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All results from a given calculation for C4H5N ((Z)-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-210.067887
Energy at 298.15K-210.072483
Nuclear repulsion energy142.303302
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 3213 3077 3.42      
2 A 3183 3048 7.83      
3 A 3158 3025 1.64      
4 A 3051 2922 7.07      
5 A 2356 2257 15.34      
6 A 1713 1641 17.13      
7 A 1476 1413 14.17      
8 A 1419 1359 5.00      
9 A 1385 1326 3.27      
10 A 1253 1200 0.30      
11 A 1121 1074 0.14      
12 A 970 929 14.38      
13 A 918 879 2.15      
14 A 668 640 2.29      
15 A 403 386 0.18      
16 A 160 153 4.73      
17 A 3115 2983 7.06      
18 A 1470 1408 7.21      
19 A 1061 1016 0.12      
20 A 990 948 0.75      
21 A 759 727 31.49      
22 A 541 518 1.61      
23 A 296 283 3.52      
24 A 166 159 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 17421.8 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 16684.9 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
0.40456 0.11677 0.09215

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)
C1 -1.212 0.244 0.000
N2 -2.207 -0.348 0.000
C3 0.000 0.988 0.000
H4 -0.106 2.067 0.000
C5 1.206 0.413 0.000
H6 2.071 1.070 0.000
C7 1.473 -1.048 0.000
H8 0.550 -1.628 0.000
H9 2.065 -1.328 0.877
H10 2.065 -1.328 -0.877

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 H10
C11.15731.42252.13222.42433.38592.98042.57123.73923.7392
N21.15732.57973.20083.49644.50673.74573.03914.46944.4694
C31.42252.57971.08361.33622.07282.51362.67373.22463.2246
H42.13223.20081.08362.11082.39413.49243.75264.12364.1236
C52.42433.49641.33622.11081.08651.48552.14402.13012.1301
H63.38594.50672.07282.39411.08652.20143.09782.55342.5534
C72.98043.74572.51363.49241.48552.20141.09031.09431.0943
H82.57123.03912.67373.75262.14403.09781.09031.77631.7763
H93.73924.46943.22464.12362.13012.55341.09431.77631.7539
H103.73924.46943.22464.12362.13012.55341.09431.77631.7539

picture of (Z)-2-Butenenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 115.940 C1 C3 C5 122.956
N2 C1 C3 179.249 C3 C5 H6 117.271
C3 C5 C7 125.862 H4 C3 C5 121.104
C5 C7 H8 111.771 C5 C7 H9 110.393
C5 C7 H10 110.393 H6 C5 C7 116.867
H8 C7 H9 108.800 H8 C7 H10 108.800
H9 C7 H10 106.524
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 C 0.281      
2 N -0.344      
3 C -0.204      
4 H 0.150      
5 C -0.019      
6 H 0.130      
7 C -0.470      
8 H 0.167      
9 H 0.155      
10 H 0.155      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.955 1.177 0.000 4.126
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.449 -2.479 0.000
y -2.479 -26.744 0.000
z 0.000 0.000 -30.084
Traceless
 xyz
x -6.035 -2.479 0.000
y -2.479 5.522 0.000
z 0.000 0.000 0.513
Polar
3z2-r21.026
x2-y2-7.704
xy-2.479
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.084 -0.100 0.000
y -0.100 6.600 0.000
z 0.000 0.000 4.142


<r2> (average value of r2) Å2
<r2> 124.600
(<r2>)1/2 11.162