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: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-249.302126
Energy at 298.15K-249.308990
Nuclear repulsion energy195.611238
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 B3PW91/6-31G
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' 3217 3081 2.95      
2 A' 3185 3051 9.45      
3 A' 3148 3015 26.49      
4 A' 3058 2928 18.81      
5 A' 3026 2898 18.29      
6 A' 2304 2207 33.43      
7 A' 1722 1649 25.77      
8 A' 1549 1484 9.47      
9 A' 1512 1448 16.59      
10 A' 1461 1400 9.81      
11 A' 1414 1354 3.19      
12 A' 1369 1311 1.42      
13 A' 1333 1277 4.83      
14 A' 1139 1091 2.59      
15 A' 1104 1057 2.83      
16 A' 1013 970 4.65      
17 A' 916 878 5.26      
18 A' 588 563 0.48      
19 A' 513 491 0.20      
20 A' 263 252 1.10      
21 A' 148 142 3.59      
22 A" 3141 3008 29.29      
23 A" 3055 2926 11.12      
24 A" 1545 1480 11.05      
25 A" 1314 1258 0.04      
26 A" 1137 1089 1.04      
27 A" 1017 974 41.39      
28 A" 892 855 10.14      
29 A" 768 736 2.34      
30 A" 485 464 4.10      
31 A" 276 265 0.03      
32 A" 179 171 0.04      
33 A" 123 118 3.64      

Unscaled Zero Point Vibrational Energy (zpe) 23957.2 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 22943.8 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 B3PW91/6-31G
ABC
0.48120 0.05138 0.04724

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.432 2.827 0.000
C2 -0.791 1.842 0.000
H3 1.076 0.810 0.000
C4 0.000 0.660 0.000
H5 -1.614 -0.682 0.000
C6 -0.529 -0.579 0.000
H7 -0.069 -2.452 0.873
H8 -0.069 -2.452 -0.873
C9 0.250 -1.861 0.000
H10 2.246 -2.707 0.000
H11 2.124 -1.183 -0.888
H12 2.124 -1.183 0.888
C13 1.772 -1.721 0.000

Atom - Atom Distances (Å)
  N1 C2 H3 C4 H5 C6 H7 H8 C9 H10 H11 H12 C13
N11.17543.21912.59793.51443.52385.52235.52234.98096.64565.43295.43295.5635
C21.17542.13371.42262.65522.43524.44154.44153.84675.47034.29384.29384.3891
H33.21912.13371.08643.07592.12233.56593.56592.79553.70652.41992.41992.6244
C42.59791.42261.08642.09911.34703.23323.23322.53324.04762.94862.94862.9677
H53.51442.65523.07592.09911.08962.50602.50602.20504.35893.87413.87413.5413
C63.52382.43522.12231.34701.08962.11752.11751.50033.49762.86202.86202.5688
H75.52234.44153.56593.23322.50602.11751.74531.10152.48773.08562.53442.1649
H85.52234.44153.56593.23322.50602.11751.74531.10152.48772.53443.08562.1649
C94.98093.84672.79552.53322.20501.50031.10151.10152.16842.18172.18171.5284
H106.64565.47033.70654.04764.35893.49762.48772.48772.16841.76821.76821.0946
H115.43294.29382.41992.94863.87412.86203.08562.53442.18171.76821.77511.0960
H125.43294.29382.41992.94863.87412.86202.53443.08562.18171.76821.77511.0960
C135.56354.38912.62442.96773.54132.56882.16492.16491.52841.09461.09601.0960

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 179.269 C2 C4 H3 115.867
C2 C4 C6 123.080 H3 C4 C6 121.054
C4 C6 H5 118.585 C4 C6 C9 125.590
H5 C6 C9 115.825 C6 C9 H7 107.968
C6 C9 H8 107.968 C6 C9 C13 116.019
H7 C9 H8 104.785 H7 C9 C13 109.745
H8 C9 C13 109.745 C9 C13 H10 110.428
C9 C13 H11 111.404 C9 C13 H12 111.404
H10 C13 H11 107.644 H10 C13 H12 107.644
H11 C13 H12 108.155
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.299      
2 C 0.057      
3 H 0.209      
4 C -0.110      
5 H 0.186      
6 C -0.078      
7 H 0.189      
8 H 0.189      
9 C -0.369      
10 H 0.173      
11 H 0.173      
12 H 0.173      
13 C -0.490      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.089 -4.464 0.000 4.928
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.464 7.107 0.000
y 7.107 -45.438 0.000
z 0.000 0.000 -36.948
Traceless
 xyz
x 3.730 7.107 0.000
y 7.107 -8.233 0.000
z 0.000 0.000 4.503
Polar
3z2-r29.006
x2-y27.975
xy7.107
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> 227.664
(<r2>)1/2 15.089