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

using model chemistry: CCD/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 CCD/6-31G*
 hartrees
Energy at 0K-209.497786
Energy at 298.15K-209.502200
HF Energy-208.806863
Nuclear repulsion energy137.896799
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 CCD/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' 3221 3048 3.87      
2 A' 3200 3028 8.45      
3 A' 3164 2995 11.10      
4 A' 3075 2910 13.13      
5 A' 2374 2247 2.94      
6 A' 1768 1674 4.21      
7 A' 1542 1460 11.82      
8 A' 1473 1394 2.36      
9 A' 1368 1294 0.21      
10 A' 1352 1280 0.33      
11 A' 1167 1104 0.14      
12 A' 1061 1004 4.77      
13 A' 938 888 5.32      
14 A' 560 530 0.08      
15 A' 398 377 1.29      
16 A' 178 169 4.69      
17 A" 3142 2974 12.60      
18 A" 1529 1447 8.18      
19 A" 1103 1044 0.40      
20 A" 998 944 40.71      
21 A" 805 762 1.17      
22 A" 475 450 5.21      
23 A" 190 180 1.34      
24 A" 174 165 1.05      

Unscaled Zero Point Vibrational Energy (zpe) 17627.6 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 16684.5 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 CCD/6-31G*
ABC
1.26519 0.07601 0.07268

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.649 0.460 0.000
H2 2.659 -1.084 0.883
H3 2.659 -1.084 -0.883
C4 2.264 -0.565 0.000
H5 0.280 -1.563 0.000
C6 0.765 -0.586 0.000
H7 0.440 1.511 0.000
C8 0.000 0.515 0.000
N9 -2.603 0.411 0.000
C10 -1.439 0.449 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.77881.77881.09533.11582.15552.44612.64985.25294.0877
H21.77881.76541.09762.58222.14803.52633.22575.54114.4628
H31.77881.76541.09762.58222.14803.52633.22575.54114.4628
C41.09531.09761.09762.22081.49902.76302.50814.96393.8384
H53.11582.58222.58222.22081.09083.07842.09723.49432.6461
C62.15552.14802.14801.49901.09082.12211.34083.51262.4343
H72.44613.52633.52632.76303.07842.12211.08883.23662.1582
C82.64983.22573.22572.50812.09721.34081.08882.60561.4400
N95.25295.54115.54114.96393.49433.51263.23662.60561.1656
C104.08774.46284.46283.83842.64612.43432.15821.44001.1656

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 108.417 H1 C4 H3 108.417
H1 C4 C6 111.424 H2 C4 H3 107.068
H2 C4 C6 110.686 H3 C4 C6 110.686
C4 C6 H5 117.206 C4 C6 C8 123.965
H5 C6 C8 118.829 C6 C8 H7 121.372
C6 C8 C10 122.144 H7 C8 C10 116.484
C8 C10 N9 179.255
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability