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All results from a given calculation for C4H8O2 (1,3-Dioxolane, 2-methyl-)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-307.555199
Energy at 298.15K-307.565629
Nuclear repulsion energy263.281025
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 B3PW91/6-31G*
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 3171 3034 17.36      
2 A 3165 3028 14.67      
3 A 3145 3009 31.28      
4 A 3095 2961 51.47      
5 A 3080 2946 8.33      
6 A 3052 2920 63.05      
7 A 3018 2887 58.81      
8 A 2955 2827 101.34      
9 A 1557 1490 0.42      
10 A 1537 1470 2.66      
11 A 1512 1446 1.64      
12 A 1511 1446 5.71      
13 A 1461 1397 79.75      
14 A 1414 1353 3.76      
15 A 1410 1349 12.64      
16 A 1394 1334 5.05      
17 A 1350 1291 0.98      
18 A 1266 1211 22.16      
19 A 1238 1184 0.79      
20 A 1195 1143 109.52      
21 A 1174 1123 54.19      
22 A 1152 1102 56.50      
23 A 1129 1080 51.75      
24 A 1094 1046 17.76      
25 A 1070 1024 42.30      
26 A 964 923 8.15      
27 A 899 860 7.97      
28 A 896 857 40.89      
29 A 859 822 8.30      
30 A 708 678 1.33      
31 A 681 652 2.87      
32 A 505 483 4.55      
33 A 332 318 5.67      
34 A 234 224 0.32      
35 A 210 201 4.01      
36 A 49 47 4.38      

Unscaled Zero Point Vibrational Energy (zpe) 26740.7 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 25582.9 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 B3PW91/6-31G*
ABC
0.23361 0.11504 0.08539

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.076 0.013 -0.199
H2 -2.630 -0.900 0.040
H3 -2.620 0.872 0.204
H4 -2.001 0.115 -1.285
C5 -0.692 -0.046 0.398
H6 -0.735 -0.161 1.498
O7 0.035 1.138 0.097
O8 0.038 -1.114 -0.155
C9 1.391 -0.753 0.046
H10 2.009 -1.309 -0.664
H11 1.713 -0.997 1.071
C12 1.377 0.764 -0.185
H13 1.612 1.023 -1.225
H14 2.069 1.299 0.477

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 O7 O8 C9 H10 H11 C12 H13 H14
C11.09421.09381.09351.50822.16972.40992.39593.55934.31874.12143.53323.95964.3918
H21.09421.77921.78422.14752.50183.35482.68344.02384.70994.46404.34394.82675.2058
H31.09381.77921.78182.14352.50822.66993.33714.33065.19004.79714.01674.46974.7158
H41.09351.78421.78182.13823.07002.66442.63523.74604.30064.53643.61073.72614.5899
C51.50822.14752.14352.13821.10691.42121.40742.22843.16562.67222.29683.01493.0718
H62.16972.50182.50823.07001.10692.06032.05912.64243.67742.62172.85483.78593.3223
O72.40993.35482.66992.66441.42122.06032.26602.32783.23472.88481.42122.06152.0755
O82.39592.68343.33712.63521.40742.05912.26601.41512.04502.07902.30642.86233.2163
C93.55934.02384.33063.74602.22842.64242.32781.41511.09281.10181.53452.19562.2031
H104.31874.70995.19004.30063.16563.67743.23472.04501.09281.78742.21942.43172.8466
H114.12144.46404.79714.53642.67222.62172.88482.07901.10181.78742.18903.06042.3977
C123.53324.34394.01673.61072.29682.85481.42122.30641.53452.21942.18901.09761.0970
H133.95964.82674.46973.72613.01493.78592.06152.86232.19562.43173.06041.09761.7836
H144.39185.20584.71584.58993.07183.32232.07553.21632.20312.84662.39771.09701.7836

picture of 1,3-Dioxolane, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 111.207 C1 C5 O7 110.667
C1 C5 O8 110.469 H2 C1 H3 108.818
H2 C1 H4 109.284 H2 C1 C5 110.201
H3 C1 H4 109.098 H3 C1 C5 109.909
H4 C1 C5 109.507 C5 O7 C12 107.810
C5 O8 C9 104.275 H6 C5 O7 108.525
H6 C5 O8 109.375 O7 C5 O8 106.462
O7 C12 C9 103.848 O7 C12 H13 109.187
O7 C12 H14 110.354 O8 C9 H10 108.581
O8 C9 H11 110.775 O8 C9 C12 102.800
C9 C12 H13 111.993 C9 C12 H14 112.630
H10 C9 H11 109.070 H10 C9 C12 114.239
H11 C9 C12 111.211 H13 C12 H14 108.723
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.529     0.025
2 H 0.180     0.077
3 H 0.183     -0.011
4 H 0.186     -0.002
5 C 0.345     0.055
6 H 0.134     0.138
7 O -0.499     -0.067
8 O -0.476     -0.217
9 C -0.122     0.187
10 H 0.184     0.146
11 H 0.160     -0.354
12 C -0.075     0.121
13 H 0.167     0.088
14 H 0.163     -0.185


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.071 -0.244 0.355 1.154
CHELPG        
AIM        
ESP 1.334 0.526 2.020 2.477


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.464 -2.434 -1.136
y -2.434 -35.361 0.172
z -1.136 0.172 -39.533
Traceless
 xyz
x 3.983 -2.434 -1.136
y -2.434 1.137 0.172
z -1.136 0.172 -5.121
Polar
3z2-r2-10.241
x2-y21.897
xy-2.434
xz-1.136
yz0.172


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


<r2> (average value of r2) Å2
<r2> 167.214
(<r2>)1/2 12.931