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

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-208.896383
Energy at 298.15K-208.900994
Nuclear repulsion energy138.527176
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 B1B95/3-21G
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' 3202 3063 8.51      
2 A' 3191 3053 1.24      
3 A' 3152 3016 7.63      
4 A' 3059 2927 7.26      
5 A' 2350 2248 12.71      
6 A' 1718 1644 16.11      
7 A' 1543 1476 20.84      
8 A' 1460 1397 9.96      
9 A' 1367 1308 0.83      
10 A' 1354 1295 0.02      
11 A' 1152 1102 1.78      
12 A' 1049 1004 6.61      
13 A' 932 892 9.11      
14 A' 600 574 0.04      
15 A' 417 399 1.24      
16 A' 194 185 2.47      
17 A" 3114 2979 7.69      
18 A" 1538 1471 13.25      
19 A" 1107 1059 1.40      
20 A" 1011 967 59.57      
21 A" 861 823 0.95      
22 A" 566 542 3.04      
23 A" 198 189 1.71      
24 A" 183 175 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 17657.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 16893.2 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 B1B95/3-21G
ABC
1.28768 0.07669 0.07337

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.637 0.420 0.000
H2 2.630 -1.123 0.882
H3 2.630 -1.123 -0.882
C4 2.245 -0.599 0.000
H5 0.259 -1.578 0.000
C6 0.748 -0.608 0.000
H7 0.467 1.482 0.000
C8 0.000 0.501 0.000
N9 -2.582 0.468 0.000
C10 -1.417 0.480 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.77791.77791.09243.10572.15032.41552.63795.21914.0543
H21.77791.76381.09602.57052.14183.49933.21505.52104.4421
H31.77791.76381.09602.57052.14183.49933.21505.52104.4421
C41.09241.09601.09602.21361.49672.73702.50004.94353.8177
H53.10572.57052.57052.21361.08633.06632.09513.50102.6542
C62.15032.14182.14181.49671.08632.10801.33763.49962.4231
H72.41553.49933.49932.73703.06632.10801.08573.21312.1336
C82.63793.21503.21502.50002.09511.33761.08572.58241.4174
N95.21915.52105.52104.94353.50103.49963.21312.58241.1651
C104.05434.44214.44213.81772.65422.42312.13361.41741.1651

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 108.665 H1 C4 H3 108.665
H1 C4 C6 111.344 H2 C4 H3 107.161
H2 C4 C6 110.443 H3 C4 C6 110.443
C4 C6 H5 117.065 C4 C6 C8 123.684
H5 C6 C8 119.251 C6 C8 H7 120.537
C6 C8 C10 123.143 H7 C8 C10 116.320
C8 C10 N9 179.748
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.226      
2 H 0.239      
3 H 0.239      
4 C -0.654      
5 H 0.238      
6 C -0.148      
7 H 0.255      
8 C -0.200      
9 N -0.486      
10 C 0.291      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.306 -0.654 0.000 4.355
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.206 0.840 0.000
y 0.840 -26.873 0.000
z 0.000 0.000 -30.840
Traceless
 xyz
x -8.350 0.840 0.000
y 0.840 7.150 0.000
z 0.000 0.000 1.200
Polar
3z2-r22.400
x2-y2-10.334
xy0.840
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.936 -1.685 0.000
y -1.685 5.743 0.000
z 0.000 0.000 3.112


<r2> (average value of r2) Å2
<r2> 150.886
(<r2>)1/2 12.284