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: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-272.131175
Energy at 298.15K-272.144465
HF Energy-271.208389
Nuclear repulsion energy244.675122
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 MP2/6-31+G**
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' 3876 3646 30.35      
2 A' 3207 3016 34.18      
3 A' 3121 2935 42.35      
4 A' 3111 2926 35.31      
5 A' 3107 2922 28.45      
6 A' 3089 2905 29.01      
7 A' 3076 2894 38.42      
8 A' 1573 1479 2.89      
9 A' 1553 1461 7.01      
10 A' 1544 1452 0.56      
11 A' 1534 1443 0.93      
12 A' 1532 1441 0.02      
13 A' 1481 1393 14.82      
14 A' 1455 1368 2.65      
15 A' 1440 1354 1.10      
16 A' 1383 1301 3.25      
17 A' 1306 1229 15.09      
18 A' 1249 1175 28.81      
19 A' 1149 1081 2.69      
20 A' 1112 1046 0.14      
21 A' 1091 1026 60.82      
22 A' 1062 999 46.62      
23 A' 1033 971 6.05      
24 A' 926 871 4.00      
25 A' 503 473 13.18      
26 A' 371 349 0.11      
27 A' 320 301 5.50      
28 A' 136 128 1.95      
29 A" 3204 3013 52.38      
30 A" 3185 2996 50.82      
31 A" 3161 2973 14.85      
32 A" 3135 2949 5.98      
33 A" 3127 2942 32.00      
34 A" 1544 1452 7.91      
35 A" 1357 1276 1.36      
36 A" 1343 1263 1.16      
37 A" 1325 1246 0.05      
38 A" 1265 1189 0.02      
39 A" 1215 1142 1.23      
40 A" 1006 946 0.69      
41 A" 883 831 0.03      
42 A" 792 745 0.32      
43 A" 750 705 1.49      
44 A" 253 238 0.02      
45 A" 225 211 120.26      
46 A" 141 133 13.27      
47 A" 92 87 2.10      
48 A" 72 68 7.43      

Unscaled Zero Point Vibrational Energy (zpe) 37204.2 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 34994.3 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 MP2/6-31+G**
ABC
0.52812 0.03820 0.03684

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.297 -2.803 0.000
H2 2.185 -3.182 0.000
C3 1.410 -1.373 0.000
H4 1.955 -1.032 0.887
H5 1.955 -1.032 -0.887
C6 0.008 -0.800 0.000
H7 -0.520 -1.177 -0.879
H8 -0.520 -1.177 0.879
C9 0.000 0.726 0.000
H10 0.541 1.095 0.878
H11 0.541 1.095 -0.878
C12 -1.408 1.315 0.000
H13 -1.948 0.946 0.877
H14 -1.948 0.946 -0.877
C15 -1.410 2.840 0.000
H16 -0.897 3.228 0.882
H17 -0.897 3.228 -0.882
H18 -2.425 3.238 0.000

Atom - Atom Distances (Å)
  O1 H2 C3 H4 H5 C6 H7 H8 C9 H10 H11 C12 H13 H14 C15 H16 H17 H18
O10.96571.43432.08732.08732.38132.59162.59163.75974.06674.06674.92695.03555.03556.25896.47826.47827.0955
H20.96571.96742.33712.33713.22633.47963.47964.47704.66534.66535.75595.90715.90717.01357.16697.16697.9035
C31.43431.96741.09551.09551.51442.12992.12992.52892.76032.76033.89484.17484.17485.07025.22255.22255.9977
H42.08732.33711.09551.77472.15133.04372.47852.77442.55393.10464.19554.37564.71775.20585.12645.42316.1805
H52.08732.33711.09551.77472.15132.47853.04372.77443.10462.55394.19554.71774.37565.20585.42315.12646.1805
C62.38133.22631.51442.15132.15131.09271.09271.52632.15582.15582.54582.76552.76553.90734.22224.22224.7149
H72.59163.47962.12993.04372.47851.09271.75872.15983.06212.50772.78803.10372.55924.20794.75934.42144.8884
H82.59163.47962.12992.47853.04371.09271.75872.15982.50773.06212.78802.55923.10374.20794.42144.75934.8884
C93.75974.47702.52892.77442.77441.52632.15982.15981.09541.09541.52642.14782.14782.54142.80072.80073.4916
H104.06674.66532.76032.55393.10462.15583.06212.50771.09541.75592.14902.49393.04922.76082.57263.11693.7629
H114.06674.66532.76033.10462.55392.15582.50773.06211.09541.75592.14903.04922.49392.76083.11692.57263.7629
C124.92695.75593.89484.19554.19552.54582.78802.78801.52642.14902.14901.09371.09371.52562.16772.16772.1754
H135.03555.90714.17484.37564.71772.76553.10372.55922.14782.49393.04921.09371.75312.15562.51243.06662.4996
H145.03555.90714.17484.71774.37562.76552.55923.10372.14783.04922.49391.09371.75312.15563.06662.51242.4996
C156.25897.01355.07025.20585.20583.90734.20794.20792.54142.76082.76081.52562.15562.15561.09111.09111.0903
H166.47827.16695.22255.12645.42314.22224.75934.42142.80072.57263.11692.16772.51243.06661.09111.76351.7639
H176.47827.16695.22255.42315.12644.22224.42144.75932.80073.11692.57262.16773.06662.51241.09111.76351.7639
H187.09557.90355.99776.18056.18054.71494.88844.88843.49163.76293.76292.17542.49962.49961.09031.76391.7639

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 110.482 O1 C3 H5 110.482
O1 C3 C6 107.690 H2 O1 C3 108.547
C3 C6 H7 108.479 C3 C6 H8 108.479
C3 C6 C9 112.541 H4 C3 H5 108.191
H4 C3 C6 110.001 H5 C3 C6 110.001
C6 C9 H10 109.536 C6 C9 H11 109.536
C6 C9 C12 113.013 H7 C6 H8 107.168
H7 C6 C9 110.005 H8 C6 C9 110.005
C9 C12 H13 109.004 C9 C12 H14 109.004
C9 C12 C15 112.756 H10 C9 H11 106.548
H10 C9 C12 108.999 H11 C9 C12 108.999
C12 C15 H16 110.785 C12 C15 H17 110.785
C12 C15 H18 111.445 H13 C12 H14 106.541
H13 C12 C15 109.670 H14 C12 C15 109.670
H16 C15 H17 107.836 H16 C15 H18 107.924
H17 C15 H18 107.924
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.557     -0.744
2 H 0.343     0.436
3 C 0.034     0.304
4 H 0.115     -0.028
5 H 0.115     -0.028
6 C -0.363     0.097
7 H 0.148     0.011
8 H 0.148     0.011
9 C -0.241     -0.203
10 H 0.130     0.028
11 H 0.130     0.028
12 C -0.169     0.316
13 H 0.134     -0.069
14 H 0.134     -0.069
15 C -0.506     -0.227
16 H 0.134     0.045
17 H 0.134     0.045
18 H 0.139     0.043


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.366 1.042 0.000 1.718
CHELPG        
AIM        
ESP 1.372 1.049 0.000 1.727


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.594 -4.123 0.000
y -4.123 -45.866 0.000
z 0.000 0.000 -40.715
Traceless
 xyz
x 7.696 -4.123 0.000
y -4.123 -7.712 0.000
z 0.000 0.000 0.016
Polar
3z2-r20.031
x2-y210.272
xy-4.123
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.267 -0.908 0.000
y -0.908 10.414 0.000
z 0.000 0.000 8.134


<r2> (average value of r2) Å2
<r2> 301.210
(<r2>)1/2 17.355