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

using model chemistry: TPSSh/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at TPSSh/6-31+G**
 hartrees
Energy at 0K-307.703510
Energy at 298.15K-307.713831
HF Energy-307.703510
Nuclear repulsion energy261.892374
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 TPSSh/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 3154 3036 20.88      
2 A 3144 3027 16.21      
3 A 3137 3019 30.95      
4 A 3092 2976 39.73      
5 A 3063 2948 12.42      
6 A 3048 2934 72.39      
7 A 3013 2900 59.60      
8 A 2950 2839 97.37      
9 A 1544 1486 0.34      
10 A 1526 1469 2.06      
11 A 1506 1449 2.38      
12 A 1504 1448 5.00      
13 A 1441 1387 64.49      
14 A 1401 1349 6.56      
15 A 1383 1331 13.55      
16 A 1376 1324 0.52      
17 A 1333 1283 1.14      
18 A 1250 1203 16.16      
19 A 1222 1177 1.92      
20 A 1175 1131 45.21      
21 A 1154 1111 43.28      
22 A 1128 1085 91.33      
23 A 1107 1066 49.83      
24 A 1055 1015 26.82      
25 A 1033 994 58.39      
26 A 947 912 11.74      
27 A 872 840 9.24      
28 A 867 835 55.42      
29 A 840 809 13.04      
30 A 687 661 1.01      
31 A 672 647 3.33      
32 A 495 476 4.24      
33 A 321 309 6.50      
34 A 216 208 0.51      
35 A 197 190 5.33      
36 A 45 44 5.06      

Unscaled Zero Point Vibrational Energy (zpe) 26450.0 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 25458.1 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 TPSSh/6-31+G**
ABC
0.23285 0.11344 0.08410

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.079 0.014 -0.227
H2 -2.633 -0.904 -0.012
H3 -2.635 0.865 0.175
H4 -1.977 0.130 -1.309
C5 -0.705 -0.047 0.411
H6 -0.785 -0.166 1.507
O7 0.041 1.138 0.138
O8 0.041 -1.120 -0.129
C9 1.404 -0.752 0.036
H10 2.002 -1.308 -0.688
H11 1.755 -0.987 1.053
C12 1.375 0.769 -0.211
H13 1.560 1.015 -1.264
H14 2.088 1.317 0.414

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 O7 O8 C9 H10 H11 C12 H13 H14
C11.09371.09311.09311.51562.17142.42672.40643.57554.31444.16413.53543.91434.4130
H21.09371.77901.78422.15152.50373.36752.68544.03984.70154.51604.34764.77855.2349
H31.09311.77901.78212.14682.50162.68943.34554.35205.19274.84454.02914.43764.7504
H41.09311.78421.78212.14643.07282.67972.65163.74414.27654.55603.58473.64684.5724
C51.51562.15152.14682.14641.10581.42651.41412.25503.18232.71102.31943.01093.1088
H62.17142.50372.50163.07281.10582.06312.06622.70133.72702.70782.91373.81753.4127
O72.42673.36752.68942.67971.42652.06312.27362.33203.24182.87961.42742.07122.0740
O82.40642.68543.34552.65161.41412.06622.27361.42112.04792.08582.31402.85573.2287
C93.57554.03984.35203.74412.25502.70132.33201.42111.09171.10111.54092.19892.2113
H104.31444.70155.19274.27653.18233.72703.24182.04791.09171.78732.22122.43312.8479
H114.16414.51604.84454.55602.71102.70782.87962.08581.10111.78732.19683.06812.4140
C123.53544.34764.02913.58472.31942.91371.42742.31401.54092.22122.19681.09721.0955
H133.91434.77854.43763.64683.01093.81752.07122.85572.19892.43313.06811.09721.7852
H144.41305.23494.75044.57243.10883.41272.07403.22872.21132.84792.41401.09551.7852

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 110.884 C1 C5 O7 111.101
C1 C5 O8 110.396 H2 C1 H3 108.881
H2 C1 H4 109.344 H2 C1 C5 110.029
H3 C1 H4 109.207 H3 C1 C5 109.699
H4 C1 C5 109.661 C5 O7 C12 108.721
C5 O8 C9 105.376 H6 C5 O7 108.448
H6 C5 O8 109.549 O7 C5 O8 106.337
O7 C12 C9 103.492 O7 C12 H13 109.551
O7 C12 H14 109.886 O8 C9 H10 108.459
O8 C9 H11 110.941 O8 C9 C12 102.673
C9 C12 H13 111.820 C9 C12 H14 112.938
H10 C9 H11 109.186 H10 C9 C12 113.984
H11 C9 C12 111.422 H13 C12 H14 109.011
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.436      
2 H 0.168      
3 H 0.170      
4 H 0.182      
5 C -0.047      
6 H 0.129      
7 O -0.329      
8 O -0.301      
9 C -0.061      
10 H 0.161      
11 H 0.146      
12 C -0.079      
13 H 0.152      
14 H 0.145      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.174 -0.256 0.561 1.326
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.470 0.029 -0.095
y 0.029 7.472 -0.097
z -0.095 -0.097 7.294


<r2> (average value of r2) Å2
<r2> 151.245
(<r2>)1/2 12.298