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All results from a given calculation for C4H6O (Cyclobutanone)

using model chemistry: B1B95/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/CEP-31G*
 hartrees
Energy at 0K-42.100932
Energy at 298.15K-42.107651
Nuclear repulsion energy89.695671
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/CEP-31G*
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' 3190 3053 45.08      
2 A' 3160 3025 3.71      
3 A' 3123 2989 25.79      
4 A' 3102 2969 10.03      
5 A' 1902 1821 338.52      
6 A' 1492 1428 0.91      
7 A' 1439 1377 3.28      
8 A' 1241 1188 9.27      
9 A' 1207 1156 1.36      
10 A' 1041 996 1.37      
11 A' 993 951 2.54      
12 A' 861 825 0.23      
13 A' 729 697 6.87      
14 A' 668 640 6.91      
15 A' 385 369 0.14      
16 A' 93 89 3.96      
17 A" 3169 3033 4.96      
18 A" 3098 2965 14.49      
19 A" 1425 1364 24.15      
20 A" 1277 1222 8.09      
21 A" 1219 1167 3.77      
22 A" 1179 1128 4.02      
23 A" 1110 1063 80.79      
24 A" 956 915 0.00      
25 A" 940 900 0.37      
26 A" 611 585 0.16      
27 A" 458 438 3.40      

Unscaled Zero Point Vibrational Energy (zpe) 20032.7 cm-1
Scaled (by 0.9572) Zero Point Vibrational Energy (zpe) 19175.3 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/CEP-31G*
ABC
0.35359 0.15841 0.11813

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.527 1.812 0.000
C2 -0.117 0.669 0.000
C3 0.187 -0.360 1.112
C4 0.187 -0.360 -1.112
C5 0.187 -1.461 0.000
H6 -0.741 -2.050 0.000
H7 1.046 -2.144 0.000
H8 1.181 -0.186 1.553
H9 1.181 -0.186 -1.553
H10 -0.556 -0.430 1.921
H11 -0.556 -0.430 -1.921

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.21472.54232.54233.34983.86804.25743.05283.05282.95222.9522
C21.21471.54501.54502.15112.78953.04372.19692.19692.25572.2557
C32.54231.54502.22441.56502.22582.27151.10202.85001.09963.1232
C42.54231.54502.22441.56502.22582.27152.85001.10203.12321.0996
C53.34982.15111.56501.56501.09891.09812.24222.24222.30282.3028
H63.86802.78952.22582.22581.09891.78973.09573.09572.51972.5197
H74.25743.04372.27152.27151.09811.78972.50312.50313.03213.0321
H83.05282.19691.10202.85002.24223.09572.50313.10571.79223.8913
H93.05282.19692.85001.10202.24223.09572.50313.10573.89131.7922
H102.95222.25571.09963.12322.30282.51973.03211.79223.89133.8414
H112.95222.25573.12321.09962.30282.51973.03213.89131.79223.8414

picture of Cyclobutanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 133.863 O1 C2 C4 133.863
C2 C3 C5 87.521 C2 C3 H8 111.084
C2 C3 H10 116.048 C2 C4 C5 87.521
C2 C4 H9 111.084 C2 C4 H11 116.048
C3 C2 C4 92.091 C3 C5 C4 90.582
C3 C5 H6 112.158 C3 C5 H7 115.960
C4 C5 H6 112.158 C4 C5 H7 115.960
C5 C3 H8 113.292 C5 C3 H10 118.543
C5 C4 H9 113.292 C5 C4 H11 118.543
H6 C5 H7 109.101 H8 C3 H10 108.987
H9 C4 H11 108.987
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.022      
2 C -0.213      
3 C -0.241      
4 C -0.241      
5 C -0.320      
6 H 0.148      
7 H 0.186      
8 H 0.159      
9 H 0.159      
10 H 0.193      
11 H 0.193      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.036 -2.858 0.000 3.040
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.100 2.128 0.000
y 2.128 -35.518 0.000
z 0.000 0.000 -28.252
Traceless
 xyz
x 3.785 2.128 0.000
y 2.128 -7.342 0.000
z 0.000 0.000 3.557
Polar
3z2-r27.114
x2-y27.418
xy2.128
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.926 -0.612 0.000
y -0.612 7.092 0.000
z 0.000 0.000 6.554


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000