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

using model chemistry: BLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-31G
 hartrees
Energy at 0K-210.014920
Energy at 298.15K-210.019269
Nuclear repulsion energy136.633286
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 BLYP/6-31G
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' 3099 3075 22.92      
2 A' 3089 3065 2.00      
3 A' 3052 3028 13.91      
4 A' 2957 2935 18.93      
5 A' 2187 2171 17.83      
6 A' 1647 1634 17.73      
7 A' 1492 1481 17.16      
8 A' 1422 1411 3.53      
9 A' 1329 1319 0.66      
10 A' 1319 1309 0.51      
11 A' 1124 1115 0.56      
12 A' 1024 1017 7.33      
13 A' 906 899 7.90      
14 A' 542 538 0.13      
15 A' 386 384 1.06      
16 A' 172 171 3.04      
17 A" 3004 2982 18.52      
18 A" 1484 1472 10.15      
19 A" 1068 1060 0.34      
20 A" 974 966 39.90      
21 A" 810 804 0.33      
22 A" 473 470 3.07      
23 A" 192 190 1.95      
24 A" 167 166 0.58      

Unscaled Zero Point Vibrational Energy (zpe) 16958.7 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 16829.8 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 BLYP/6-31G
ABC
1.27602 0.07432 0.07116

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.687 0.389 0.000
H2 2.660 -1.166 0.886
H3 2.660 -1.166 -0.886
C4 2.269 -0.631 0.000
H5 0.263 -1.600 0.000
C6 0.761 -0.623 0.000
H7 0.476 1.491 0.000
C8 0.000 0.504 0.000
N9 -2.620 0.510 0.000
C10 -1.431 0.497 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.78941.78941.10173.13502.17462.46962.68905.30814.1191
H21.78941.77141.10612.59222.16433.55113.26315.61004.5041
H31.78941.77141.10612.59222.16433.55113.26315.61004.5041
C41.10171.10611.10612.22791.50772.77772.53705.02053.8683
H53.13502.59222.59222.22791.09703.09802.11993.57222.6954
C62.17462.16432.16431.50771.09702.13261.35963.56612.4618
H72.46963.55113.55112.77773.09802.13261.09613.24852.1511
C82.68903.26313.26312.53702.11991.35961.09612.62021.4312
N95.30815.61005.61005.02053.57223.56613.24852.62021.1891
C104.11914.50414.50413.86832.69542.46182.15111.43121.1891

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 108.281 H1 C4 H3 108.281
H1 C4 C6 111.950 H2 C4 H3 106.400
H2 C4 C6 110.860 H3 C4 C6 110.860
C4 C6 H5 116.720 C4 C6 C8 124.373
H5 C6 C8 118.908 C6 C8 H7 120.176
C6 C8 C10 123.781 H7 C8 C10 116.044
C8 C10 N9 179.118
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.141      
2 H 0.152      
3 H 0.152      
4 C -0.426      
5 H 0.131      
6 C -0.015      
7 H 0.149      
8 C -0.069      
9 N -0.248      
10 C 0.033      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.529 -0.720 0.000 4.586
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.361 1.022 0.000
y 1.022 -27.316 0.000
z 0.000 0.000 -30.515
Traceless
 xyz
x -9.445 1.022 0.000
y 1.022 7.122 0.000
z 0.000 0.000 2.323
Polar
3z2-r24.646
x2-y2-11.045
xy1.022
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 155.165
(<r2>)1/2 12.457