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

using model chemistry: HF/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/SDD
 hartrees
Energy at 0K-208.738885
Energy at 298.15K-208.743607
Nuclear repulsion energy138.376932
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/SDD
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' 3396 3058 9.95      
2 A' 3370 3035 14.75      
3 A' 3307 2977 25.50      
4 A' 3202 2883 31.92      
5 A' 2508 2258 65.28      
6 A' 1850 1666 21.64      
7 A' 1637 1474 22.78      
8 A' 1576 1419 5.33      
9 A' 1457 1312 4.33      
10 A' 1451 1306 0.13      
11 A' 1241 1118 0.83      
12 A' 1104 994 9.13      
13 A' 991 893 5.23      
14 A' 616 555 0.43      
15 A' 432 389 1.45      
16 A' 201 181 4.16      
17 A" 3274 2948 29.92      
18 A" 1631 1468 14.11      
19 A" 1213 1092 1.32      
20 A" 1107 996 62.31      
21 A" 936 842 2.49      
22 A" 554 499 3.70      
23 A" 196 177 1.00      
24 A" 192 173 0.89      

Unscaled Zero Point Vibrational Energy (zpe) 18720.8 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 16856.2 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/SDD
ABC
1.30230 0.07595 0.07272

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.662 0.416 0.000
H2 2.640 -1.110 0.874
H3 2.640 -1.110 -0.874
C4 2.262 -0.590 0.000
H5 0.280 -1.557 0.000
C6 0.759 -0.593 0.000
H7 0.436 1.488 0.000
C8 0.000 0.508 0.000
N9 -2.593 0.448 0.000
C10 -1.439 0.463 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.75811.75811.08183.09232.15412.47142.66365.25514.1011
H21.75811.74781.08472.55562.13793.51753.21705.52944.4581
H31.75811.74781.08472.55562.13793.51753.21705.52944.4581
C41.08181.08471.08472.20541.50392.76692.51454.96513.8482
H53.09232.55562.55562.20541.07603.04902.08343.50362.6526
C62.15412.13792.13791.50391.07602.10601.33663.50942.4380
H72.47143.51753.51752.76693.04902.10601.07303.20212.1363
C82.66363.21703.21702.51452.08341.33661.07302.59361.4395
N95.25515.52945.52944.96513.50363.50943.20212.59361.1542
C104.10114.45814.45813.84822.65262.43802.13631.43951.1542

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 108.479 H1 C4 H3 108.479
H1 C4 C6 111.794 H2 C4 H3 107.343
H2 C4 C6 110.307 H3 C4 C6 110.307
C4 C6 H5 116.500 C4 C6 C8 124.460
H5 C6 C8 119.040 C6 C8 H7 121.474
C6 C8 C10 122.813 H7 C8 C10 115.713
C8 C10 N9 178.992
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.193      
2 H 0.205      
3 H 0.205      
4 C -0.605      
5 H 0.209      
6 C -0.022      
7 H 0.232      
8 C -0.228      
9 N -0.085      
10 C -0.104      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  5.017 -0.774 0.000 5.076
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.570 0.923 0.000
y 0.923 -27.617 0.000
z 0.000 0.000 -31.828
Traceless
 xyz
x -10.848 0.923 0.000
y 0.923 8.582 0.000
z 0.000 0.000 2.266
Polar
3z2-r24.531
x2-y2-12.953
xy0.923
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.971 -1.894 0.000
y -1.894 6.203 0.000
z 0.000 0.000 3.692


<r2> (average value of r2) Å2
<r2> 153.001
(<r2>)1/2 12.369