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All results from a given calculation for C5H8O (Cyclopentanone)

using model chemistry: B3LYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYP/6-311G*
 hartrees
Energy at 0K-270.636683
Energy at 298.15K-270.646295
HF Energy-270.636683
Nuclear repulsion energy235.005984
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/6-311G*
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 3101 2996 8.59      
2 A 3090 2985 28.54      
3 A 3034 2931 27.93      
4 A 3026 2924 3.05      
5 A 1828 1766 241.28      
6 A 1526 1474 2.20      
7 A 1468 1418 0.00      
8 A 1351 1305 0.14      
9 A 1316 1272 1.94      
10 A 1230 1188 0.03      
11 A 1182 1143 0.45      
12 A 1037 1002 0.77      
13 A 974 941 0.24      
14 A 898 867 0.44      
15 A 810 783 1.20      
16 A 711 687 1.26      
17 A 569 550 5.09      
18 A 230 223 0.11      
19 B 3102 2998 41.28      
20 B 3093 2989 37.00      
21 B 3040 2938 47.87      
22 B 3026 2924 10.15      
23 B 1512 1461 5.86      
24 B 1467 1418 21.18      
25 B 1351 1306 1.98      
26 B 1308 1264 5.17      
27 B 1264 1221 1.82      
28 B 1180 1140 1.20      
29 B 1147 1108 80.14      
30 B 973 941 12.87      
31 B 933 901 0.95      
32 B 844 816 11.32      
33 B 589 569 2.73      
34 B 472 456 3.97      
35 B 453 438 4.18      
36 B 103 99 4.91      

Unscaled Zero Point Vibrational Energy (zpe) 26618.4 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 25721.4 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/6-311G*
ABC
0.22042 0.11127 0.07978

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.134
C2 0.000 0.000 0.929
C3 0.000 1.242 0.031
C4 0.000 -1.242 0.031
C5 0.295 0.715 -1.381
C6 -0.295 -0.715 -1.381
H7 -1.002 1.685 0.088
H8 1.002 -1.685 0.088
H9 0.698 1.992 0.407
H10 -0.698 -1.992 0.407
H11 -0.122 1.341 -2.172
H12 0.122 -1.341 -2.172
H13 1.377 0.668 -1.545
H14 -1.377 -0.668 -1.545

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.20432.44242.44243.59883.59882.83362.83362.72712.72714.51124.51123.98403.9840
C21.20431.53311.53312.43632.43632.13372.13372.17472.17473.38103.38102.90912.9091
C32.44241.53312.48411.53562.43071.09763.09481.09183.33042.20803.39712.16962.8331
C42.44241.53312.48412.43071.53563.09481.09763.33041.09183.39712.20802.83312.1696
C53.59882.43631.53562.43071.54602.18732.90162.23473.39291.09192.20961.09552.1757
C63.59882.43632.43071.53561.54602.90162.18733.39292.23472.20961.09192.17571.0955
H72.83362.13371.09763.09482.18732.90163.92191.75703.70422.44953.94143.05982.8888
H82.83362.13373.09481.09762.90162.18733.92193.70421.75703.94142.44952.88883.0598
H92.72712.17471.09183.33042.23473.39291.75703.70424.22232.78364.25422.45473.8979
H102.72712.17473.33041.09183.39292.23473.70421.75704.22234.25422.78363.89792.4547
H114.51123.38102.20803.39711.09192.20962.44953.94142.78364.25422.69411.75932.4507
H124.51123.38103.39712.20802.20961.09193.94142.44954.25422.78362.69412.45071.7593
H133.98402.90912.16962.83311.09552.17573.05982.88882.45473.89791.75932.45073.0611
H143.98402.90912.83312.16962.17571.09552.88883.05983.89792.45472.45071.75933.0611

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 125.887 O1 C2 C4 125.887
C2 C3 C5 105.105 C2 C3 H7 107.246
C2 C3 H9 110.769 C2 C4 C6 105.105
C2 C4 H8 107.246 C2 C4 H10 110.769
C3 C2 C4 108.225 C3 C5 C6 104.141
C3 C5 H11 113.270 C3 C5 H13 109.964
C4 C6 C5 104.141 C4 C6 H12 113.270
C4 C6 H14 109.964 C5 C3 H7 111.241
C5 C3 H9 115.505 C5 C6 H12 112.644
C5 C6 H14 109.730 C6 C4 H8 111.241
C6 C4 H10 115.505 C6 C5 H11 112.644
C6 C5 H13 109.730 H7 C3 H9 106.741
H8 C4 H10 106.741 H11 C5 H13 107.086
H12 C6 H14 107.086
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.294      
2 C 0.317      
3 C -0.488      
4 C -0.488      
5 C -0.422      
6 C -0.422      
7 H 0.233      
8 H 0.233      
9 H 0.237      
10 H 0.237      
11 H 0.217      
12 H 0.217      
13 H 0.211      
14 H 0.211      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.917 2.917
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.376 -0.231 0.000
y -0.231 -35.532 0.000
z 0.000 0.000 -44.749
Traceless
 xyz
x 4.764 -0.231 0.000
y -0.231 4.530 0.000
z 0.000 0.000 -9.295
Polar
3z2-r2-18.589
x2-y20.156
xy-0.231
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.758 0.065 0.000
y 0.065 8.446 0.000
z 0.000 0.000 8.943


<r2> (average value of r2) Å2
<r2> 153.735
(<r2>)1/2 12.399