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 ((Z)-2-Pentenenitrile)

using model chemistry: B1B95/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/CEP-31G
 hartrees
Energy at 0K-42.186807
Energy at 298.15K-42.193566
Nuclear repulsion energy103.790566
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 B1B95/CEP-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 3230 3093 11.92      
2 A 3181 3046 30.49      
3 A 3171 3036 49.15      
4 A 3164 3030 42.14      
5 A 3137 3004 0.80      
6 A 3069 2939 19.48      
7 A 3066 2936 45.72      
8 A 2265 2168 27.28      
9 A 1701 1629 16.58      
10 A 1514 1450 15.92      
11 A 1506 1442 10.98      
12 A 1497 1433 8.54      
13 A 1427 1366 6.43      
14 A 1411 1351 0.38      
15 A 1345 1288 0.39      
16 A 1289 1234 0.41      
17 A 1250 1196 0.68      
18 A 1148 1099 2.61      
19 A 1097 1051 5.27      
20 A 1058 1013 3.73      
21 A 1027 983 2.60      
22 A 977 935 5.98      
23 A 876 838 5.98      
24 A 813 779 22.58      
25 A 787 754 44.54      
26 A 664 636 1.49      
27 A 561 537 2.71      
28 A 392 375 0.17      
29 A 360 345 0.51      
30 A 233 224 0.59      
31 A 205 196 2.62      
32 A 145 139 3.87      
33 A 52 50 0.74      

Unscaled Zero Point Vibrational Energy (zpe) 23808.2 cm-1
Scaled (by 0.9575) Zero Point Vibrational Energy (zpe) 22796.3 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 B1B95/CEP-31G
ABC
0.24723 0.06447 0.05503

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.781 -0.106 -0.084
N2 -2.512 -1.046 -0.030
C3 -0.905 1.052 -0.155
H4 -1.369 1.992 -0.458
C5 0.434 0.982 0.140
H6 1.017 1.906 0.055
C7 1.189 -0.262 0.560
H8 0.506 -1.123 0.616
H9 1.593 -0.102 1.576
C10 2.369 -0.567 -0.402
H11 2.003 -0.778 -1.420
H12 3.066 0.285 -0.461
H13 2.934 -1.445 -0.053

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 C10 H11 H12 H13
C11.19191.45382.17022.47803.44953.04272.59893.76054.18804.06944.87814.9022
N21.19192.64563.27373.58044.60193.82823.08684.50824.91834.73165.75105.4608
C31.45382.64561.09121.37252.11372.57292.70443.25053.66073.66154.05634.5809
H42.17023.27371.09122.15112.44223.55783.79074.15854.53044.46904.75275.5223
C52.47803.58041.37252.15111.09621.51482.15952.14032.53742.82732.78883.4901
H63.44954.60192.11372.44221.09622.23333.12312.58412.85543.21752.66343.8624
C73.04273.82822.57293.55781.51482.23331.10011.10541.55302.20192.20642.1959
H82.59893.08682.70443.79072.15953.12311.10011.77432.19492.55053.11452.5395
H93.76054.50823.25054.15852.14032.58411.10541.77432.17503.09822.54322.5011
C104.18804.91833.66074.53042.53742.85541.55302.19492.17501.10171.10271.1012
H114.06944.73163.66154.46902.82733.21752.20192.55053.09821.10171.78331.7833
H124.87815.75104.05634.75272.78882.66342.20643.11452.54321.10271.78331.7825
H134.90225.46084.58095.52233.49013.86242.19592.53952.50111.10121.78331.7825

picture of (Z)-2-Pentenenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 116.294 C1 C3 C5 122.484
N2 C1 C3 179.246 C3 C5 H6 117.355
C3 C5 C7 125.958 H4 C3 C5 121.222
C5 C7 H8 110.345 C5 C7 H9 108.533
C5 C7 C10 111.597 H6 C5 C7 116.685
C7 C10 H11 110.939 C7 C10 H12 111.232
C7 C10 H13 110.494 H8 C7 H9 107.119
H8 C7 C10 110.475 H9 C7 C10 108.631
H11 C10 H12 107.993 H11 C10 H13 108.104
H12 C10 H13 107.955
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.693      
2 N 0.404      
3 C -0.177      
4 H 0.291      
5 C -0.263      
6 H 0.238      
7 C -0.084      
8 H 0.182      
9 H 0.118      
10 C -0.481      
11 H 0.146      
12 H 0.145      
13 H 0.174      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.614 2.663 0.054 4.489
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.749 -6.012 1.143
y -6.012 -35.738 -0.745
z 1.143 -0.745 -36.771
Traceless
 xyz
x -6.494 -6.012 1.143
y -6.012 4.022 -0.745
z 1.143 -0.745 2.473
Polar
3z2-r24.945
x2-y2-7.011
xy-6.012
xz1.143
yz-0.745


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.591 1.168 0.512
y 1.168 7.916 -0.237
z 0.512 -0.237 5.384


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000