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All results from a given calculation for C5H7N (Cyclobutanecarbonitrile)

using model chemistry: PBEPBE/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 PBEPBE/3-21G
 hartrees
Energy at 0K-247.767948
Energy at 298.15K-247.775777
Nuclear repulsion energy208.541610
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 PBEPBE/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' 3113 3085 24.53      
2 A' 3088 3060 5.91      
3 A' 3040 3012 1.35      
4 A' 3030 3003 16.11      
5 A' 3028 3001 6.68      
6 A' 2249 2228 8.77      
7 A' 1499 1486 1.10      
8 A' 1482 1468 5.70      
9 A' 1323 1311 0.02      
10 A' 1251 1239 5.65      
11 A' 1210 1199 0.48      
12 A' 1100 1090 2.44      
13 A' 1046 1036 0.38      
14 A' 926 918 1.03      
15 A' 872 864 2.25      
16 A' 730 723 2.30      
17 A' 592 587 1.91      
18 A' 542 537 1.40      
19 A' 267 264 0.74      
20 A' 106 105 1.85      
21 A" 3103 3075 8.36      
22 A" 3035 3007 31.75      
23 A" 1473 1459 6.23      
24 A" 1258 1246 4.10      
25 A" 1239 1228 0.85      
26 A" 1212 1201 1.00      
27 A" 1177 1166 2.43      
28 A" 1016 1007 0.70      
29 A" 919 911 0.59      
30 A" 902 894 1.83      
31 A" 770 763 1.48      
32 A" 578 573 0.31      
33 A" 197 195 2.38      

Unscaled Zero Point Vibrational Energy (zpe) 23684.8 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 23469.2 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 PBEPBE/3-21G
ABC
0.31102 0.07869 0.06947

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.673 2.082 0.000
C2 0.745 1.356 0.000
C3 -0.370 0.434 0.000
C4 -0.854 -1.722 0.000
C5 -0.370 -0.708 1.106
C6 -0.370 -0.708 -1.106
H7 -1.333 0.973 0.000
H8 -1.952 -1.817 0.000
H9 -0.385 -2.716 0.000
H10 0.661 -0.923 1.426
H11 -1.023 -0.542 1.974
H12 0.661 -0.923 -1.426
H13 -1.023 -0.542 -1.974

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13
N11.17902.62554.56683.63123.63123.20475.32385.22063.47694.24913.47694.2491
C21.17901.44673.46792.59362.59362.11284.16374.22532.68963.25962.68963.2596
C32.62551.44672.20901.58981.58981.10372.75073.14942.22232.29722.22232.2972
C44.56683.46792.20901.57621.57622.73681.10201.09912.22892.30632.22892.3063
C53.63122.59361.58981.57622.21222.23092.22572.29201.10111.09912.74283.1534
C63.63122.59361.58981.57622.21222.23092.22572.29202.74283.15341.10111.0991
H73.20472.11281.10372.73682.23092.23092.85753.80853.09942.50793.09942.5079
H85.32384.16372.75071.10202.22572.22572.85751.80643.10822.52713.10822.5271
H95.22064.22533.14941.09912.29202.29203.80851.80642.51853.00522.51853.0052
H103.47692.68962.22232.22891.10112.74283.09943.10822.51851.81182.85273.8142
H114.24913.25962.29722.30631.09913.15342.50792.52713.00521.81183.81423.9490
H123.47692.68962.22232.22892.74281.10113.09943.10822.51852.85273.81421.8118
H134.24913.25962.29722.30633.15341.09912.50792.52713.00523.81423.94901.8118

picture of Cyclobutanecarbonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 178.426 C2 C3 C5 117.248
C2 C3 C6 117.248 C2 C3 H7 111.161
C3 C5 C4 88.486 C3 C5 H10 110.021
C3 C5 H11 116.168 C3 C6 C4 88.486
C3 C6 H12 110.021 C3 C6 H13 116.168
C4 C5 H10 111.482 C4 C5 H11 117.996
C4 C6 H12 111.482 C4 C6 H13 117.996
C5 C3 C6 88.173 C5 C3 H7 110.540
C5 C4 C6 89.136 C5 C4 H8 111.178
C5 C4 H9 116.776 C6 C3 H7 110.540
C6 C4 H8 111.178 C6 C4 H9 116.776
H8 C4 H9 110.305 H10 C5 H11 110.866
H12 C6 H13 110.866
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.489      
2 C 0.366      
3 C -0.327      
4 C -0.413      
5 C -0.367      
6 C -0.367      
7 H 0.262      
8 H 0.220      
9 H 0.213      
10 H 0.234      
11 H 0.217      
12 H 0.234      
13 H 0.217      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.749 -2.725 0.000 3.871
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.384 -6.119 0.000
y -6.119 -41.673 0.000
z 0.000 0.000 -35.248
Traceless
 xyz
x -0.923 -6.119 0.000
y -6.119 -4.357 0.000
z 0.000 0.000 5.280
Polar
3z2-r210.560
x2-y22.290
xy-6.119
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.658 1.793 0.000
y 1.793 8.174 0.000
z 0.000 0.000 6.452


<r2> (average value of r2) Å2
<r2> 157.358
(<r2>)1/2 12.544