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All results from a given calculation for C4H10O2 (1,4-Butanediol)

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-307.057878
Energy at 298.15K-307.069544
Nuclear repulsion energy243.056991
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 B3PW91/3-21G
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 3527 3390 0.00      
2 Ag 3063 2945 0.00      
3 Ag 2984 2868 0.00      
4 Ag 1584 1522 0.00      
5 Ag 1547 1487 0.00      
6 Ag 1468 1411 0.00      
7 Ag 1392 1338 0.00      
8 Ag 1281 1232 0.00      
9 Ag 1071 1030 0.00      
10 Ag 1063 1022 0.00      
11 Ag 1006 967 0.00      
12 Ag 366 352 0.00      
13 Ag 320 308 0.00      
14 Au 3129 3008 59.70      
15 Au 3012 2895 119.18      
16 Au 1363 1310 5.28      
17 Au 1217 1170 0.72      
18 Au 981 943 2.21      
19 Au 786 755 1.82      
20 Au 299 287 287.71      
21 Au 107 103 21.11      
22 Au 77 74 1.94      
23 Bg 3101 2981 0.00      
24 Bg 3013 2896 0.00      
25 Bg 1353 1300 0.00      
26 Bg 1307 1257 0.00      
27 Bg 1176 1131 0.00      
28 Bg 851 818 0.00      
29 Bg 294 283 0.00      
30 Bg 155 149 0.00      
31 Bu 3527 3390 0.41      
32 Bu 3073 2954 44.14      
33 Bu 2983 2868 94.65      
34 Bu 1586 1524 5.69      
35 Bu 1554 1494 8.16      
36 Bu 1473 1416 7.47      
37 Bu 1338 1286 66.97      
38 Bu 1233 1185 54.57      
39 Bu 1037 997 155.20      
40 Bu 987 949 1.32      
41 Bu 508 488 48.49      
42 Bu 135 130 8.49      

Unscaled Zero Point Vibrational Energy (zpe) 31165.1 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 29955.9 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 B3PW91/3-21G
ABC
0.55424 0.03810 0.03663

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.263 2.786 0.000
O2 -1.263 -2.786 0.000
C3 1.415 1.338 0.000
C4 -1.415 -1.338 0.000
C5 0.000 0.767 0.000
C6 0.000 -0.767 0.000
H7 2.171 3.186 0.000
H8 -2.171 -3.186 0.000
H9 -0.521 1.153 0.885
H10 -0.521 1.153 -0.885
H11 0.521 -1.153 0.885
H12 0.521 -1.153 -0.885
H13 -1.954 -0.975 -0.891
H14 -1.954 -0.975 0.891
H15 1.954 0.975 -0.891
H16 1.954 0.975 0.891

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O16.11851.45554.91772.38213.77090.99176.88942.57612.57614.10494.10495.02895.02892.13322.1332
O26.11854.91771.45553.77092.38216.88940.99174.10494.10492.57612.57612.13322.13325.02895.0289
C31.45554.91773.89481.52572.53631.99665.77312.13662.13662.79082.79084.18224.18221.10291.1029
C44.91771.45553.89482.53631.52575.77311.99662.79082.79082.13662.13661.10291.10294.18224.1822
C52.38213.77091.52572.53631.53353.25064.50991.09741.09742.17722.17722.76482.76482.15732.1573
C63.77092.38212.53631.52571.53354.50993.25062.17722.17721.09741.09742.15732.15732.76482.7648
H70.99176.88941.99665.77313.25064.50997.71103.48793.48794.72584.72585.92645.92642.39382.3938
H86.88940.99175.77311.99664.50993.25067.71104.72584.72583.48793.48792.39382.39385.92645.9264
H92.57614.10492.13662.79081.09742.17723.48794.72581.77052.53033.08823.11992.56523.05142.4813
H102.57614.10492.13662.79081.09742.17723.48794.72581.77053.08822.53032.56523.11992.48133.0514
H114.10492.57612.79082.13662.17721.09744.72583.48792.53033.08821.77053.05142.48133.11992.5652
H124.10492.57612.79082.13662.17721.09744.72583.48793.08822.53031.77052.48133.05142.56523.1199
H135.02892.13324.18221.10292.76482.15735.92642.39383.11992.56523.05142.48131.78144.36714.7165
H145.02892.13324.18221.10292.76482.15735.92642.39382.56523.11992.48133.05141.78144.71654.3671
H152.13325.02891.10294.18222.15732.76482.39385.92643.05142.48133.11992.56524.36714.71651.7814
H162.13325.02891.10294.18222.15732.76482.39385.92642.48133.05142.56523.11994.71654.36711.7814

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 106.052 O1 C3 H15 112.247
O1 C3 H16 112.247 O2 C4 C6 106.052
O2 C4 H13 112.247 O2 C4 H14 112.247
C3 O1 H7 107.839 C3 C5 C6 112.008
C3 C5 H9 107.964 C3 C5 H10 107.964
C4 O2 H8 107.839 C4 C6 C5 112.008
C4 C6 H11 107.964 C4 C6 H12 107.964
C5 C3 H15 109.259 C5 C3 H16 109.259
C5 C6 H11 110.598 C5 C6 H12 110.598
C6 C4 H13 109.259 C6 C4 H14 109.259
C6 C5 H9 110.598 C6 C5 H10 110.598
H9 C5 H10 107.547 H11 C6 H12 107.547
H13 C4 H14 107.724 H15 C3 H16 107.724
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.566      
2 O -0.566      
3 C -0.166      
4 C -0.166      
5 C -0.443      
6 C -0.443      
7 H 0.347      
8 H 0.347      
9 H 0.225      
10 H 0.225      
11 H 0.225      
12 H 0.225      
13 H 0.189      
14 H 0.189      
15 H 0.189      
16 H 0.189      


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 -26.583 8.811 0.000
y 8.811 -42.609 0.000
z 0.000 0.000 -37.867
Traceless
 xyz
x 13.655 8.811 0.000
y 8.811 -10.384 0.000
z 0.000 0.000 -3.271
Polar
3z2-r2-6.543
x2-y216.026
xy8.811
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 286.108
(<r2>)1/2 16.915