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

using model chemistry: LSDA/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at LSDA/3-21G
 hartrees
Energy at 0K-304.394301
Energy at 298.15K-304.404728
Nuclear repulsion energy262.204332
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 LSDA/3-21G
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 3099 3048 6.82      
2 A 3092 3041 12.52      
3 A 3082 3031 13.84      
4 A 3064 3013 14.89      
5 A 3005 2956 3.62      
6 A 2980 2931 49.33      
7 A 2959 2911 61.34      
8 A 2943 2895 25.93      
9 A 1496 1471 2.79      
10 A 1490 1466 9.34      
11 A 1479 1455 0.58      
12 A 1477 1453 9.52      
13 A 1393 1370 37.78      
14 A 1362 1340 22.46      
15 A 1335 1313 11.92      
16 A 1328 1306 7.91      
17 A 1253 1232 8.65      
18 A 1209 1190 14.76      
19 A 1173 1154 3.51      
20 A 1137 1119 23.70      
21 A 1131 1113 114.61      
22 A 1095 1078 30.40      
23 A 1061 1044 36.21      
24 A 1022 1005 24.44      
25 A 1000 984 23.12      
26 A 937 922 7.95      
27 A 897 882 1.79      
28 A 832 818 2.21      
29 A 830 817 38.02      
30 A 699 688 3.03      
31 A 606 596 4.81      
32 A 455 448 18.55      
33 A 352 347 1.20      
34 A 256 252 1.64      
35 A 235 231 0.16      
36 A 89 87 9.98      

Unscaled Zero Point Vibrational Energy (zpe) 25926.0 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 25500.8 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 LSDA/3-21G
ABC
0.20244 0.12147 0.09370

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.879 0.003 0.460
H2 2.418 -0.957 0.508
H3 2.581 0.804 0.177
H4 1.460 0.218 1.457
C5 0.755 -0.088 -0.528
H6 1.100 -0.218 -1.571
O7 -0.064 1.107 -0.511
O8 -0.095 -1.199 -0.109
C9 -1.427 -0.648 0.082
H10 -1.916 -1.207 0.895
H11 -2.035 -0.705 -0.843
C12 -1.136 0.802 0.424
H13 -0.805 0.887 1.481
H14 -1.965 1.496 0.223

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 O7 O8 C9 H10 H11 C12 H13 H14
C11.10211.10181.10341.49952.18632.43672.38013.39074.00754.18603.11923.00504.1310
H21.10211.80001.78902.14352.56993.38502.59813.88014.35814.66013.96583.83865.0308
H31.10181.80001.80002.15112.50842.74933.35454.26374.97844.96243.72473.62934.5986
H41.10341.78901.80002.12893.08072.64342.62263.31303.70764.28502.85412.36213.8587
C51.49952.14352.15112.12891.10651.44841.45992.33313.22642.87462.29572.72323.2355
H62.18632.56992.50843.08071.10652.05752.12773.04964.01943.25523.16513.76313.9433
O72.43673.38502.74932.64341.44842.05752.34132.30043.28122.69841.45492.13652.0750
O82.38012.59813.35452.62261.45992.12772.34131.45392.07982.13292.31762.71693.2972
C93.39073.88014.26373.31302.33313.04962.30041.45391.10151.10861.51842.16792.2154
H104.00754.35814.97843.70763.22644.01943.28122.07981.10151.81322.20642.44182.7860
H114.18604.66014.96244.28502.87463.25522.69842.13291.10861.81322.16463.07332.4463
C123.11923.96583.72472.85412.29573.16511.45492.31761.51842.20642.16461.11001.1001
H133.00503.83863.62932.36212.72323.76312.13652.71692.16792.44183.07331.11001.8160
H144.13105.03084.59863.85873.23553.94332.07503.29722.21542.78602.44631.10011.8160

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 113.192 C1 C5 O7 111.484
C1 C5 O8 107.065 H2 C1 H3 109.513
H2 C1 H4 108.419 H2 C1 C5 110.018
H3 C1 H4 109.422 H3 C1 C5 110.636
H4 C1 C5 108.794 C5 O7 C12 104.502
C5 O8 C9 106.398 H6 C5 O7 106.511
H6 C5 O8 111.252 O7 C5 O8 107.224
O7 C12 C9 101.349 O7 C12 H13 112.109
O7 C12 H14 107.795 O8 C9 H10 108.162
O8 C9 H11 111.983 O8 C9 C12 102.454
C9 C12 H13 110.163 C9 C12 H14 114.627
H10 C9 H11 110.253 H10 C9 C12 113.793
H11 C9 C12 109.997 H13 C12 H14 110.501
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.623      
2 H 0.229      
3 H 0.221      
4 H 0.223      
5 C 0.145      
6 H 0.228      
7 O -0.412      
8 O -0.422      
9 C -0.230      
10 H 0.230      
11 H 0.219      
12 C -0.259      
13 H 0.214      
14 H 0.237      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.830 0.235 0.830 1.197
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.304 -0.471 -1.443
y -0.471 -40.966 1.145
z -1.443 1.145 -35.768
Traceless
 xyz
x 7.063 -0.471 -1.443
y -0.471 -7.430 1.145
z -1.443 1.145 0.367
Polar
3z2-r20.734
x2-y29.662
xy-0.471
xz-1.443
yz1.145


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.231 -0.083 -0.358
y -0.083 5.966 0.077
z -0.358 0.077 6.136


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000