return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H10 (Cyclopropane, 1,1-dimethyl-)

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-196.422626
Energy at 298.15K-196.433366
Nuclear repulsion energy184.921531
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 3158 3015 10.80      
2 A 3138 2996 39.31      
3 A 3050 2912 36.91      
4 A 1535 1466 0.26      
5 A 1510 1441 5.79      
6 A 1429 1365 0.02      
7 A 1373 1311 1.31      
8 A 1107 1057 0.61      
9 A 1045 998 6.91      
10 A 971 928 13.21      
11 A 707 675 1.43      
12 A 341 326 0.01      
13 A 3236 3090 0.00      
14 A 3121 2980 0.00      
15 A 1486 1419 0.00      
16 A 1187 1134 0.00      
17 A 1063 1015 0.00      
18 A 892 852 0.00      
19 A 328 313 0.00      
20 A 219 210 0.00      
21 A 3153 3011 22.70      
22 A 3123 2981 58.08      
23 A 1506 1438 5.20      
24 A 1470 1404 3.71      
25 A 1162 1109 6.58      
26 A 1071 1022 1.04      
27 A 882 842 4.71      
28 A 388 371 1.13      
29 A 245 234 0.02      
30 A 3249 3102 22.49      
31 A 3136 2994 16.61      
32 A 3046 2909 35.49      
33 A 1502 1434 4.19      
34 A 1419 1355 7.64      
35 A 1331 1271 0.81      
36 A 970 926 0.69      
37 A 959 916 0.39      
38 A 787 752 0.04      
39 A 349 333 0.94      

Unscaled Zero Point Vibrational Energy (zpe) 30321.8 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 28951.3 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 B1B95/6-31G**
ABC
0.20629 0.17452 0.12767

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.151
C2 0.752 0.000 -1.150
C3 -0.752 0.000 -1.150
C4 0.000 1.271 0.966
C5 0.000 -1.271 0.966
H6 1.261 0.911 -1.446
H7 1.261 -0.911 -1.446
H8 -1.261 -0.911 -1.446
H9 -1.261 0.911 -1.446
H10 -0.884 1.327 1.609
H11 -0.884 -1.327 1.609
H12 0.884 -1.327 1.609
H13 0.884 1.327 1.609
H14 0.000 2.154 0.322
H15 0.000 -2.154 0.322

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15
C11.50261.50261.51001.51002.22992.22992.22992.22992.16082.16082.16082.16082.16122.1612
C21.50261.50392.58032.58031.08481.08482.22942.22943.47133.47133.06453.06452.71552.7155
C31.50261.50392.58032.58032.22942.22941.08481.08483.06453.06453.47133.47132.71552.7155
C41.51002.58032.58032.54252.74603.48883.48882.74601.09462.81902.81901.09461.09303.4857
C51.51002.58032.58032.54253.48882.74602.74603.48882.81901.09461.09462.81903.48571.0930
H62.22991.08482.22942.74603.48881.82153.11132.52243.75664.35283.80633.10692.50303.7568
H72.22991.08482.22943.48882.74601.82152.52243.11134.35283.75663.10693.80633.75682.5030
H82.22992.22941.08483.48882.74603.11132.52241.82153.80633.10693.75664.35283.75682.5030
H92.22992.22941.08482.74603.48882.52243.11131.82153.10693.80634.35283.75662.50303.7568
H102.16083.47133.06451.09462.81903.75664.35283.80633.10692.65443.18921.76781.76713.8158
H112.16083.47133.06452.81901.09464.35283.75663.10693.80632.65441.76783.18923.81581.7671
H122.16083.06453.47132.81901.09463.80633.10693.75664.35283.18921.76782.65443.81581.7671
H132.16083.06453.47131.09462.81903.10693.80634.35283.75661.76783.18922.65441.76713.8158
H142.16122.71552.71551.09303.48572.50303.75683.75682.50301.76713.81583.81581.76714.3090
H152.16122.71552.71553.48571.09303.75682.50302.50303.75683.81581.76711.76713.81584.3090

picture of Cyclopropane, 1,1-dimethyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 59.972 C1 C2 H6 118.141
C1 C2 H7 118.141 C1 C3 C2 59.972
C1 C3 H8 118.141 C1 C3 H9 118.141
C1 C4 H10 111.110 C1 C4 H13 111.110
C1 C4 H14 111.247 C1 C5 H11 111.110
C1 C5 H12 111.110 C1 C5 H15 111.247
C2 C1 C3 60.056 C2 C1 C4 117.854
C2 C1 C5 117.854 C2 C3 H8 117.998
C2 C3 H9 117.998 C3 C1 C4 117.854
C3 C1 C5 117.854 C3 C2 H6 117.998
C3 C2 H7 117.998 C4 C1 C5 114.680
H6 C2 H7 114.188 H8 C3 H9 114.188
H10 C4 H13 107.702 H10 C4 H14 107.752
H11 C5 H12 107.702 H11 C5 H15 107.752
H12 C5 H15 107.752 H13 C4 H14 107.752
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 C 0.017      
2 C -0.253      
3 C -0.253      
4 C -0.347      
5 C -0.347      
6 H 0.122      
7 H 0.122      
8 H 0.122      
9 H 0.122      
10 H 0.119      
11 H 0.119      
12 H 0.119      
13 H 0.119      
14 H 0.110      
15 H 0.110      


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 0.113 0.113
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.995 0.000 0.000
y 0.000 -31.706 0.000
z 0.000 0.000 -33.475
Traceless
 xyz
x -0.404 0.000 0.000
y 0.000 1.529 0.000
z 0.000 0.000 -1.125
Polar
3z2-r2-2.249
x2-y2-1.289
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.268 0.000 0.000
y 0.000 7.670 0.000
z 0.000 0.000 8.017


<r2> (average value of r2) Å2
<r2> 121.887
(<r2>)1/2 11.040