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: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-308.714130
Energy at 298.15K-308.725743
Nuclear repulsion energy245.769773
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 B1B95/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3824 3630 0.00      
2 Ag 3071 2915 0.00      
3 Ag 3005 2853 0.00      
4 Ag 1558 1479 0.00      
5 Ag 1521 1444 0.00      
6 Ag 1488 1413 0.00      
7 Ag 1401 1330 0.00      
8 Ag 1285 1220 0.00      
9 Ag 1126 1069 0.00      
10 Ag 1081 1026 0.00      
11 Ag 1057 1003 0.00      
12 Ag 358 340 0.00      
13 Ag 337 319 0.00      
14 Au 3134 2975 76.14      
15 Au 3036 2882 118.01      
16 Au 1336 1269 2.62      
17 Au 1232 1170 3.74      
18 Au 952 904 2.82      
19 Au 762 723 0.48      
20 Au 290 275 258.94      
21 Au 96 91 18.67      
22 Au 80 76 1.85      
23 Bg 3111 2953 0.00      
24 Bg 3037 2883 0.00      
25 Bg 1327 1260 0.00      
26 Bg 1301 1235 0.00      
27 Bg 1193 1132 0.00      
28 Bg 820 778 0.00      
29 Bg 286 271 0.00      
30 Bg 156 148 0.00      
31 Bu 3824 3630 36.86      
32 Bu 3079 2923 60.50      
33 Bu 3005 2853 115.97      
34 Bu 1561 1482 7.56      
35 Bu 1530 1453 4.02      
36 Bu 1486 1410 17.82      
37 Bu 1322 1255 108.34      
38 Bu 1219 1158 34.43      
39 Bu 1118 1061 199.91      
40 Bu 1018 967 4.25      
41 Bu 521 495 38.86      
42 Bu 134 127 6.23      

Unscaled Zero Point Vibrational Energy (zpe) 31538.1 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 29939.1 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 B1B95/6-31G*
ABC
0.57793 0.03861 0.03719

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.503 2.636 0.000
O2 -1.503 -2.636 0.000
C3 1.503 1.224 0.000
C4 -1.503 -1.224 0.000
C5 0.062 0.758 0.000
C6 -0.062 -0.758 0.000
H7 2.419 2.934 0.000
H8 -2.419 -2.934 0.000
H9 -0.436 1.183 0.878
H10 -0.436 1.183 -0.878
H11 0.436 -1.183 0.878
H12 0.436 -1.183 -0.878
H13 -2.019 -0.824 -0.885
H14 -2.019 -0.824 0.885
H15 2.019 0.824 -0.885
H16 2.019 0.824 0.885

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O16.06821.41194.89182.36653.73740.96406.81212.57632.57634.06154.06155.01575.01572.08192.0819
O26.06824.89181.41193.73742.36656.81210.96404.06154.06152.57632.57632.08192.08195.01575.0157
C31.41194.89183.87601.51392.52541.94025.71582.12822.12822.77572.77574.16904.16901.10041.1004
C44.89181.41193.87602.52541.51395.71581.94022.77572.77572.12822.12821.10041.10044.16904.1690
C52.36653.73741.51392.52541.52153.20784.44861.09521.09522.16332.16332.76032.76032.14902.1490
C63.73742.36652.52541.51391.52154.44863.20782.16332.16331.09521.09522.14902.14902.76032.7603
H70.96406.81211.94025.71583.20784.44867.60563.46213.46214.65384.65385.88275.88272.32302.3230
H86.81210.96405.71581.94024.44863.20787.60564.65384.65383.46213.46212.32302.32305.88275.8827
H92.57634.06152.12822.77571.09522.16333.46214.65381.75622.52183.07313.10592.55673.04392.4809
H102.57634.06152.12822.77571.09522.16333.46214.65381.75623.07312.52182.55673.10592.48093.0439
H114.06152.57632.77572.12822.16331.09524.65383.46212.52183.07311.75623.04392.48093.10592.5567
H124.06152.57632.77572.12822.16331.09524.65383.46213.07312.52181.75622.48093.04392.55673.1059
H135.01572.08194.16901.10042.76032.14905.88272.32303.10592.55673.04392.48091.77084.36164.7074
H145.01572.08194.16901.10042.76032.14905.88272.32302.55673.10592.48093.04391.77084.70744.3616
H152.08195.01571.10044.16902.14902.76032.32305.88273.04392.48093.10592.55674.36164.70741.7708
H162.08195.01571.10044.16902.14902.76032.32305.88272.48093.04392.55673.10594.70744.36161.7708

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 107.920 O1 C3 H15 111.323
O1 C3 H16 111.323 O2 C4 C6 107.920
O2 C4 H13 111.323 O2 C4 H14 111.323
C3 O1 H7 108.007 C3 C5 C6 112.607
C3 C5 H9 108.239 C3 C5 H10 108.239
C4 O2 H8 108.007 C4 C6 C5 112.607
C4 C6 H11 108.239 C4 C6 H12 108.239
C5 C3 H15 109.561 C5 C3 H16 109.561
C5 C6 H11 110.469 C5 C6 H12 110.469
C6 C4 H13 109.561 C6 C4 H14 109.561
C6 C5 H9 110.469 C6 C5 H10 110.469
H9 C5 H10 106.599 H11 C6 H12 106.599
H13 C4 H14 107.142 H15 C3 H16 107.142
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.633      
2 O -0.633      
3 C -0.057      
4 C -0.057      
5 C -0.320      
6 C -0.320      
7 H 0.404      
8 H 0.404      
9 H 0.168      
10 H 0.168      
11 H 0.168      
12 H 0.168      
13 H 0.135      
14 H 0.135      
15 H 0.135      
16 H 0.135      


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 -25.924 6.839 0.000
y 6.839 -43.661 0.000
z 0.000 0.000 -37.876
Traceless
 xyz
x 14.844 6.839 0.000
y 6.839 -11.761 0.000
z 0.000 0.000 -3.083
Polar
3z2-r2-6.166
x2-y217.737
xy6.839
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.880 1.101 0.000
y 1.101 8.178 0.000
z 0.000 0.000 6.370


<r2> (average value of r2) Å2
<r2> 282.207
(<r2>)1/2 16.799