return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C6H12O2 (Methyl pivalate)

using model chemistry: MP2/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-384.563916
Energy at 298.15K-384.577379
HF Energy-383.755465
Nuclear repulsion energy404.465717
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 MP2/6-31G
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 3229 3090 12.36      
2 A 3190 3052 21.05      
3 A 3168 3032 32.71      
4 A 3165 3028 4.40      
5 A 3159 3022 20.66      
6 A 3149 3013 38.32      
7 A 3136 3001 23.26      
8 A 3134 2999 12.52      
9 A 3094 2961 24.51      
10 A 3062 2930 21.90      
11 A 3055 2923 11.18      
12 A 3054 2922 30.72      
13 A 1666 1594 107.71      
14 A 1588 1519 22.01      
15 A 1574 1506 12.86      
16 A 1572 1504 7.23      
17 A 1567 1499 4.63      
18 A 1565 1497 0.01      
19 A 1559 1492 0.18      
20 A 1555 1487 5.96      
21 A 1554 1487 0.46      
22 A 1506 1441 5.34      
23 A 1492 1428 9.17      
24 A 1469 1405 5.68      
25 A 1462 1399 7.29      
26 A 1344 1286 28.98      
27 A 1295 1239 2.76      
28 A 1278 1223 2.27      
29 A 1203 1151 33.95      
30 A 1176 1125 1.88      
31 A 1175 1124 329.05      
32 A 1091 1044 0.31      
33 A 1091 1044 26.43      
34 A 1015 971 0.02      
35 A 982 939 1.76      
36 A 970 928 1.29      
37 A 960 918 14.61      
38 A 858 821 9.53      
39 A 772 739 7.85      
40 A 749 716 4.45      
41 A 591 566 2.73      
42 A 504 482 2.97      
43 A 392 375 1.22      
44 A 366 350 7.02      
45 A 349 334 0.87      
46 A 323 309 11.13      
47 A 291 278 4.04      
48 A 265 254 0.02      
49 A 252 241 2.57      
50 A 217 208 0.75      
51 A 198 190 2.82      
52 A 132 126 3.69      
53 A 120 115 1.15      
54 A 48 46 0.37      

Unscaled Zero Point Vibrational Energy (zpe) 38862.9 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 37184.0 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 MP2/6-31G
ABC
0.10209 0.04854 0.04257

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.941 1.127 -0.000
C2 -0.989 -0.094 -0.000
C3 0.455 0.409 -0.000
C4 -1.226 -0.958 -1.271
C5 -1.226 -0.957 1.272
O6 1.369 -0.650 -0.000
O7 0.830 1.605 -0.000
C8 2.806 -0.257 0.000
H9 -1.777 1.751 -0.889
H10 -1.776 1.751 0.887
H11 -2.982 0.775 -0.000
H12 -0.565 -1.833 -1.272
H13 -1.035 -0.369 -2.181
H14 -2.272 -1.295 -1.291
H15 -0.565 -1.832 1.273
H16 -1.035 -0.367 2.181
H17 -2.272 -1.295 1.292
H18 3.339 -1.209 0.003
H19 3.033 0.333 0.893
H20 3.035 0.328 -0.896

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 C8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18 H19 H20
C11.54752.50122.54392.54393.75652.81214.94411.09791.09791.09953.50292.79492.76473.50292.79492.76485.77315.11545.1183
C21.54751.52951.55511.55522.42292.48943.79842.19352.19352.17412.19632.19842.18132.19632.19842.18144.46934.14234.1441
C32.50121.52952.51212.51201.39881.25342.44302.75152.75143.45712.77252.75333.46602.77242.75323.46593.30652.72932.7319
C42.54391.55512.51212.54292.90563.52324.28482.79023.50742.77531.09671.10011.09982.77043.50722.78914.74584.94874.4663
C52.54391.55522.51202.54292.90603.52274.28473.50742.79022.77532.77043.50732.78911.09671.10011.09984.74424.46604.9500
O63.75652.42291.39882.90562.90602.31861.48944.05554.05574.57862.59953.25743.91692.59983.25793.91712.04762.12942.1293
O72.81212.48941.25343.52323.52272.31862.71492.75822.75783.90223.92263.48314.43943.92223.48234.43913.76982.69592.7007
C84.94413.79842.44304.28484.28471.48942.71495.08135.08125.87933.93234.41785.34143.93214.41765.34131.09071.09461.0946
H91.09792.19352.75152.79023.50744.05552.75825.08131.77631.78773.80242.59093.11244.35653.80263.77845.97685.32155.0175
H101.09792.19352.75143.50742.79024.05572.75785.08121.77631.78774.35653.80263.77833.80242.59083.11245.97595.01445.3251
H111.09952.17413.45712.77532.77534.57863.90225.87931.78771.78773.77653.13932.54113.77653.13932.54116.62516.09756.1000
H123.50292.19632.77251.09672.77042.59953.92263.93233.80244.35653.77651.78591.79002.54533.78033.12724.15404.72524.2156
H132.79492.19842.75331.10013.50733.25743.48314.41782.59093.80263.13931.78591.78343.78034.36143.80114.96015.14684.3242
H142.76472.18133.46601.09982.78913.91694.43945.34143.11243.77832.54111.79001.78343.12733.80112.58355.75915.96425.5640
H153.50292.19632.77242.77041.09672.59983.92223.93214.35653.80243.77652.54533.78033.12731.78591.79004.15214.21644.7255
H162.79492.19842.75323.50721.10013.25793.48234.41763.80262.59083.13933.78034.36143.80111.78591.78344.95744.32385.1489
H172.76482.18143.46592.78911.09983.91714.43915.34133.77843.11242.54113.12723.80112.58351.79001.78345.75775.56365.9654
H185.77314.46933.30654.74584.74422.04763.76981.09075.97685.97596.62514.15404.96015.75914.15214.95745.75771.80641.8064
H195.11544.14232.72934.94874.46602.12942.69591.09465.32155.01446.09754.72525.14685.96424.21644.32385.56361.80641.7893
H205.11834.14412.73194.46634.95002.12932.70071.09465.01755.32516.10004.21564.32425.56404.72555.14895.96541.80641.7893

picture of Methyl pivalate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 108.748 C1 C2 C4 110.147
C1 C2 C5 110.147 C2 C1 H9 110.881
C2 C1 H10 110.882 C2 C1 H11 109.270
C2 C3 O6 111.582 C2 C3 O7 126.609
C2 C4 H12 110.639 C2 C4 H13 110.607
C2 C4 H14 109.294 C2 C5 H15 110.637
C2 C5 H16 110.606 C2 C5 H17 109.295
C3 C2 C4 109.047 C3 C2 C5 109.040
C3 O6 C8 115.491 C4 C2 C5 109.683
O6 C3 O7 121.809 O6 C8 H18 103.974
O6 C8 H19 110.051 O6 C8 H20 110.046
H9 C1 H10 107.988 H9 C1 H11 108.884
H10 C1 H11 108.885 H12 C4 H13 108.768
H12 C4 H14 109.159 H13 C4 H14 108.327
H15 C5 H16 108.770 H15 C5 H17 109.159
H16 C5 H17 108.328 H18 C8 H19 111.509
H18 C8 H20 111.503 H19 C8 H20 109.637
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability