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All results from a given calculation for C5H8 (Cyclobutane, methylene-)

using model chemistry: mPW1PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/cc-pVTZ
 hartrees
Energy at 0K-195.314594
Energy at 298.15K-195.323083
Nuclear repulsion energy168.364400
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 mPW1PW91/cc-pVTZ
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' 3152 3024 6.19      
2 A' 3146 3018 37.92      
3 A' 3113 2986 12.38      
4 A' 3089 2963 39.84      
5 A' 3063 2938 8.89      
6 A' 1768 1696 30.24      
7 A' 1500 1438 0.13      
8 A' 1471 1411 2.20      
9 A' 1440 1381 1.46      
10 A' 1263 1211 0.00      
11 A' 1227 1177 0.28      
12 A' 1096 1052 0.46      
13 A' 989 949 0.63      
14 A' 916 878 43.95      
15 A' 897 861 0.55      
16 A' 752 721 1.98      
17 A' 668 640 1.99      
18 A' 385 369 6.89      
19 A' 98 94 0.06      
20 A" 3236 3104 10.06      
21 A" 3117 2990 16.72      
22 A" 3060 2935 40.67      
23 A" 1456 1397 6.09      
24 A" 1291 1239 0.09      
25 A" 1245 1194 0.20      
26 A" 1227 1177 0.91      
27 A" 1198 1149 1.95      
28 A" 1045 1002 0.13      
29 A" 945 906 0.94      
30 A" 917 880 1.37      
31 A" 812 778 0.07      
32 A" 640 614 0.07      
33 A" 358 343 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 25289.3 cm-1
Scaled (by 0.9592) Zero Point Vibrational Energy (zpe) 24257.5 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 mPW1PW91/cc-pVTZ
ABC
0.35140 0.15528 0.11677

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.175 -0.420 1.085
C2 0.175 -0.420 -1.085
C3 0.000 0.618 0.000
C4 -0.020 -1.507 0.000
C5 -0.332 1.896 0.000
H6 -0.530 -0.397 1.916
H7 -0.530 -0.397 -1.916
H8 1.188 -0.423 1.493
H9 1.188 -0.423 -1.493
H10 -0.475 2.441 0.924
H11 -0.475 2.441 -0.924
H12 0.684 -2.336 0.000
H13 -1.033 -1.906 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C12.17101.51241.54872.60791.08933.08291.09212.77032.93893.55682.26052.2011
C22.17101.51241.54872.60793.08291.08932.77031.09213.55682.93892.26052.2011
C31.51241.51242.12581.32042.23222.23222.17342.17342.09862.09863.03292.7274
C41.54871.54872.12583.41802.27202.27202.20572.20574.08104.08101.08791.0884
C52.60792.60791.32043.41802.99512.99513.14913.14911.08271.08274.35303.8663
H61.08933.08292.23222.27202.99513.83141.76963.81723.00744.01602.98402.4897
H73.08291.08932.23222.27202.99513.83143.81721.76964.01603.00742.98402.4897
H81.09212.77032.17342.20573.14911.76963.81722.98573.36054.10042.47883.0597
H92.77031.09212.17342.20573.14913.81721.76962.98574.10043.36052.47883.0597
H102.93893.55682.09864.08101.08273.00744.01603.36054.10041.84895.00274.4794
H113.55682.93892.09864.08101.08274.01603.00744.10043.36051.84895.00274.4794
H122.26052.26053.03291.08794.35302.98402.98402.47882.47885.00275.00271.7705
H132.20112.20112.72741.08843.86632.48972.48973.05973.05974.47944.47941.7705

picture of Cyclobutane, methylene- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C2 91.737 C1 C3 C5 133.920
C1 C4 C2 88.999 C1 C4 H12 116.964
C1 C4 H13 111.976 C2 C3 C5 133.920
C2 C4 H12 116.964 C2 C4 H13 111.976
C3 C1 C4 87.962 C3 C1 H6 117.251
C3 C1 H8 112.123 C3 C2 C4 87.962
C3 C2 H7 117.251 C3 C2 H9 112.123
C3 C5 H10 121.371 C3 C5 H11 121.371
C4 C1 H6 117.861 C4 C1 H8 112.126
C4 C2 H7 117.861 C4 C2 H9 112.126
H6 C1 H8 108.430 H7 C2 H9 108.430
H10 C5 H11 117.259 H12 C4 H13 108.883
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.139      
2 C -0.139      
3 C 0.012      
4 C -0.135      
5 C -0.261      
6 H 0.077      
7 H 0.077      
8 H 0.080      
9 H 0.080      
10 H 0.097      
11 H 0.097      
12 H 0.075      
13 H 0.078      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.103 -0.569 0.000 0.578
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.100 -0.577 0.000
y -0.577 -31.912 0.000
z 0.000 0.000 -30.644
Traceless
 xyz
x -0.821 -0.577 0.000
y -0.577 -0.540 0.000
z 0.000 0.000 1.362
Polar
3z2-r22.723
x2-y2-0.187
xy-0.577
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.024 -1.547 0.000
y -1.547 10.137 0.000
z 0.000 0.000 8.172


<r2> (average value of r2) Å2
<r2> 115.062
(<r2>)1/2 10.727