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

using model chemistry: B1B95/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G(2df,p)
 hartrees
Energy at 0K-210.067492
Energy at 298.15K-210.071952
Nuclear repulsion energy138.857613
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 B1B95/6-31G(2df,p)
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' 3191 3056 7.84      
2 A' 3184 3049 3.32      
3 A' 3150 3017 7.92      
4 A' 3047 2918 10.15      
5 A' 2362 2262 21.82      
6 A' 1724 1651 23.75      
7 A' 1477 1414 16.06      
8 A' 1400 1340 1.56      
9 A' 1326 1270 0.59      
10 A' 1301 1246 1.07      
11 A' 1135 1087 0.11      
12 A' 1052 1007 6.63      
13 A' 907 869 7.68      
14 A' 567 543 0.14      
15 A' 396 379 1.77      
16 A' 175 167 4.30      
17 A" 3110 2979 7.20      
18 A" 1467 1405 7.39      
19 A" 1064 1019 0.87      
20 A" 996 954 30.03      
21 A" 813 779 0.99      
22 A" 510 488 5.31      
23 A" 206 197 1.72      
24 A" 176 169 0.91      

Unscaled Zero Point Vibrational Energy (zpe) 17367.4 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 16632.8 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 B1B95/6-31G(2df,p)
ABC
1.29591 0.07695 0.07362

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.648 0.414 0.000
H2 2.623 -1.129 0.876
H3 2.623 -1.129 -0.876
C4 2.240 -0.597 0.000
H5 0.258 -1.562 0.000
C6 0.754 -0.595 0.000
H7 0.452 1.493 0.000
C8 0.000 0.507 0.000
N9 -2.577 0.459 0.000
C10 -1.421 0.469 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.77431.77431.09063.10092.14652.44732.65005.22614.0694
H21.77431.75271.09442.55922.13273.51553.21335.50804.4359
H31.77431.75271.09442.55922.13273.51553.21335.50804.4359
C41.09061.09441.09442.20361.48592.75082.49714.93153.8126
H53.10092.55922.55922.20361.08643.06152.08483.48212.6354
C62.14652.13272.13271.48591.08642.11021.33503.49402.4210
H72.44733.51553.51552.75083.06152.11021.08533.20142.1345
C82.65003.21333.21332.49712.08481.33501.08532.57791.4212
N95.22615.50805.50804.93153.48213.49403.20142.57791.1569
C104.06944.43594.43593.81262.63542.42102.13451.42121.1569

picture of (E)-2-Butenenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C4 H2 108.584 H1 C4 H3 108.584
H1 C4 C6 111.921 H2 C4 H3 106.413
H2 C4 C6 110.577 H3 C4 C6 110.577
C4 C6 H5 117.042 C4 C6 C8 124.465
H5 C6 C8 118.494 C6 C8 H7 121.006
C6 C8 C10 122.866 H7 C8 C10 116.128
C8 C10 N9 179.020
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.143      
2 H 0.157      
3 H 0.157      
4 C -0.453      
5 H 0.138      
6 C -0.023      
7 H 0.146      
8 C -0.209      
9 N -0.338      
10 C 0.283      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.557 -0.639 0.000 4.602
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.526 0.872 0.000
y 0.872 -26.753 0.000
z 0.000 0.000 -30.065
Traceless
 xyz
x -9.117 0.872 0.000
y 0.872 7.042 0.000
z 0.000 0.000 2.075
Polar
3z2-r24.149
x2-y2-10.772
xy0.872
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.950 -1.697 0.000
y -1.697 6.409 0.000
z 0.000 0.000 4.161


<r2> (average value of r2) Å2
<r2> 150.338
(<r2>)1/2 12.261