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: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-247.027936
Energy at 298.15K-247.034900
HF Energy-246.457312
Nuclear repulsion energy197.628734
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 MP2/3-21G
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 3213 3067 4.96      
2 A 3179 3034 10.64      
3 A 3170 3026 20.70      
4 A 3162 3018 19.17      
5 A 3131 2989 1.85      
6 A 3088 2947 21.33      
7 A 3085 2945 8.65      
8 A 2135 2038 4.82      
9 A 1664 1588 0.50      
10 A 1604 1531 5.26      
11 A 1602 1529 6.97      
12 A 1579 1507 5.66      
13 A 1494 1426 2.85      
14 A 1466 1399 0.18      
15 A 1401 1337 0.46      
16 A 1357 1295 0.09      
17 A 1314 1254 0.57      
18 A 1191 1136 0.97      
19 A 1139 1088 5.86      
20 A 1010 964 2.67      
21 A 1006 960 1.43      
22 A 960 916 1.92      
23 A 857 818 3.58      
24 A 837 799 11.55      
25 A 800 764 34.69      
26 A 690 659 0.95      
27 A 604 577 3.46      
28 A 415 396 0.01      
29 A 397 378 0.64      
30 A 250 239 0.24      
31 A 219 209 2.85      
32 A 159 152 3.08      
33 A 50 47 0.75      

Unscaled Zero Point Vibrational Energy (zpe) 24112.4 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 23015.3 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 MP2/3-21G
ABC
0.23397 0.06824 0.05769

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.732 -0.108 -0.085
N2 -2.436 -1.063 0.009
C3 -0.875 1.042 -0.196
H4 -1.341 1.952 -0.563
C5 0.434 1.024 0.132
H6 1.007 1.943 0.008
C7 1.201 -0.188 0.621
H8 0.502 -1.008 0.825
H9 1.714 0.061 1.558
C10 2.249 -0.643 -0.438
H11 1.742 -0.927 -1.365
H12 2.951 0.168 -0.657
H13 2.814 -1.505 -0.068

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 C10 H11 H12 H13
C11.19011.43882.15102.45413.42323.01782.57443.82144.03273.79234.72674.7563
N21.19012.62893.25863.55124.57063.79043.04954.57004.72504.40035.56635.2694
C31.43882.62891.08671.34932.09642.54732.67183.27733.55783.47733.95184.4847
H42.15103.25861.08672.12012.41693.52773.75294.17254.43214.29424.64975.4282
C52.45413.55121.34932.12011.08931.51582.14832.14502.53012.78582.77373.4790
H63.42324.57062.09642.41691.08932.22543.10272.53812.90333.26512.71523.8932
C73.01783.79042.54733.52771.51582.22541.09651.09751.55772.18692.19622.1933
H82.57443.04952.67183.75292.14833.10271.09651.77462.18642.51823.09502.5281
H93.82144.57003.27734.17252.14502.53811.09751.77462.18363.08622.53992.5114
C104.03274.72503.55784.43212.53012.90331.55772.18642.18361.09431.09531.0948
H113.79234.40033.47734.29422.78583.26512.18692.51823.08621.09431.77861.7798
H124.72675.56633.95184.64972.77372.71522.19623.09502.53991.09531.77861.7789
H134.75635.26944.48475.42823.47903.89322.19332.52812.51141.09481.77981.7789

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 116.099 C1 C3 C5 123.293
N2 C1 C3 179.668 C3 C5 H6 118.163
C3 C5 C7 125.409 H4 C3 C5 120.608
C5 C7 H8 109.603 C5 C7 H9 109.288
C5 C7 C10 110.801 H6 C5 C7 116.396
C7 C10 H11 109.865 C7 C10 H12 110.539
C7 C10 H13 110.334 H8 C7 H9 107.970
H8 C7 C10 109.703 H9 C7 C10 109.425
H11 C10 H12 108.641 H11 C10 H13 108.782
H12 C10 H13 108.632
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.243     0.533
2 N -0.419     -0.457
3 C -0.184     -0.479
4 H 0.240     0.220
5 C -0.104     -0.074
6 H 0.205     0.143
7 C -0.456     0.046
8 H 0.217     0.055
9 H 0.209     0.027
10 C -0.522     -0.207
11 H 0.196     0.076
12 H 0.183     0.058
13 H 0.193     0.060


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.732 2.314 -0.129 3.583
CHELPG        
AIM        
ESP 2.696 2.310 -0.131 3.552


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.235 -5.127 1.230
y -5.127 -37.096 -0.785
z 1.230 -0.785 -37.807
Traceless
 xyz
x -4.784 -5.127 1.230
y -5.127 2.925 -0.785
z 1.230 -0.785 1.858
Polar
3z2-r23.717
x2-y2-5.139
xy-5.127
xz1.230
yz-0.785


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.619 0.905 0.580
y 0.905 7.268 -0.426
z 0.580 -0.426 4.718


<r2> (average value of r2) Å2
<r2> 199.343
(<r2>)1/2 14.119