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

using model chemistry: MP2/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-306.311253
Energy at 298.15K-306.322199
HF Energy-305.730066
Nuclear repulsion energy255.941956
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/LANL2DZ
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 3144 3028 0.00      
2 Ag 3034 2922 0.00      
3 Ag 1518 1462 0.00      
4 Ag 1410 1358 0.00      
5 Ag 1299 1251 0.00      
6 Ag 1152 1110 0.00      
7 Ag 1003 966 0.00      
8 Ag 776 747 0.00      
9 Ag 413 397 0.00      
10 Ag 390 375 0.00      
11 Au 3141 3025 73.39      
12 Au 3033 2921 70.29      
13 Au 1508 1453 1.43      
14 Au 1384 1333 13.06      
15 Au 1253 1206 26.58      
16 Au 1111 1070 25.90      
17 Au 1071 1032 81.04      
18 Au 873 841 30.66      
19 Au 233 224 2.88      
20 Bg 3146 3030 0.00      
21 Bg 3036 2924 0.00      
22 Bg 1506 1451 0.00      
23 Bg 1368 1318 0.00      
24 Bg 1201 1157 0.00      
25 Bg 1068 1028 0.00      
26 Bg 847 816 0.00      
27 Bg 462 445 0.00      
28 Bu 3148 3032 68.03      
29 Bu 3037 2925 148.60      
30 Bu 1512 1456 13.90      
31 Bu 1418 1365 1.46      
32 Bu 1278 1231 3.95      
33 Bu 1042 1004 10.95      
34 Bu 782 753 43.14      
35 Bu 588 567 24.88      
36 Bu 257 248 34.34      

Unscaled Zero Point Vibrational Energy (zpe) 26720.1 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 25734.1 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 MP2/LANL2DZ
ABC
0.15611 0.14892 0.08584

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.774 1.226
C2 0.000 0.774 -1.226
C3 0.000 -0.774 1.226
C4 0.000 -0.774 -1.226
O5 -0.693 -1.279 0.000
O6 0.693 1.279 0.000
H7 -1.040 1.156 1.240
H8 -1.040 1.156 -1.240
H9 1.040 -1.156 -1.240
H10 1.040 -1.156 1.240
H11 0.572 1.189 -2.070
H12 0.572 1.189 2.070
H13 -0.572 -1.189 -2.070
H14 -0.572 -1.189 2.070

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13 H14
C12.45141.54862.89962.48951.49551.10752.70303.29932.19233.37091.10113.87882.2123
C22.45142.89961.54862.48951.49552.70301.10752.19233.29931.10113.37092.21233.8788
C31.54862.89962.45141.49552.48952.19233.29932.70301.10753.87882.21233.37091.1011
C42.89961.54862.45141.49552.48953.29932.19231.10752.70302.21233.87881.10113.3709
O52.48952.48951.49551.49552.90872.75412.75412.13392.13393.46043.46042.07592.0759
O61.49551.49552.48952.48952.90872.13392.13392.75412.75412.07592.07593.46043.4604
H71.10752.70302.19233.29932.75412.13392.48003.97703.10913.68201.81334.08342.5308
H82.70301.10753.29932.19232.75412.13392.48003.10913.97701.81333.68202.53084.0834
H93.29932.19232.70301.10752.13392.75413.97703.10912.48002.53084.08341.81333.6820
H102.19233.29931.10752.70302.13392.75413.10913.97702.48004.08342.53083.68201.8133
H113.37091.10113.87882.21233.46042.07593.68201.81332.53084.08344.14082.63844.9099
H121.10113.37092.21233.87883.46042.07591.81333.68204.08342.53084.14084.90992.6384
H133.87882.21233.37091.10112.07593.46044.08342.53081.81333.68202.63844.90994.1408
H142.21233.87881.10113.37092.07593.46042.53084.08343.68201.81334.90992.63844.1408

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 109.718 C1 C3 H10 110.142
C1 C3 H14 112.110 C1 O6 C2 110.088
C2 C4 O5 109.718 C2 C4 H9 110.142
C2 C4 H13 112.110 C3 C1 O6 109.718
C3 C1 H7 110.142 C3 C1 H12 112.110
C3 O5 C4 110.088 C4 C2 O6 109.718
C4 C2 H8 110.142 C4 C2 H11 112.110
O5 C3 H10 109.213 O5 C3 H14 105.143
O5 C4 H9 109.213 O5 C4 H13 105.143
O6 C1 H7 109.213 O6 C1 H12 105.143
O6 C2 H8 109.213 O6 C2 H11 105.143
H7 C1 H12 110.373 H8 C2 H11 110.373
H9 C4 H13 110.373 H10 C3 H14 110.373
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability