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All results from a given calculation for C4H6O (Cyclobutanone)

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-231.123779
Energy at 298.15K-231.130556
Nuclear repulsion energy168.133814
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 B1B95/6-31G*
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' 3188 3027 23.08      
2 A' 3158 2998 4.12      
3 A' 3129 2971 22.99      
4 A' 3104 2947 7.54      
5 A' 1932 1834 283.14      
6 A' 1525 1448 0.68      
7 A' 1473 1398 2.31      
8 A' 1263 1199 6.12      
9 A' 1237 1175 0.60      
10 A' 1110 1054 0.85      
11 A' 1001 951 1.69      
12 A' 871 827 0.69      
13 A' 747 709 4.18      
14 A' 682 648 3.46      
15 A' 402 382 0.67      
16 A' 74 70 3.81      
17 A" 3163 3003 4.06      
18 A" 3100 2942 10.35      
19 A" 1456 1382 17.20      
20 A" 1295 1229 10.17      
21 A" 1246 1182 2.28      
22 A" 1202 1141 2.20      
23 A" 1116 1060 87.11      
24 A" 964 915 0.56      
25 A" 958 909 0.03      
26 A" 641 608 0.00      
27 A" 466 442 3.71      

Unscaled Zero Point Vibrational Energy (zpe) 20251.1 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 19224.4 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 B1B95/6-31G*
ABC
0.36266 0.16184 0.12042

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.437 1.815 0.000
C2 -0.099 0.665 0.000
C3 0.155 -0.363 1.100
C4 0.155 -0.363 -1.100
C5 0.155 -1.451 0.000
H6 -0.760 -2.045 0.000
H7 1.010 -2.127 0.000
H8 1.130 -0.213 1.572
H9 1.130 -0.213 -1.572
H10 -0.602 -0.420 1.885
H11 -0.602 -0.420 -1.885

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.19862.51072.51073.31923.87324.19883.00683.00682.92792.9279
C21.19861.52671.52672.13132.78953.00382.17992.17992.23212.2321
C32.51071.52672.19921.54682.20762.24721.09412.84781.09203.0792
C42.51071.52672.19921.54682.20762.24722.84781.09413.07921.0920
C53.31922.13131.54681.54681.09051.08962.22582.22582.27782.2778
H63.87322.78952.20762.20761.09051.77143.06563.06562.49342.4934
H74.19883.00382.24722.24721.08961.77142.47912.47913.01053.0105
H83.00682.17991.09412.84782.22583.06562.47913.14331.77283.8717
H93.00682.17992.84781.09412.22583.06562.47913.14333.87171.7728
H102.92792.23211.09203.07922.27782.49343.01051.77283.87173.7691
H112.92792.23213.07921.09202.27782.49343.01053.87171.77283.7691

picture of Cyclobutanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 133.870 O1 C2 C4 133.870
C2 C3 C5 87.805 C2 C3 H8 111.494
C2 C3 H10 115.948 C2 C4 C5 87.805
C2 C4 H9 111.494 C2 C4 H11 115.948
C3 C2 C4 92.150 C3 C5 C4 90.615
C3 C5 H6 112.516 C3 C5 H7 115.855
C4 C5 H6 112.516 C4 C5 H7 115.855
C5 C3 H8 113.771 C5 C3 H10 118.329
C5 C4 H9 113.771 C5 C4 H11 118.329
H6 C5 H7 108.688 H8 C3 H10 108.373
H9 C4 H11 108.373
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.422      
2 C 0.422      
3 C -0.397      
4 C -0.397      
5 C -0.345      
6 H 0.179      
7 H 0.172      
8 H 0.197      
9 H 0.197      
10 H 0.196      
11 H 0.196      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.821 -2.707 0.000 2.829
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.224 1.681 0.000
y 1.681 -35.344 0.000
z 0.000 0.000 -28.222
Traceless
 xyz
x 3.559 1.681 0.000
y 1.681 -7.121 0.000
z 0.000 0.000 3.563
Polar
3z2-r27.126
x2-y27.120
xy1.681
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.109 -0.442 0.000
y -0.442 6.714 0.000
z 0.000 0.000 6.285


<r2> (average value of r2) Å2
<r2> 104.930
(<r2>)1/2 10.244