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: HF/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 HF/CEP-31G
 hartrees
Energy at 0K-41.048826
Energy at 298.15K-41.055958
Nuclear repulsion energy104.449882
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 HF/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 3418 3081 17.90      
2 A 3360 3029 27.22      
3 A 3311 2984 64.04      
4 A 3298 2973 78.93      
5 A 3282 2958 28.17      
6 A 3229 2910 35.49      
7 A 3208 2891 67.37      
8 A 2491 2245 56.50      
9 A 1834 1653 17.73      
10 A 1644 1482 12.07      
11 A 1635 1474 7.22      
12 A 1631 1470 6.12      
13 A 1562 1408 2.37      
14 A 1544 1392 1.19      
15 A 1478 1333 3.05      
16 A 1409 1270 0.32      
17 A 1368 1233 1.22      
18 A 1252 1129 2.33      
19 A 1208 1089 5.72      
20 A 1128 1017 3.63      
21 A 1105 996 2.67      
22 A 1032 931 7.23      
23 A 920 829 7.80      
24 A 886 799 31.90      
25 A 854 770 30.34      
26 A 719 648 0.51      
27 A 614 554 1.39      
28 A 429 386 0.12      
29 A 401 362 0.22      
30 A 255 230 0.95      
31 A 229 206 2.31      
32 A 162 146 4.61      
33 A 51 46 1.11      

Unscaled Zero Point Vibrational Energy (zpe) 25472.4 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 22960.8 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 HF/CEP-31G
ABC
0.24950 0.06482 0.05553

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.854 -0.147 -0.086
N2 -2.560 -1.072 -0.041
C3 -0.990 1.027 -0.152
H4 -1.469 1.940 -0.458
C5 0.331 0.987 0.148
H6 0.879 1.915 0.061
C7 1.131 -0.228 0.580
H8 0.486 -1.096 0.676
H9 1.552 -0.026 1.566
C10 2.287 -0.528 -0.409
H11 1.900 -0.773 -1.398
H12 2.954 0.329 -0.509
H13 2.877 -1.374 -0.056

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 C10 H11 H12 H13
C11.16371.45962.15512.47323.42743.05982.63763.78774.17154.02604.85054.8872
N21.16372.62313.23033.55404.55623.83693.12924.53694.89144.67155.70855.4449
C31.45962.62311.07571.35472.08022.57062.71473.24383.63643.62544.02104.5518
H42.15513.23031.07572.12432.40443.54063.78474.13384.49484.42664.70745.4794
C52.47323.55401.35472.12431.08141.51782.15492.12872.53672.81982.78323.4780
H63.42744.55622.08022.40441.08142.21953.09862.54742.85953.22502.67353.8500
C73.05983.83692.57063.54061.51782.21951.08601.09131.55062.19082.19512.1825
H82.63763.12922.71473.78472.15493.09861.08601.75302.17812.53093.08662.5155
H93.78774.53693.24384.13382.12872.54741.09131.75302.16663.07652.52952.4902
C104.17154.89143.63644.49482.53672.85951.55062.17812.16661.08991.09101.0892
H114.02604.67153.62544.42662.81983.22502.19082.53093.07651.08991.76541.7649
H124.85055.70854.02104.70742.78322.67352.19513.08662.52951.09101.76541.7638
H134.88725.44494.55185.47943.47803.85002.18252.51552.49021.08921.76491.7638

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 115.608 C1 C3 C5 122.952
N2 C1 C3 178.931 C3 C5 H6 116.835
C3 C5 C7 126.894 H4 C3 C5 121.441
C5 C7 H8 110.604 C5 C7 H9 108.236
C5 C7 C10 111.523 H6 C5 C7 116.268
C7 C10 H11 110.934 C7 C10 H12 111.205
C7 C10 H13 110.311 H8 C7 H9 107.246
H8 C7 C10 110.153 H9 C7 C10 108.949
H11 C10 H12 108.098 H11 C10 H13 108.180
H12 C10 H13 108.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.640      
2 N 0.345      
3 C -0.167      
4 H 0.271      
5 C -0.216      
6 H 0.205      
7 C -0.015      
8 H 0.142      
9 H 0.085      
10 C -0.366      
11 H 0.110      
12 H 0.106      
13 H 0.140      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.845 2.892 0.086 4.812
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.937 -6.644 1.173
y -6.644 -37.246 -0.745
z 1.173 -0.745 -37.905
Traceless
 xyz
x -7.361 -6.644 1.173
y -6.644 4.175 -0.745
z 1.173 -0.745 3.186
Polar
3z2-r26.372
x2-y2-7.690
xy-6.644
xz1.173
yz-0.745


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.375 1.195 0.599
y 1.195 7.563 -0.175
z 0.599 -0.175 5.313


<r2> (average value of r2) Å2
<r2> 162.176
(<r2>)1/2 12.735