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All results from a given calculation for C4H6 (Bicyclo[1.1.0]butane)

using model chemistry: wB97X-D/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at wB97X-D/TZVP
 hartrees
Energy at 0K-155.947737
Energy at 298.15K-155.954102
HF Energy-155.947737
Nuclear repulsion energy116.741115
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 wB97X-D/TZVP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3282 3134 1.31      
2 A1 3198 3054 21.77      
3 A1 3088 2949 52.13      
4 A1 1546 1476 0.36      
5 A1 1303 1245 2.64      
6 A1 1122 1072 0.15      
7 A1 881 841 0.03      
8 A1 716 684 6.50      
9 A1 447 427 1.13      
10 A2 1196 1143 0.00      
11 A2 1088 1039 0.00      
12 A2 937 895 0.00      
13 A2 865 826 0.00      
14 B1 3269 3122 3.09      
15 B1 1181 1128 14.19      
16 B1 1137 1086 13.68      
17 B1 1019 974 4.49      
18 B1 759 725 77.26      
19 B2 3200 3056 11.71      
20 B2 3094 2955 41.66      
21 B2 1508 1441 0.04      
22 B2 1330 1270 0.15      
23 B2 1111 1061 1.07      
24 B2 965 921 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 19120.9 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 18260.5 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 wB97X-D/TZVP
ABC
0.58526 0.31236 0.28246

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.737 0.000 -0.323
C2 -0.737 0.000 -0.323
C3 0.000 1.131 0.315
C4 0.000 -1.131 0.315
H5 1.440 0.000 -1.139
H6 -1.440 0.000 -1.139
H7 0.000 2.077 -0.216
H8 0.000 -2.077 -0.216
H9 0.000 1.227 1.401
H10 0.000 -1.227 1.401

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.47371.49291.49291.07692.32472.20652.20652.24062.2406
C21.47371.49291.49292.32471.07692.20652.20652.24062.2406
C31.49291.49292.26122.33802.33801.08573.25151.08982.5954
C41.49291.49292.26122.33802.33803.25151.08572.59541.0898
H51.07692.32472.33802.33802.88022.69052.69053.16683.1668
H62.32471.07692.33802.33802.88022.69052.69053.16683.1668
H72.20652.20651.08573.25152.69052.69054.15421.82723.6786
H82.20652.20653.25151.08572.69052.69054.15423.67861.8272
H92.24062.24061.08982.59543.16683.16681.82723.67862.4538
H102.24062.24062.59541.08983.16683.16683.67861.82722.4538

picture of Bicyclo[1.1.0]butane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 60.424 C1 C2 C4 60.424
C1 C2 H6 130.768 C1 C3 C2 59.151
C1 C3 H7 116.793 C1 C3 H9 119.530
C1 C4 C2 59.151 C1 C4 H8 116.793
C1 C4 H10 119.530 C2 C1 C3 60.424
C2 C1 C4 60.424 C2 C1 H5 130.768
C2 C3 H7 116.793 C2 C3 H9 119.530
C2 C4 H8 116.793 C2 C4 H10 119.530
C3 C1 C4 98.456 C3 C1 H5 130.253
C3 C2 C4 98.456 C3 C2 H6 130.253
C4 C1 H5 130.253 C4 C2 H6 130.253
H7 C3 H9 114.259 H8 C4 H10 114.259
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.001      
2 C -0.001      
3 C -0.400      
4 C -0.400      
5 H 0.146      
6 H 0.146      
7 H 0.131      
8 H 0.131      
9 H 0.124      
10 H 0.124      


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 -0.720 0.720
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.739 0.000 0.000
y 0.000 -24.032 0.000
z 0.000 0.000 -23.941
Traceless
 xyz
x -2.752 0.000 0.000
y 0.000 1.308 0.000
z 0.000 0.000 1.445
Polar
3z2-r22.889
x2-y2-2.707
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.836 0.000 0.000
y 0.000 6.951 0.000
z 0.000 0.000 6.005


<r2> (average value of r2) Å2
<r2> 62.260
(<r2>)1/2 7.891