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-272.013489
Energy at 298.15K-272.026938
HF Energy-271.178013
Nuclear repulsion energy244.554535
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' 3775 3560 22.47      
2 A' 3192 3010 30.07      
3 A' 3109 2932 35.72      
4 A' 3102 2925 27.70      
5 A' 3096 2919 20.31      
6 A' 3078 2902 15.75      
7 A' 3047 2873 45.35      
8 A' 1594 1503 2.75      
9 A' 1574 1485 6.08      
10 A' 1564 1475 0.70      
11 A' 1555 1466 1.00      
12 A' 1552 1464 0.05      
13 A' 1505 1419 9.69      
14 A' 1471 1387 2.93      
15 A' 1453 1370 0.52      
16 A' 1395 1316 8.38      
17 A' 1326 1250 31.21      
18 A' 1267 1195 28.21      
19 A' 1161 1095 2.82      
20 A' 1117 1053 0.16      
21 A' 1106 1043 70.31      
22 A' 1079 1017 11.25      
23 A' 1043 983 14.33      
24 A' 933 880 3.89      
25 A' 506 477 12.87      
26 A' 373 352 0.10      
27 A' 322 304 5.24      
28 A' 138 130 1.77      
29 A" 3190 3008 44.90      
30 A" 3168 2988 48.32      
31 A" 3146 2967 13.50      
32 A" 3121 2943 4.49      
33 A" 3090 2914 50.00      
34 A" 1565 1476 7.00      
35 A" 1374 1296 0.89      
36 A" 1359 1282 0.97      
37 A" 1339 1263 0.11      
38 A" 1279 1206 0.18      
39 A" 1229 1159 1.46      
40 A" 1019 961 1.17      
41 A" 892 841 0.03      
42 A" 798 752 0.53      
43 A" 754 711 3.06      
44 A" 297 280 131.93      
45 A" 258 244 0.78      
46 A" 158 149 2.07      
47 A" 100 94 3.91      
48 A" 78 73 2.67      

Unscaled Zero Point Vibrational Energy (zpe) 37322.3 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 35195.0 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
0.52592 0.03822 0.03685

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 1.303 -2.788 0.000
H2 2.201 -3.156 0.000
C3 1.419 -1.366 0.000
H4 1.965 -1.010 0.888
H5 1.965 -1.010 -0.888
C6 0.015 -0.799 0.000
H7 -0.513 -1.183 -0.881
H8 -0.513 -1.183 0.881
C9 0.000 0.726 0.000
H10 0.541 1.100 0.880
H11 0.541 1.100 -0.880
C12 -1.413 1.302 0.000
H13 -1.953 0.928 0.878
H14 -1.953 0.928 -0.878
C15 -1.426 2.826 0.000
H16 -0.915 3.221 0.884
H17 -0.915 3.221 -0.884
H18 -2.448 3.215 0.000

Atom - Atom Distances (Å)
  O1 H2 C3 H4 H5 C6 H7 H8 C9 H10 H11 C12 H13 H14 C15 H16 H17 H18
O10.97121.42662.09422.09422.36932.57812.57813.74754.05854.05854.90875.01755.01756.24186.46596.46597.0780
H20.97121.95332.33412.33413.21493.46913.46914.46274.65264.65265.73855.89125.89126.99587.15287.15287.8868
C31.42661.95331.10091.10091.51472.13142.13142.52812.76202.76203.89064.17204.17205.06655.22255.22255.9950
H42.09422.33411.10091.77552.15293.04882.48362.76832.54603.09934.18814.37084.71425.19645.11865.41676.1735
H52.09422.33411.10091.77552.15292.48363.04882.76833.09932.54604.18814.71424.37085.19645.41675.11866.1735
C62.36933.21491.51472.15292.15291.09611.09611.52512.15832.15832.53972.76142.76143.90094.21994.21994.7091
H72.57813.46912.13143.04882.48361.09611.76122.16403.06972.51492.78543.10212.55524.20514.76154.42244.8847
H82.57813.46912.13142.48363.04881.09611.76122.16402.51493.06972.78542.55523.10214.20514.42244.76154.8847
C93.74754.46272.52812.76832.76831.52512.16402.16401.09851.09851.52542.15082.15082.53842.80092.80093.4909
H104.05854.65262.76202.54603.09932.15833.06972.51491.09851.75932.15202.49993.05622.76052.57273.11933.7655
H114.05854.65262.76203.09932.54602.15832.51493.06971.09851.75932.15203.05622.49992.76053.11932.57273.7655
C124.90875.73853.89064.18814.18812.53972.78542.78541.52542.15202.15201.09691.09691.52472.17092.17092.1753
H135.01755.89124.17204.37084.71422.76143.10212.55522.15082.49993.05621.09691.75682.15732.51693.07272.4993
H145.01755.89124.17204.71424.37082.76142.55523.10212.15083.05622.49991.09691.75682.15733.07272.51692.4993
C156.24186.99585.06655.19645.19643.90094.20514.20512.53842.76052.76051.52472.15732.15731.09441.09441.0938
H166.46597.15285.22255.11865.41674.21994.76154.42242.80092.57273.11932.17092.51693.07271.09441.76841.7694
H176.46597.15285.22255.41675.11864.21994.42244.76152.80093.11932.57272.17093.07272.51691.09441.76841.7694
H187.07807.88685.99506.17356.17354.70914.88474.88473.49093.76553.76552.17532.49932.49931.09381.76941.7694

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 111.256 O1 C3 H5 111.256
O1 C3 C6 107.287 H2 O1 C3 107.583
C3 C6 H7 108.378 C3 C6 H8 108.378
C3 C6 C9 112.545 H4 C3 H5 107.490
H4 C3 C6 109.778 H5 C3 C6 109.778
C6 C9 H10 109.631 C6 C9 H11 109.631
C6 C9 C12 112.730 H7 C6 H8 106.909
H7 C6 C9 110.222 H8 C6 C9 110.222
C9 C12 H13 109.118 C9 C12 H14 109.118
C9 C12 C15 112.659 H10 C9 H11 106.408
H10 C9 C12 109.120 H11 C9 C12 109.120
C12 C15 H16 110.897 C12 C15 H17 110.897
C12 C15 H18 111.287 H13 C12 H14 106.409
H13 C12 C15 109.670 H14 C12 C15 109.670
H16 C15 H17 107.785 H16 C15 H18 107.914
H17 C15 H18 107.914
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability