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All results from a given calculation for C4H8O2 (1,4-Dioxane)

using model chemistry: MP2/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at MP2/cc-pVDZ
 hartrees
Energy at 0K-306.766691
Energy at 298.15K-306.777963
HF Energy-305.842973
Nuclear repulsion energy263.978182
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 MP2/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3157 3007 0.00      
2 Ag 3035 2891 0.00      
3 Ag 1493 1422 0.00      
4 Ag 1436 1368 0.00      
5 Ag 1337 1274 0.00      
6 Ag 1151 1096 0.00      
7 Ag 1059 1009 0.00      
8 Ag 866 825 0.00      
9 Ag 442 421 0.00      
10 Ag 430 409 0.00      
11 Au 3156 3006 82.91      
12 Au 3031 2887 49.88      
13 Au 1476 1406 0.21      
14 Au 1402 1335 35.18      
15 Au 1286 1225 38.33      
16 Au 1190 1134 154.28      
17 Au 1112 1059 5.48      
18 Au 912 869 24.41      
19 Au 251 239 0.92      
20 Bg 3156 3006 0.00      
21 Bg 3037 2893 0.00      
22 Bg 1472 1402 0.00      
23 Bg 1355 1290 0.00      
24 Bg 1242 1183 0.00      
25 Bg 1165 1110 0.00      
26 Bg 872 831 0.00      
27 Bg 480 458 0.00      
28 Bu 3157 3007 52.25      
29 Bu 3041 2896 155.33      
30 Bu 1487 1416 11.43      
31 Bu 1411 1344 4.93      
32 Bu 1323 1260 10.53      
33 Bu 1075 1024 9.96      
34 Bu 917 874 67.01      
35 Bu 608 579 11.31      
36 Bu 282 268 18.11      

Unscaled Zero Point Vibrational Energy (zpe) 27150.5 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 25860.9 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 MP2/cc-pVDZ
ABC
0.17070 0.15501 0.09166

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.762 1.160
C2 0.000 0.762 -1.160
C3 0.000 -0.762 1.160
C4 0.000 -0.762 -1.160
O5 -0.656 -1.263 0.000
O6 0.656 1.263 0.000
H7 -1.049 1.125 1.195
H8 -1.049 1.125 -1.195
H9 1.049 -1.125 -1.195
H10 1.049 -1.125 1.195
H11 0.545 1.156 -2.032
H12 0.545 1.156 2.032
H13 -0.545 -1.156 -2.032
H14 -0.545 -1.156 2.032

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13 H14
C12.31941.52322.77492.42361.42371.11042.60283.19392.15853.26211.10193.76352.1763
C22.31942.77491.52322.42361.42372.60281.11042.15853.19391.10193.26212.17633.7635
C31.52322.77492.31941.42372.42362.15853.19392.60281.11043.76352.17633.26211.1019
C42.77491.52322.31941.42372.42363.19392.15851.11042.60282.17633.76351.10193.2621
O52.42362.42361.42371.42372.84632.69842.69842.08642.08643.38013.38012.03812.0381
O61.42371.42372.42362.42362.84632.08642.08642.69842.69842.03812.03813.38013.3801
H71.11042.60282.15853.19392.69842.08642.38933.89463.07563.59921.80083.98362.4815
H82.60281.11043.19392.15852.69842.08642.38933.07563.89461.80083.59922.48153.9836
H93.19392.15852.60281.11042.08642.69843.89463.07562.38932.48153.98361.80083.5992
H102.15853.19391.11042.60282.08642.69843.07563.89462.38933.98362.48153.59921.8008
H113.26211.10193.76352.17633.38012.03813.59921.80082.48153.98364.06452.55664.8017
H121.10193.26212.17633.76353.38012.03811.80083.59923.98362.48154.06454.80172.5566
H133.76352.17633.26211.10192.03813.38013.98362.48151.80083.59922.55664.80174.0645
H142.17633.76351.10193.26212.03813.38012.48153.98363.59921.80084.80172.55664.0645

picture of 1,4-Dioxane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 O5 110.613 C1 C3 H10 109.088
C1 C3 H14 110.986 C1 O6 C2 109.097
C2 C4 O5 110.613 C2 C4 H9 109.088
C2 C4 H13 110.986 C3 C1 O6 110.613
C3 C1 H7 109.088 C3 C1 H12 110.986
C3 O5 C4 109.097 C4 C2 O6 110.613
C4 C2 H8 109.088 C4 C2 H11 110.986
O5 C3 H10 110.233 O5 C3 H14 106.912
O5 C4 H9 110.233 O5 C4 H13 106.912
O6 C1 H7 110.233 O6 C1 H12 106.912
O6 C2 H8 110.233 O6 C2 H11 106.912
H7 C1 H12 108.980 H8 C2 H11 108.980
H9 C4 H13 108.980 H10 C3 H14 108.980
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability