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: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-196.427672
Energy at 298.15K-196.438400
Nuclear repulsion energy184.833445
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 B1B95/6-31+G**
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 3153 3016 12.21      
2 A 3132 2996 40.38      
3 A 3044 2912 46.23      
4 A 1527 1460 0.26      
5 A 1502 1437 8.35      
6 A 1421 1359 0.14      
7 A 1367 1308 1.17      
8 A 1097 1050 0.08      
9 A 1037 992 11.26      
10 A 966 924 15.54      
11 A 704 674 1.92      
12 A 343 328 0.07      
13 A 3230 3090 0.00      
14 A 3113 2978 0.00      
15 A 1477 1413 0.00      
16 A 1180 1129 0.00      
17 A 1058 1012 0.00      
18 A 890 851 0.00      
19 A 329 315 0.00      
20 A 215 206 0.00      
21 A 3148 3012 27.48      
22 A 3114 2979 63.06      
23 A 1497 1432 7.88      
24 A 1463 1399 5.95      
25 A 1154 1104 4.33      
26 A 1065 1019 1.25      
27 A 876 838 6.12      
28 A 390 373 1.01      
29 A 242 232 0.01      
30 A 3243 3102 24.00      
31 A 3130 2994 18.97      
32 A 3040 2908 43.97      
33 A 1491 1427 5.56      
34 A 1411 1350 10.55      
35 A 1325 1267 0.29      
36 A 966 924 0.56      
37 A 955 914 0.12      
38 A 787 753 0.00      
39 A 350 334 1.14      

Unscaled Zero Point Vibrational Energy (zpe) 30216.3 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 28904.9 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 B1B95/6-31+G**
ABC
0.20614 0.17430 0.12760

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.151
C2 0.753 0.000 -1.150
C3 -0.753 0.000 -1.150
C4 0.000 1.271 0.967
C5 0.000 -1.271 0.967
H6 1.262 0.911 -1.448
H7 1.262 -0.911 -1.448
H8 -1.262 -0.911 -1.448
H9 -1.262 0.911 -1.448
H10 -0.885 1.325 1.610
H11 -0.885 -1.325 1.610
H12 0.885 -1.325 1.610
H13 0.885 1.325 1.610
H14 0.000 2.156 0.324
H15 0.000 -2.156 0.324

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15
C11.50311.50311.51071.51072.23112.23112.23112.23112.16042.16042.16042.16042.16262.1626
C21.50311.50652.58152.58151.08531.08532.23132.23133.47203.47203.06413.06412.71782.7178
C31.50311.50652.58152.58152.23132.23131.08531.08533.06413.06413.47203.47202.71782.7178
C41.51072.58152.58152.54272.74803.49093.49092.74801.09512.81752.81751.09511.09343.4868
C51.51072.58152.58152.54273.49092.74802.74803.49092.81751.09511.09512.81753.48681.0934
H62.23111.08532.23132.74803.49091.82293.11272.52313.75854.35403.80683.10822.50563.7600
H72.23111.08532.23133.49092.74801.82292.52313.11274.35403.75853.10823.80683.76002.5056
H82.23112.23131.08533.49092.74803.11272.52311.82293.80683.10823.75854.35403.76002.5056
H92.23112.23131.08532.74803.49092.52313.11271.82293.10823.80684.35403.75852.50563.7600
H102.16043.47203.06411.09512.81753.75854.35403.80683.10822.65023.18691.76991.76813.8148
H112.16043.47203.06412.81751.09514.35403.75853.10823.80682.65021.76993.18693.81481.7681
H122.16043.06413.47202.81751.09513.80683.10823.75854.35403.18691.76992.65023.81481.7681
H132.16043.06413.47201.09512.81753.10823.80684.35403.75851.76993.18692.65021.76813.8148
H142.16262.71782.71781.09343.48682.50563.76003.76002.50561.76813.81483.81481.76814.3114
H152.16262.71782.71783.48681.09343.76002.50562.50563.76003.81481.76811.76813.81484.3114

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 59.925 C1 C2 H6 118.178
C1 C2 H7 118.178 C1 C3 C2 59.925
C1 C3 H8 118.178 C1 C3 H9 118.178
C1 C4 H10 111.001 C1 C4 H13 111.001
C1 C4 H14 111.285 C1 C5 H11 111.001
C1 C5 H12 111.001 C1 C5 H15 111.285
C2 C1 C3 60.151 C2 C1 C4 117.867
C2 C1 C5 117.867 C2 C3 H8 117.926
C2 C3 H9 117.926 C3 C1 C4 117.867
C3 C1 C5 117.867 C3 C2 H6 117.926
C3 C2 H7 117.926 C4 C1 C5 114.613
H6 C2 H7 114.246 H8 C3 H9 114.246
H10 C4 H13 107.820 H10 C4 H14 107.788
H11 C5 H12 107.820 H11 C5 H15 107.788
H12 C5 H15 107.788 H13 C4 H14 107.788
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.271      
2 C -0.359      
3 C -0.359      
4 C -0.550      
5 C -0.550      
6 H 0.157      
7 H 0.157      
8 H 0.157      
9 H 0.157      
10 H 0.157      
11 H 0.157      
12 H 0.157      
13 H 0.157      
14 H 0.146      
15 H 0.146      


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 0.134 0.134
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.767 0.000 0.000
y 0.000 -32.457 0.000
z 0.000 0.000 -34.376
Traceless
 xyz
x -0.350 0.000 0.000
y 0.000 1.614 0.000
z 0.000 0.000 -1.264
Polar
3z2-r2-2.527
x2-y2-1.309
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.194 0.000 0.000
y 0.000 8.455 0.000
z 0.000 0.000 9.137


<r2> (average value of r2) Å2
<r2> 122.468
(<r2>)1/2 11.067