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: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-307.165543
Energy at 298.15K-307.177193
Nuclear repulsion energy242.463052
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 B3LYP/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 Ag 3471 3349 0.00      
2 Ag 3056 2949 0.00      
3 Ag 2980 2876 0.00      
4 Ag 1591 1535 0.00      
5 Ag 1555 1501 0.00      
6 Ag 1469 1418 0.00      
7 Ag 1395 1346 0.00      
8 Ag 1279 1234 0.00      
9 Ag 1059 1022 0.00      
10 Ag 1049 1012 0.00      
11 Ag 991 957 0.00      
12 Ag 365 352 0.00      
13 Ag 319 308 0.00      
14 Au 3116 3007 68.12      
15 Au 3003 2898 119.24      
16 Au 1364 1316 4.38      
17 Au 1215 1173 0.85      
18 Au 984 949 2.41      
19 Au 788 760 1.21      
20 Au 299 288 271.00      
21 Au 109 105 20.67      
22 Au 76 73 1.82      
23 Bg 3088 2980 0.00      
24 Bg 3005 2899 0.00      
25 Bg 1355 1308 0.00      
26 Bg 1308 1262 0.00      
27 Bg 1177 1136 0.00      
28 Bg 854 824 0.00      
29 Bg 294 284 0.00      
30 Bg 153 147 0.00      
31 Bu 3470 3349 2.92      
32 Bu 3065 2958 47.21      
33 Bu 2980 2875 93.27      
34 Bu 1594 1538 5.48      
35 Bu 1564 1509 6.78      
36 Bu 1474 1423 10.76      
37 Bu 1343 1296 53.13      
38 Bu 1233 1189 63.96      
39 Bu 1021 986 148.13      
40 Bu 974 940 1.25      
41 Bu 507 489 46.58      
42 Bu 135 131 7.98      

Unscaled Zero Point Vibrational Energy (zpe) 31062.9 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 29972.6 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 B3LYP/3-21G
ABC
0.55175 0.03788 0.03642

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.256 2.799 0.000
O2 -1.256 -2.799 0.000
C3 1.416 1.347 0.000
C4 -1.416 -1.347 0.000
C5 0.000 0.769 0.000
C6 0.000 -0.769 0.000
H7 2.164 3.206 0.000
H8 -2.164 -3.206 0.000
H9 -0.521 1.154 0.884
H10 -0.521 1.154 -0.884
H11 0.521 -1.154 0.884
H12 0.521 -1.154 -0.884
H13 -1.958 -0.988 -0.890
H14 -1.958 -0.988 0.890
H15 1.958 0.988 -0.890
H16 1.958 0.988 0.890

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O16.13501.46074.93222.38663.78240.99516.90972.57802.57804.11634.11635.04585.04582.13612.1361
O26.13504.93221.46073.78242.38666.90970.99514.11634.11632.57802.57802.13612.13615.04585.0458
C31.46074.93223.90921.52982.54642.00335.79162.13892.13892.79942.79944.19894.19891.10171.1017
C44.93221.46073.90922.54641.52985.79162.00332.79942.79942.13892.13891.10171.10174.19894.1989
C52.38663.78241.52982.54641.53833.25854.52551.09641.09642.17992.17992.77742.77742.16182.1618
C63.78242.38662.54641.52981.53834.52553.25852.17992.17991.09641.09642.16182.16182.77742.7774
H70.99516.90972.00335.79163.25854.52557.73503.49323.49324.74174.74175.94715.94712.39812.3981
H86.90970.99515.79162.00334.52553.25857.73504.74174.74173.49323.49322.39812.39815.94715.9471
H92.57804.11632.13892.79941.09642.17993.49324.74171.76882.53243.08903.13052.57913.05332.4848
H102.57804.11632.13892.79941.09642.17993.49324.74171.76883.08902.53242.57913.13052.48483.0533
H114.11632.57802.79942.13892.17991.09644.74173.49322.53243.08901.76883.05332.48483.13052.5791
H124.11632.57802.79942.13892.17991.09644.74173.49323.08902.53241.76882.48483.05332.57913.1305
H135.04582.13614.19891.10172.77742.16185.94712.39813.13052.57913.05332.48481.78014.38624.7337
H145.04582.13614.19891.10172.77742.16185.94712.39812.57913.13052.48483.05331.78014.73374.3862
H152.13615.04581.10174.19892.16182.77742.39815.94713.05332.48483.13052.57914.38624.73371.7801
H162.13615.04581.10174.19892.16182.77742.39815.94712.48483.05332.57913.13054.73374.38621.7801

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 105.866 O1 C3 H15 112.186
O1 C3 H16 112.186 O2 C4 C6 105.866
O2 C4 H13 112.186 O2 C4 H14 112.186
C3 O1 H7 107.812 C3 C5 C6 112.189
C3 C5 H9 107.934 C3 C5 H10 107.934
C4 O2 H8 107.812 C4 C6 C5 112.189
C4 C6 H11 107.934 C4 C6 H12 107.934
C5 C3 H15 109.393 C5 C3 H16 109.393
C5 C6 H11 110.540 C5 C6 H12 110.540
C6 C4 H13 109.393 C6 C4 H14 109.393
C6 C5 H9 110.540 C6 C5 H10 110.540
H9 C5 H10 107.536 H11 C6 H12 107.536
H13 C4 H14 107.772 H15 C3 H16 107.772
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.553     -0.622
2 O -0.553     -0.625
3 C -0.127     0.229
4 C -0.127     0.258
5 C -0.391     -0.129
6 C -0.391     -0.160
7 H 0.332     0.394
8 H 0.332     0.393
9 H 0.201     0.070
10 H 0.201     0.070
11 H 0.201     0.075
12 H 0.201     0.075
13 H 0.168     -0.011
14 H 0.168     -0.011
15 H 0.168     -0.004
16 H 0.168     -0.004


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 -0.007 0.001 0.000 0.007


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.068 8.676 0.000
y 8.676 -42.704 0.000
z 0.000 0.000 -38.052
Traceless
 xyz
x 13.310 8.676 0.000
y 8.676 -10.144 0.000
z 0.000 0.000 -3.166
Polar
3z2-r2-6.332
x2-y215.636
xy8.676
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.356 1.262 0.000
y 1.262 8.263 0.000
z 0.000 0.000 5.803


<r2> (average value of r2) Å2
<r2> 287.809
(<r2>)1/2 16.965