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

using model chemistry: HF/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-208.738349
Energy at 298.15K-208.743070
Nuclear repulsion energy138.359564
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/LANL2DZ
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' 3398 3058 10.19      
2 A' 3372 3035 15.13      
3 A' 3309 2977 26.09      
4 A' 3203 2883 32.60      
5 A' 2509 2258 65.41      
6 A' 1851 1666 21.44      
7 A' 1637 1473 22.61      
8 A' 1577 1419 5.18      
9 A' 1457 1312 4.24      
10 A' 1451 1306 0.15      
11 A' 1241 1117 0.82      
12 A' 1104 993 9.13      
13 A' 991 892 5.21      
14 A' 616 554 0.44      
15 A' 432 389 1.46      
16 A' 201 181 4.17      
17 A" 3276 2948 31.00      
18 A" 1630 1467 13.93      
19 A" 1213 1092 1.32      
20 A" 1107 996 62.38      
21 A" 936 842 2.52      
22 A" 554 498 3.72      
23 A" 196 176 1.02      
24 A" 192 173 0.86      

Unscaled Zero Point Vibrational Energy (zpe) 18726.0 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 16851.6 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 HF/LANL2DZ
ABC
1.30203 0.07593 0.07270

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

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 2.263 -0.590 0.000
H5 0.281 -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 0.464 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.75811.75811.08183.09242.15422.47132.66365.25544.1013
H21.75811.74781.08472.55592.13813.51763.21735.53014.4587
H31.75811.74781.08472.55592.13813.51763.21735.53014.4587
C41.08181.08471.08472.20561.50412.76702.51484.96573.8487
H53.09242.55592.55592.20561.07603.04912.08363.50422.6530
C62.15422.13812.13811.50411.07602.10621.33693.51002.4384
H72.47133.51763.51762.76703.04912.10621.07293.20252.1365
C82.66363.21733.21732.51482.08361.33691.07292.59401.4397
N95.25545.53015.53014.96573.50423.51003.20252.59401.1544
C104.10134.45874.45873.84872.65302.43842.13651.43971.1544

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 108.482 H1 C4 H3 108.482
H1 C4 C6 111.784 H2 C4 H3 107.344
H2 C4 C6 110.308 H3 C4 C6 110.308
C4 C6 H5 116.511 C4 C6 C8 124.449
H5 C6 C8 119.040 C6 C8 H7 121.471
C6 C8 C10 122.813 H7 C8 C10 115.716
C8 C10 N9 178.993
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.189      
2 H 0.200      
3 H 0.200      
4 C -0.584      
5 H 0.208      
6 C -0.030      
7 H 0.231      
8 C -0.225      
9 N -0.083      
10 C -0.107      


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 -40.595 0.925 0.000
y 0.925 -27.630 0.000
z 0.000 0.000 -31.829
Traceless
 xyz
x -10.866 0.925 0.000
y 0.925 8.582 0.000
z 0.000 0.000 2.284
Polar
3z2-r24.568
x2-y2-12.965
xy0.925
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.975 -1.894 0.000
y -1.894 6.203 0.000
z 0.000 0.000 3.673


<r2> (average value of r2) Å2
<r2> 153.044
(<r2>)1/2 12.371