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All results from a given calculation for C4H5N ((Z)-2-Butenenitrile)

using model chemistry: PBEPBE/3-21G

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/3-21G
 hartrees
Energy at 0K-208.728665
Energy at 298.15K-208.733304
Nuclear repulsion energy140.883189
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/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 3121 3092 6.94      
2 A 3100 3072 4.09      
3 A 3070 3042 1.68      
4 A 2974 2946 5.92      
5 A 2231 2211 6.15      
6 A 1637 1622 8.42      
7 A 1496 1482 21.34      
8 A 1416 1403 16.62      
9 A 1403 1390 1.34      
10 A 1258 1246 1.34      
11 A 1118 1107 2.26      
12 A 960 951 16.52      
13 A 888 880 3.08      
14 A 688 681 1.41      
15 A 416 412 0.34      
16 A 166 165 3.24      
17 A 3025 2997 7.84      
18 A 1500 1486 12.76      
19 A 1063 1053 0.50      
20 A 967 959 0.92      
21 A 769 762 41.31      
22 A 571 566 13.67      
23 A 299 296 1.87      
24 A 164 162 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 17148.6 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 16992.6 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/3-21G
ABC
0.39311 0.11546 0.09078

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.214 0.258 0.000
N2 -2.222 -0.359 0.000
C3 0.000 0.999 0.000
H4 -0.098 2.090 0.000
C5 1.224 0.420 0.000
H6 2.104 1.073 0.000
C7 1.473 -1.063 0.000
H8 0.526 -1.627 0.000
H9 2.063 -1.354 0.890
H10 2.063 -1.354 -0.890

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 H10
C11.18131.42282.14542.44353.41762.99472.56483.75963.7596
N21.18132.60413.24163.53264.55733.76153.02574.48834.4883
C31.42282.60411.09521.35362.10582.53442.67773.25383.2538
H42.14543.24161.09522.12932.42573.52283.76844.16234.1623
C52.44353.53261.35362.12931.09641.50442.16272.15552.1555
H63.41764.55732.10582.42571.09642.22783.12772.58592.5859
C72.99473.76152.53443.52281.50442.22781.10251.10681.1068
H82.56483.02572.67773.76842.16273.12771.10251.79751.7975
H93.75964.48833.25384.16232.15552.58591.10681.79751.7799
H103.75964.48833.25384.16232.15552.58591.10681.79751.7799

picture of (Z)-2-Butenenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 116.265 C1 C3 C5 123.290
N2 C1 C3 179.917 C3 C5 H6 118.138
C3 C5 C7 124.858 H4 C3 C5 120.445
C5 C7 H8 111.183 C5 C7 H9 110.349
C5 C7 H10 110.349 H6 C5 C7 117.003
H8 C7 H9 108.901 H8 C7 H10 108.901
H9 C7 H10 107.048
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.298      
2 N -0.489      
3 C -0.193      
4 H 0.247      
5 C -0.131      
6 H 0.219      
7 C -0.663      
8 H 0.243      
9 H 0.234      
10 H 0.234      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.678 1.037 0.000 3.821
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.114 -2.445 0.000
y -2.445 -26.926 0.000
z 0.000 0.000 -30.938
Traceless
 xyz
x -5.182 -2.445 0.000
y -2.445 5.600 0.000
z 0.000 0.000 -0.418
Polar
3z2-r2-0.837
x2-y2-7.188
xy-2.445
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.620 -0.039 0.000
y -0.039 6.035 0.000
z 0.000 0.000 3.167


<r2> (average value of r2) Å2
<r2> 126.340
(<r2>)1/2 11.240