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 C4H10O2 (1,3-Butanediol)

using model chemistry: HF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-305.299036
Energy at 298.15K-305.311077
Nuclear repulsion energy255.961301
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 HF/3-21G*
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 3872 3495 8.33      
2 A 3868 3491 8.54      
3 A 3291 2971 67.92      
4 A 3278 2958 6.41      
5 A 3266 2948 10.63      
6 A 3252 2936 33.60      
7 A 3235 2920 10.49      
8 A 3195 2884 25.83      
9 A 3180 2870 101.50      
10 A 3173 2864 4.61      
11 A 1711 1544 3.17      
12 A 1670 1507 4.85      
13 A 1664 1502 6.45      
14 A 1647 1487 2.86      
15 A 1587 1432 3.62      
16 A 1572 1419 8.07      
17 A 1552 1401 21.91      
18 A 1515 1368 9.92      
19 A 1470 1327 10.70      
20 A 1458 1316 3.25      
21 A 1406 1269 32.87      
22 A 1347 1216 91.18      
23 A 1317 1189 13.60      
24 A 1255 1133 16.95      
25 A 1221 1102 52.38      
26 A 1158 1045 6.05      
27 A 1115 1007 84.94      
28 A 1078 973 5.89      
29 A 1074 970 22.02      
30 A 1016 917 10.98      
31 A 911 822 9.51      
32 A 883 797 14.76      
33 A 524 473 25.85      
34 A 494 446 2.19      
35 A 414 374 14.70      
36 A 354 320 3.10      
37 A 326 295 185.51      
38 A 285 258 144.46      
39 A 259 234 0.52      
40 A 196 177 6.86      
41 A 131 118 7.26      
42 A 104 94 10.09      

Unscaled Zero Point Vibrational Energy (zpe) 33161.3 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 29931.4 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 HF/3-21G*
ABC
0.25054 0.05954 0.05129

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.101 1.326 -0.264
H2 1.913 1.785 -0.010
O3 -2.659 -0.356 -0.173
H4 -3.435 0.215 -0.097
C5 2.224 -0.842 -0.077
H6 2.243 -0.909 -1.157
H7 3.159 -0.404 0.259
H8 2.149 -1.839 0.339
C9 1.033 0.017 0.355
H10 1.031 0.121 1.437
C11 -0.297 -0.574 -0.096
H12 -0.459 -1.532 0.384
H13 -0.276 -0.727 -1.167
C14 -1.465 0.347 0.236
H15 -1.485 0.557 1.301
H16 -1.343 1.279 -0.297

Atom - Atom Distances (Å)
  O1 H2 O3 H4 C5 H6 H7 H8 C9 H10 C11 H12 H13 C14 H15 H16
O10.96624.12074.67312.44822.66362.73903.38811.44952.08552.36543.31982.63202.79163.11932.4449
H20.96625.05125.57402.64542.94582.53303.64822.00772.37433.23374.09633.52683.67923.84353.3074
O34.12075.05120.96574.90825.03085.83495.05773.74874.05482.37362.55622.60901.44512.09482.1024
H44.67315.57400.96575.75625.88436.63255.96504.49484.72293.23533.48353.46572.00212.42372.3553
C52.44822.64544.90825.75621.08291.08591.08341.53052.15402.53502.80812.72963.88794.19614.1551
H62.66362.94585.03085.88431.08291.76021.76492.14713.04282.77333.17252.52564.15524.70004.2877
H72.73902.53305.83496.63251.08591.76021.75702.16992.48853.47873.79213.73344.68484.85574.8384
H83.38813.64825.05775.96501.08341.76491.75702.16602.50922.78762.62613.06354.22454.45724.7240
C91.44952.00773.74874.49481.53052.14712.16992.16601.08641.52422.15102.14142.52232.74322.7678
H102.08552.37434.05484.72292.15403.04282.48852.50921.08642.14442.46243.03482.77932.55703.1593
C112.36543.23372.37363.23532.53502.77333.47872.78761.52422.14441.08291.08231.52392.15482.1372
H123.31984.09632.55623.48352.80813.17253.79212.62612.15102.46241.08291.75672.13612.50133.0235
H132.63203.52682.60903.46572.72962.52563.73343.06352.14143.03481.08231.75672.12963.03392.4329
C142.79163.67921.44512.00213.88794.15524.68484.22452.52232.77931.52392.13612.12961.08661.0799
H153.11933.84352.09482.42374.19614.70004.85574.45722.74322.55702.15482.50133.03391.08661.7594
H162.44493.30742.10242.35534.15514.28774.83844.72402.76783.15932.13723.02352.43291.07991.7594

picture of 1,3-Butanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C9 C5 110.455 O1 C9 H10 109.822
O1 C9 C11 105.372 H2 O1 C9 110.838
O3 C14 C11 106.129 O3 C14 H15 110.879
O3 C14 H16 111.928 H4 O3 C14 110.723
C5 C9 H10 109.624 C5 C9 C11 112.175
H6 C5 H7 108.510 H6 C5 H8 109.122
H6 C5 C9 109.287 H7 C5 H8 108.189
H7 C5 C9 110.920 H8 C5 C9 110.762
C9 C11 H12 110.036 C9 C11 H13 109.317
C9 C11 C14 111.684 H10 C9 C11 109.305
C11 C14 H15 110.136 C11 C14 H16 109.137
H12 C11 H13 108.457 H12 C11 C14 108.872
H13 C11 C14 108.404 H15 C14 H16 108.604
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.684 -0.766    
2 H 0.374 0.441    
3 O -0.688 -0.765    
4 H 0.372 0.436    
5 C -0.600 -0.412    
6 H 0.223 0.117    
7 H 0.192 0.099    
8 H 0.205 0.089    
9 C 0.055 0.480    
10 H 0.194 -0.034    
11 C -0.426 -0.201    
12 H 0.221 0.059    
13 H 0.237 0.094    
14 C -0.067 0.436    
15 H 0.173 -0.055    
16 H 0.220 -0.018    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.547 1.117 1.609 2.497
CHELPG 1.554 1.108 1.588 2.483
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.846 -3.456 -0.009
y -3.456 -38.616 1.018
z -0.009 1.018 -38.675
Traceless
 xyz
x 6.799 -3.456 -0.009
y -3.456 -3.356 1.018
z -0.009 1.018 -3.443
Polar
3z2-r2-6.887
x2-y26.770
xy-3.456
xz-0.009
yz1.018


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.801 0.034 0.129
y 0.034 6.387 0.004
z 0.129 0.004 5.710


<r2> (average value of r2) Å2
<r2> 222.261
(<r2>)1/2 14.908