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 C4H5N ((Z)-2-Butenenitrile)

using model chemistry: B3LYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/6-31+G**
 hartrees
Energy at 0K-210.170623
Energy at 298.15K-210.175148
Nuclear repulsion energy141.227983
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 B3LYP/6-31+G**
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 3199 3084 4.16      
2 A 3170 3056 9.35      
3 A 3136 3024 2.79      
4 A 3034 2925 10.35      
5 A 2327 2244 24.14      
6 A 1690 1630 16.75      
7 A 1486 1433 18.90      
8 A 1432 1380 6.56      
9 A 1401 1351 3.04      
10 A 1264 1218 0.68      
11 A 1125 1084 0.24      
12 A 969 935 15.07      
13 A 903 870 2.35      
14 A 665 641 1.40      
15 A 394 380 0.16      
16 A 158 152 4.71      
17 A 3084 2974 9.43      
18 A 1484 1431 10.06      
19 A 1068 1030 0.64      
20 A 984 949 0.90      
21 A 752 725 42.05      
22 A 529 510 3.28      
23 A 289 279 2.71      
24 A 147 141 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 17344.3 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 16723.4 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 B3LYP/6-31+G**
ABC
0.40440 0.11360 0.09017

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.227 0.251 0.000
N2 -2.238 -0.328 0.000
C3 0.000 0.987 0.000
H4 -0.098 2.069 0.000
C5 1.214 0.406 0.000
H6 2.076 1.071 0.000
C7 1.498 -1.062 0.000
H8 0.584 -1.660 0.000
H9 2.095 -1.335 0.879
H10 2.095 -1.335 -0.879

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 H10
C11.16481.43072.13962.44623.40373.02492.63253.78433.7843
N21.16482.59543.21263.52924.53543.80733.12004.53394.5339
C31.43072.59541.08631.34602.07822.53832.71053.24823.2482
H42.13963.21261.08632.11832.39283.51443.79064.14324.1432
C52.44623.52921.34602.11831.08871.49552.16032.13992.1399
H63.40374.53542.07822.39281.08872.21013.11232.56142.5614
C73.02493.80732.53833.51441.49552.21011.09251.09711.0971
H82.63253.12002.71053.79062.16033.11231.09251.77831.7783
H93.78434.53393.24824.14322.13992.56141.09711.77831.7590
H103.78434.53393.24824.14322.13992.56141.09711.77831.7590

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 115.757 C1 C3 C5 123.486
N2 C1 C3 178.850 C3 C5 H6 116.808
C3 C5 C7 126.500 H4 C3 C5 120.758
C5 C7 H8 112.237 C5 C7 H9 110.308
C5 C7 H10 110.308 H6 C5 C7 116.693
H8 C7 H9 108.614 H8 C7 H10 108.614
H9 C7 H10 106.575
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.005     0.581
2 N -0.507     -0.529
3 C 0.209     -0.565
4 H 0.167     0.234
5 C 0.059     0.155
6 H 0.145     0.087
7 C -0.584     -0.267
8 H 0.178     0.116
9 H 0.169     0.094
10 H 0.169     0.094


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.255 1.160 0.000 4.410
CHELPG        
AIM        
ESP 4.227 1.166 0.000 4.385


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.192 -2.629 0.000
y -2.629 -27.702 0.000
z 0.000 0.000 -31.399
Traceless
 xyz
x -6.641 -2.629 0.000
y -2.629 6.093 0.000
z 0.000 0.000 0.548
Polar
3z2-r21.096
x2-y2-8.490
xy-2.629
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.242 -0.018 0.000
y -0.018 7.116 0.000
z 0.000 0.000 5.045


<r2> (average value of r2) Å2
<r2> 127.698
(<r2>)1/2 11.300