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

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G4
 hartrees
Energy at 0K-210.031006
Energy at 298.15K-210.024566
HF Energy-210.168531
Nuclear repulsion energy141.725702
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 B3LYP/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 3188 3077 4.72      
2 A 3160 3050 8.14      
3 A 3131 3021 2.40      
4 A 3029 2923 9.12      
5 A 2335 2253 15.18      
6 A 1693 1634 16.25      
7 A 1480 1428 13.33      
8 A 1425 1375 3.96      
9 A 1397 1348 2.59      
10 A 1262 1218 0.30      
11 A 1122 1083 0.29      
12 A 967 934 13.71      
13 A 903 871 1.93      
14 A 670 647 2.01      
15 A 401 387 0.19      
16 A 160 155 4.95      
17 A 3078 2970 9.72      
18 A 1478 1427 6.54      
19 A 1069 1032 0.14      
20 A 993 958 0.78      
21 A 763 736 29.84      
22 A 542 523 1.23      
23 A 298 288 3.54      
24 A 161 156 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 17353.2 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 16745.8 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 B3LYP/6-31G(2df,p)
ABC
0.40600 0.11471 0.09094

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.222 0.251 0.000
N2 -2.226 -0.329 0.000
C3 0.000 0.984 0.000
H4 -0.100 2.064 0.000
C5 1.209 0.407 0.000
H6 2.074 1.067 0.000
C7 1.490 -1.059 0.000
H8 0.573 -1.652 0.000
H9 2.086 -1.334 0.879
H10 2.086 -1.334 -0.879

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 H10
C11.15891.42522.13262.43663.39603.01232.61613.77243.7724
N21.15892.58403.20123.51304.52083.78693.09554.51394.5139
C31.42522.58401.08521.33962.07572.52862.69723.23993.2399
H42.13263.20121.08522.11172.39163.50493.77664.13524.1352
C52.43663.51301.33962.11171.08791.49332.15532.13862.1386
H63.39604.52082.07572.39161.08792.20533.10602.55712.5571
C73.01233.78692.52863.50491.49332.20531.09201.09671.0967
H82.61613.09552.69723.77662.15533.10601.09201.77851.7785
H93.77244.51393.23994.13522.13862.55711.09671.77851.7571
H103.77244.51393.23994.13522.13862.55711.09671.77851.7571

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 115.344 C1 C3 C5 123.418
N2 C1 C3 178.452 C3 C5 H6 117.275
C3 C5 C7 126.578 H4 C3 C5 121.238
C5 C7 H8 111.923 C5 C7 H9 110.230
C5 C7 H10 110.230 H6 C5 C7 116.147
H8 C7 H9 108.759 H8 C7 H10 108.759
H9 C7 H10 106.786
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.267      
2 N -0.335      
3 C -0.183      
4 H 0.136      
5 C 0.009      
6 H 0.116      
7 C -0.456      
8 H 0.157      
9 H 0.144      
10 H 0.144      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.985 1.154 0.000 4.149
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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> 126.156
(<r2>)1/2 11.232