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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-307.293753
Energy at 298.15K-307.304008
Nuclear repulsion energy261.364931
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 PBEPBEultrafine/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3098 3047 15.06      
2 A 3093 3042 12.78      
3 A 3063 3012 28.97      
4 A 3008 2958 9.40      
5 A 3003 2954 51.10      
6 A 2966 2917 68.11      
7 A 2927 2879 58.82      
8 A 2851 2804 106.63      
9 A 1509 1484 0.70      
10 A 1487 1463 2.55      
11 A 1468 1444 1.70      
12 A 1467 1443 4.66      
13 A 1408 1385 74.11      
14 A 1367 1344 2.80      
15 A 1359 1337 13.45      
16 A 1343 1321 5.18      
17 A 1299 1278 1.05      
18 A 1220 1200 16.21      
19 A 1193 1173 0.39      
20 A 1152 1133 49.10      
21 A 1130 1111 44.19      
22 A 1109 1090 78.96      
23 A 1085 1067 51.98      
24 A 1043 1026 32.50      
25 A 1022 1005 47.28      
26 A 933 917 8.12      
27 A 865 851 4.36      
28 A 852 838 41.12      
29 A 827 813 16.06      
30 A 683 672 0.93      
31 A 662 651 2.24      
32 A 494 486 3.65      
33 A 321 316 5.46      
34 A 224 220 0.48      
35 A 204 201 4.13      
36 A 44 43 3.16      

Unscaled Zero Point Vibrational Energy (zpe) 25888.9 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 25461.8 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 PBEPBEultrafine/6-31G*
ABC
0.23035 0.11363 0.08409

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.091 0.013 -0.183
H2 -2.646 -0.903 0.075
H3 -2.631 0.882 0.226
H4 -2.033 0.108 -1.278
C5 -0.692 -0.043 0.394
H6 -0.714 -0.156 1.505
O7 0.031 1.151 0.067
O8 0.034 -1.123 -0.174
C9 1.396 -0.762 0.052
H10 2.025 -1.321 -0.657
H11 1.705 -1.014 1.089
C12 1.393 0.767 -0.168
H13 1.669 1.040 -1.204
H14 2.072 1.293 0.530

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 O7 O8 C9 H10 H11 C12 H13 H14
C11.10181.10141.10131.51402.18542.42122.40983.57974.35324.13303.56464.02954.4127
H21.10181.79121.79762.15842.51783.37492.70074.04484.74744.46934.37764.90265.2236
H31.10141.79121.79452.15412.52732.68033.35854.35235.22604.80984.04444.53424.7297
H41.10131.79761.79452.14853.09192.67532.64733.77914.34714.56443.66073.81804.6386
C51.51402.15842.15412.14851.11751.43441.41992.23463.18182.67812.30673.05033.0729
H62.18542.51782.52733.09191.11752.08172.07712.63233.67942.59982.84453.80133.2876
O72.42123.37492.68032.67531.43442.08172.28722.34953.25742.92101.43412.07592.0968
O82.40982.70073.35852.64731.41992.07712.28721.42722.05902.09752.32812.90123.2380
C93.57974.04484.35233.77912.23462.63232.34951.42721.10111.11101.54422.21332.2146
H104.35324.74745.22604.34713.18183.67943.25742.05901.10111.80192.23552.44942.8707
H114.13304.46934.80984.56442.67812.59982.92102.09751.11101.80192.20203.07862.4013
C123.56464.37764.04443.66072.30672.84451.43412.32811.54422.23552.20201.10621.1064
H134.02954.90264.53423.81803.05033.80132.07592.90122.21332.44943.07861.10621.7976
H144.41275.22364.72974.63863.07293.28762.09683.23802.21462.87072.40131.10641.7976

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 111.412 C1 C5 O7 110.382
C1 C5 O8 110.401 H2 C1 H3 108.780
H2 C1 H4 109.355 H2 C1 C5 110.211
H3 C1 H4 109.109 H3 C1 C5 109.901
H4 C1 C5 109.463 C5 O7 C12 107.058
C5 O8 C9 103.414 H6 C5 O7 108.688
H6 C5 O8 109.310 O7 C5 O8 106.509
O7 C12 C9 104.100 O7 C12 H13 108.929
O7 C12 H14 110.583 O8 C9 H10 108.362
O8 C9 H11 110.836 O8 C9 C12 103.092
C9 C12 H13 112.191 C9 C12 H14 112.281
H10 C9 H11 109.087 H10 C9 C12 114.313
H11 C9 C12 110.999 H13 C12 H14 108.665
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.503      
2 H 0.170      
3 H 0.174      
4 H 0.177      
5 C 0.310      
6 H 0.119      
7 O -0.449      
8 O -0.426      
9 C -0.118      
10 H 0.170      
11 H 0.148      
12 C -0.077      
13 H 0.156      
14 H 0.149      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.968 -0.252 0.376 1.069
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.090 -0.206 -0.688
y -0.206 -40.204 -0.563
z -0.688 -0.563 -35.802
Traceless
 xyz
x 6.913 -0.206 -0.688
y -0.206 -6.758 -0.563
z -0.688 -0.563 -0.156
Polar
3z2-r2-0.311
x2-y29.114
xy-0.206
xz-0.688
yz-0.563


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.836 0.047 -0.166
y 0.047 6.504 -0.117
z -0.166 -0.117 6.574


<r2> (average value of r2) Å2
<r2> 151.180
(<r2>)1/2 12.296