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 C5H12O (1-Pentanol)

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 CS 1A'
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-271.648783
Energy at 298.15K-271.662176
Nuclear repulsion energy241.384847
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' 3644 3486 4.32      
2 A' 3139 3004 40.38      
3 A' 3066 2934 34.91      
4 A' 3053 2921 29.89      
5 A' 3044 2913 34.69      
6 A' 3026 2895 39.80      
7 A' 3019 2889 19.45      
8 A' 1598 1529 1.59      
9 A' 1584 1516 5.87      
10 A' 1574 1506 1.40      
11 A' 1566 1499 1.01      
12 A' 1563 1496 0.12      
13 A' 1486 1422 9.98      
14 A' 1484 1420 1.88      
15 A' 1441 1379 0.72      
16 A' 1409 1348 2.68      
17 A' 1341 1283 9.74      
18 A' 1261 1206 37.29      
19 A' 1155 1106 5.24      
20 A' 1101 1053 0.18      
21 A' 1072 1025 17.85      
22 A' 1018 974 14.99      
23 A' 998 955 52.44      
24 A' 916 876 7.83      
25 A' 498 477 15.32      
26 A' 372 356 0.21      
27 A' 316 302 7.13      
28 A' 138 132 2.45      
29 A" 3137 3002 71.48      
30 A" 3123 2988 53.42      
31 A" 3090 2957 19.03      
32 A" 3063 2931 44.45      
33 A" 3062 2929 6.05      
34 A" 1574 1506 6.57      
35 A" 1376 1316 1.16      
36 A" 1362 1303 1.11      
37 A" 1345 1287 0.32      
38 A" 1292 1236 0.00      
39 A" 1213 1161 1.20      
40 A" 1029 984 0.91      
41 A" 903 864 0.01      
42 A" 808 773 0.54      
43 A" 756 723 2.71      
44 A" 280 268 165.50      
45 A" 248 237 1.37      
46 A" 151 144 3.28      
47 A" 101 96 6.46      
48 A" 75 72 2.75      

Unscaled Zero Point Vibrational Energy (zpe) 36933.4 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 35337.9 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 MP2/6-31G
ABC
0.51443 0.03715 0.03582

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.322 -2.842 0.000
H2 2.209 -3.258 0.000
C3 1.447 -1.372 0.000
H4 1.998 -1.030 0.893
H5 1.998 -1.030 -0.893
C6 0.027 -0.804 0.000
H7 -0.502 -1.190 -0.885
H8 -0.502 -1.190 0.885
C9 0.000 0.742 0.000
H10 0.541 1.121 0.885
H11 0.541 1.121 -0.885
C12 -1.434 1.322 0.000
H13 -1.973 0.942 0.884
H14 -1.973 0.942 -0.884
C15 -1.460 2.867 0.000
H16 -0.950 3.264 0.890
H17 -0.950 3.264 -0.890
H18 -2.491 3.248 0.000

Atom - Atom Distances (Å)
  O1 H2 C3 H4 H5 C6 H7 H8 C9 H10 H11 C12 H13 H14 C15 H16 H17 H18
O10.97971.47562.12972.12972.41482.61522.61523.82024.13464.13464.99305.09455.09456.35026.57536.57537.1849
H20.97972.03452.40962.40963.28433.52283.52284.56994.76874.76875.85205.99255.99257.13977.30147.30148.0261
C31.47562.03451.10321.10321.53022.14872.14872.56212.79592.79593.94434.22314.22315.13975.29425.29426.0705
H42.12972.40961.10321.78642.17603.07182.50472.81632.59803.14834.25544.43394.77665.28595.20885.50546.2650
H52.12972.40961.10321.78642.17602.50473.07182.81633.14832.59804.25544.77664.43395.28595.50545.20886.2650
C62.41483.28431.53022.17602.17601.10071.10071.54642.17992.17992.57902.79772.79773.96014.27704.27704.7702
H72.61523.52282.14873.07182.50471.10071.77032.18363.09182.53482.82123.13622.58994.26094.81534.47634.9429
H82.61523.52282.14872.50473.07181.10071.77032.18362.53483.09182.82122.58993.13624.26094.47634.81534.9429
C93.82024.56992.56212.81632.81631.54642.18362.18361.10431.10431.54682.17132.17132.57762.83772.83773.5330
H104.13464.76872.79592.59803.14832.17993.09182.53481.10431.77042.17392.52083.07952.79932.61093.15713.8080
H114.13464.76872.79593.14832.59802.17992.53483.09181.10431.77042.17393.07952.52082.79933.15712.61093.8080
C124.99305.85203.94434.25544.25542.57902.82122.82121.54682.17392.17391.10261.10261.54542.19092.19092.1972
H135.09455.99254.22314.43394.77662.79773.13622.58992.17132.52083.07951.10261.76722.17952.53813.09622.5235
H145.09455.99254.22314.77664.43392.79772.58993.13622.17133.07952.52081.10261.76722.17953.09622.53812.5235
C156.35027.13975.13975.28595.28593.96014.26094.26092.57762.79932.79931.54542.17952.17951.09991.09991.0991
H166.57537.30145.29425.20885.50544.27704.81534.47632.83772.61093.15712.19092.53813.09621.09991.77931.7794
H176.57537.30145.29425.50545.20884.27704.47634.81532.83773.15712.61092.19093.09622.53811.09991.77931.7794
H187.18498.02616.07056.26506.26504.77024.94294.94293.53303.80803.80802.19722.52352.52351.09911.77941.7794

picture of 1-Pentanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C3 H4 110.525 O1 C3 H5 110.525
O1 C3 C6 106.898 H2 O1 C3 110.281
C3 C6 H7 108.406 C3 C6 H8 108.406
C3 C6 C9 112.766 H4 C3 H5 108.126
H4 C3 C6 110.391 H5 C3 C6 110.391
C6 C9 H10 109.518 C6 C9 H11 109.518
C6 C9 C12 112.974 H7 C6 H8 107.054
H7 C6 C9 110.013 H8 C6 C9 110.013
C9 C12 H13 108.928 C9 C12 H14 108.928
C9 C12 C15 112.940 H10 C9 H11 106.569
H10 C9 C12 109.029 H11 C9 C12 109.029
C12 C15 H16 110.709 C12 C15 H17 110.709
C12 C15 H18 111.259 H13 C12 H14 106.521
H13 C12 C15 109.658 H14 C12 C15 109.658
H16 C15 H17 107.969 H16 C15 H18 108.035
H17 C15 H18 108.035
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability