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 (1,4-Butanediol)

using model chemistry: HF/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at HF/6-31G(2df,p)
 hartrees
Energy at 0K-307.036503
Energy at 298.15K-307.048459
Nuclear repulsion energy246.342838
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/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 4191 3795 0.00      
2 Ag 3168 2868 0.00      
3 Ag 3127 2832 0.00      
4 Ag 1653 1497 0.00      
5 Ag 1616 1464 0.00      
6 Ag 1601 1449 0.00      
7 Ag 1512 1369 0.00      
8 Ag 1368 1239 0.00      
9 Ag 1190 1078 0.00      
10 Ag 1120 1014 0.00      
11 Ag 1112 1007 0.00      
12 Ag 384 348 0.00      
13 Ag 362 328 0.00      
14 Au 3225 2920 128.39      
15 Au 3151 2853 96.64      
16 Au 1436 1300 0.70      
17 Au 1326 1201 7.25      
18 Au 1016 920 2.91      
19 Au 800 724 0.11      
20 Au 287 260 245.85      
21 Au 106 96 19.08      
22 Au 90 82 3.26      
23 Bg 3197 2895 0.00      
24 Bg 3154 2856 0.00      
25 Bg 1424 1289 0.00      
26 Bg 1398 1266 0.00      
27 Bg 1284 1162 0.00      
28 Bg 870 788 0.00      
29 Bg 283 256 0.00      
30 Bg 172 155 0.00      
31 Bu 4191 3795 101.96      
32 Bu 3173 2873 88.44      
33 Bu 3127 2831 104.75      
34 Bu 1656 1499 6.43      
35 Bu 1625 1472 5.31      
36 Bu 1597 1446 18.31      
37 Bu 1422 1287 101.88      
38 Bu 1300 1177 82.87      
39 Bu 1190 1078 203.45      
40 Bu 1051 951 2.03      
41 Bu 559 506 38.23      
42 Bu 150 136 6.21      

Unscaled Zero Point Vibrational Energy (zpe) 33329.9 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 30180.2 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/6-31G(2df,p)
ABC
0.58612 0.03851 0.03712

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.296 2.745 0.000
O2 -1.296 -2.745 0.000
C3 1.401 1.348 0.000
C4 -1.401 -1.348 0.000
C5 0.000 0.764 0.000
C6 0.000 -0.764 0.000
H7 2.154 3.127 0.000
H8 -2.154 -3.127 0.000
H9 -0.527 1.142 0.873
H10 -0.527 1.142 -0.873
H11 0.527 -1.142 0.873
H12 0.527 -1.142 -0.873
H13 -1.947 -1.001 -0.878
H14 -1.947 -1.001 0.878
H15 1.947 1.001 -0.878
H16 1.947 1.001 0.878

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O16.07041.40074.90152.36723.74010.93946.81022.57972.57974.05684.05685.03175.03172.05762.0576
O26.07044.90151.40073.74012.36726.81020.93944.05684.05682.57972.57972.05762.05765.03175.0317
C31.40074.90153.88881.51832.53431.93185.71542.12702.12702.77932.77934.18324.18321.09041.0904
C44.90151.40073.88882.53431.51835.71541.93182.77932.77932.12702.12701.09041.09044.18324.1832
C52.36723.74011.51832.53431.52753.19764.44721.08751.08752.16142.16142.77062.77062.14882.1488
C63.74012.36722.53431.51831.52754.44723.19762.16142.16141.08751.08752.14882.14882.77062.7706
H70.93946.81021.93185.71543.19764.44727.59423.44853.44854.65104.65105.88475.88472.30932.3093
H86.81020.93945.71541.93184.44723.19767.59424.65104.65103.44853.44852.30932.30935.88475.8847
H92.57974.05682.12702.77931.08752.16143.44854.65101.74522.51593.06193.11032.57063.03422.4780
H102.57974.05682.12702.77931.08752.16143.44854.65101.74523.06192.51592.57063.11032.47803.0342
H114.05682.57972.77932.12702.16141.08754.65103.44852.51593.06191.74523.03422.47803.11032.5706
H124.05682.57972.77932.12702.16141.08754.65103.44853.06192.51591.74522.47803.03422.57063.1103
H135.03172.05764.18321.09042.77062.14885.88472.30933.11032.57063.03422.47801.75704.37804.7174
H145.03172.05764.18321.09042.77062.14885.88472.30932.57063.11032.47803.03421.75704.71744.3780
H152.05765.03171.09044.18322.14882.77062.30935.88473.03422.47803.11032.57064.37804.71741.7570
H162.05765.03171.09044.18322.14882.77062.30935.88472.47803.03422.57063.11034.71744.37801.7570

picture of 1,4-Butanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C3 C5 108.315 O1 C3 H15 110.759
O1 C3 H16 110.759 O2 C4 C6 108.315
O2 C4 H13 110.759 O2 C4 H14 110.759
C3 O1 H7 109.709 C3 C5 C6 112.627
C3 C5 H9 108.290 C3 C5 H10 108.290
C4 O2 H8 109.709 C4 C6 C5 112.627
C4 C6 H11 108.290 C4 C6 H12 108.290
C5 C3 H15 109.829 C5 C3 H16 109.829
C5 C6 H11 110.356 C5 C6 H12 110.356
C6 C4 H13 109.829 C6 C4 H14 109.829
C6 C5 H9 110.356 C6 C5 H10 110.356
H9 C5 H10 106.713 H11 C6 H12 106.713
H13 C4 H14 107.349 H15 C3 H16 107.349
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.573      
2 O -0.573      
3 C 0.021      
4 C 0.021      
5 C -0.247      
6 C -0.247      
7 H 0.327      
8 H 0.327      
9 H 0.131      
10 H 0.131      
11 H 0.131      
12 H 0.131      
13 H 0.105      
14 H 0.105      
15 H 0.105      
16 H 0.105      


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


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.676 7.630 0.000
y 7.630 -43.324 0.000
z 0.000 0.000 -37.914
Traceless
 xyz
x 12.943 7.630 0.000
y 7.630 -10.528 0.000
z 0.000 0.000 -2.414
Polar
3z2-r2-4.828
x2-y215.647
xy7.630
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.548 0.962 0.000
y 0.962 8.177 0.000
z 0.000 0.000 6.474


<r2> (average value of r2) Å2
<r2> 282.906
(<r2>)1/2 16.820