6 H5 118.235 C4 C6 C9 125.604
H5 C6 C9 116.161 C6 C9 H7 107.771
C6 C9 H8 107.771 C6 C9 C13 116.243
H7 C9 H8 104.320 H7 C9 C13 110.019
H8 C9 C13 110.019 C9 C13 H10 110.530
C9 C13 H11 111.406 C9 C13 H12 111.406
H10 C13 H11 107.679 H10 C13 H12 107.679
H11 C13 H12 107.976
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.473      
2 C 0.313      
3 H 0.185      
4 C -0.164      
5 H 0.168      
6 C -0.072      
7 H 0.182      
8 H 0.182      
9 C -0.341      
10 H 0.172      
11 H 0.173      
12 H 0.173      
13 C -0.498      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.082 -4.322 0.000 4.797
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.339 6.640 0.000
y 6.640 -44.459 0.000
z 0.000 0.000 -36.734
Traceless
 xyz
x 3.257 6.640 0.000
y 6.640 -7.422 0.000
z 0.000 0.000 4.165
Polar
3z2-r28.330
x2-y27.119
xy6.640
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.071 -2.081 0.000
y -2.081 13.093 0.000
z 0.000 0.000 5.135


<r2> (average value of r2) Å2
<r2> 228.579
(<r2>)1/2 15.119