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/CEP-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/CEP-31G
 hartrees
Energy at 0K-50.511628
Energy at 298.15K-50.524772
HF Energy-49.991946
Nuclear repulsion energy138.097666
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/CEP-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' 3677 3553 5.49      
2 A' 3125 3020 72.12      
3 A' 3056 2953 51.74      
4 A' 3034 2932 48.52      
5 A' 3023 2921 116.25      
6 A' 3020 2918 43.37      
7 A' 3016 2914 5.62      
8 A' 1548 1495 2.96      
9 A' 1535 1483 8.08      
10 A' 1529 1477 0.48      
11 A' 1522 1470 0.11      
12 A' 1519 1467 0.39      
13 A' 1462 1413 13.27      
14 A' 1451 1402 2.45      
15 A' 1431 1383 1.19      
16 A' 1396 1349 0.93      
17 A' 1309 1265 8.07      
18 A' 1235 1193 34.32      
19 A' 1130 1092 7.69      
20 A' 1088 1052 0.40      
21 A' 1059 1023 21.54      
22 A' 1002 968 29.95      
23 A' 972 939 38.08      
24 A' 897 866 10.04      
25 A' 476 460 16.01      
26 A' 357 345 0.14      
27 A' 301 291 7.61      
28 A' 129 125 2.60      
29 A" 3135 3029 185.48      
30 A" 3126 3020 47.10      
31 A" 3096 2992 23.64      
32 A" 3083 2979 49.19      
33 A" 3074 2970 6.11      
34 A" 1529 1477 7.95      
35 A" 1349 1304 1.12      
36 A" 1338 1293 1.18      
37 A" 1315 1271 0.37      
38 A" 1257 1215 0.08      
39 A" 1181 1141 1.30      
40 A" 1010 976 0.93      
41 A" 887 857 0.03      
42 A" 798 771 0.10      
43 A" 742 717 5.53      
44 A" 257 248 171.62      
45 A" 224 216 0.97      
46 A" 135 131 3.96      
47 A" 94 91 6.47      
48 A" 67 65 6.42      

Unscaled Zero Point Vibrational Energy (zpe) 36494.7 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 35264.8 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/CEP-31G
ABC
0.49910 0.03620 0.03489

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.339 -2.881 0.000
H2 2.231 -3.305 0.000
C3 1.463 -1.388 0.000
H4 2.017 -1.053 0.907
H5 2.017 -1.053 -0.907
C6 0.018 -0.819 0.000
H7 -0.514 -1.202 -0.899
H8 -0.514 -1.202 0.899
C9 0.000 0.752 0.000
H10 0.546 1.129 0.898
H11 0.546 1.129 -0.898
C12 -1.455 1.340 0.000
H13 -1.998 0.960 0.896
H14 -1.998 0.960 -0.896
C15 -1.467 2.911 0.000
H16 -0.945 3.305 0.900
H17 -0.945 3.305 -0.900
H18 -2.506 3.306 0.000

Atom - Atom Distances (Å)
  O1 H2 C3 H4 H5 C6 H7 H8 C9 H10 H11 C12 H13 H14 C15 H16 H17 H18
O10.98821.49902.15112.15112.44942.65742.65743.87184.18604.18605.06245.16615.16616.43556.65556.65557.2842
H20.98822.06572.43802.43803.32923.57353.57354.63014.82864.82865.93066.07286.07287.23277.38897.38898.1330
C31.49902.06571.11431.11431.55382.18052.18052.59192.82572.82573.99504.27714.27715.20185.35085.35086.1467
H42.15112.43801.11431.81452.20793.11322.53572.85412.63163.19134.31334.49084.83945.35395.26895.57026.3460
H52.15112.43801.11431.81452.20792.53573.11322.85413.19132.63164.31334.83944.49085.35395.57025.26896.3460
C62.44943.32921.55382.20792.20791.11261.11261.57062.20952.20952.61352.83342.83344.01384.32924.32924.8352
H72.65743.57352.18053.11322.53571.11261.79772.21143.12902.56152.85603.17762.62184.31624.87204.52775.0095
H82.65743.57352.18052.53573.11321.11261.79772.21142.56153.12902.85602.62183.17764.31624.52774.87205.0095
C93.87184.63012.59192.85412.85411.57062.21142.21141.11691.11691.56982.19962.19962.60992.86752.86753.5780
H104.18604.82862.82572.63163.19132.20953.12902.56151.11691.79612.20362.54953.11772.83352.63733.19193.8542
H114.18604.82862.82573.19132.63162.20952.56153.12901.11691.79612.20363.11772.54952.83353.19192.63733.8542
C125.06245.93063.99504.31334.31332.61352.85602.85601.56982.20362.20361.11471.11471.57052.22072.22072.2287
H135.16616.07284.27714.49084.83942.83343.17762.62182.19962.54953.11771.11471.79282.21182.57093.13632.5625
H145.16616.07284.27714.83944.49082.83342.62183.17762.19963.11772.54951.11471.79282.21183.13632.57092.5625
C156.43557.23275.20185.35395.35394.01384.31624.31622.60992.83352.83351.57052.21182.21181.11251.11251.1117
H166.65557.38895.35085.26895.57024.32924.87204.52772.86752.63733.19192.22072.57093.13631.11251.80001.8016
H176.65557.38895.35085.57025.26894.32924.52774.87202.86753.19192.63732.22073.13632.57091.11251.80001.8016
H187.28428.13306.14676.34606.34604.83525.00955.00953.57803.85423.85422.22872.56252.56251.11171.80161.8016

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 109.934 O1 C3 H5 109.934
O1 C3 C6 106.699 H2 O1 C3 110.635
C3 C6 H7 108.590 C3 C6 H8 108.590
C3 C6 C9 112.113 H4 C3 H5 109.022
H4 C3 C6 110.617 H5 C3 C6 110.617
C6 C9 H10 109.443 C6 C9 H11 109.443
C6 C9 C12 112.655 H7 C6 H8 107.776
H7 C6 C9 109.830 H8 C6 C9 109.830
C9 C12 H13 108.859 C9 C12 H14 108.859
C9 C12 C15 112.424 H10 C9 H11 107.048
H10 C9 C12 109.046 H11 C9 C12 109.046
C12 C15 H16 110.561 C12 C15 H17 110.561
C12 C15 H18 111.236 H13 C12 H14 107.052
H13 C12 C15 109.748 H14 C12 C15 109.748
H16 C15 H17 107.997 H16 C15 H18 108.188
H17 C15 H18 108.188
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability