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

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-308.786478
Energy at 298.15K-308.798130
Nuclear repulsion energy245.397783
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 mPW1PW91/6-31G*
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 3830 3632 0.00      
2 Ag 3068 2910 0.00      
3 Ag 3006 2851 0.00      
4 Ag 1562 1481 0.00      
5 Ag 1527 1448 0.00      
6 Ag 1492 1414 0.00      
7 Ag 1409 1336 0.00      
8 Ag 1290 1223 0.00      
9 Ag 1125 1067 0.00      
10 Ag 1087 1031 0.00      
11 Ag 1057 1003 0.00      
12 Ag 363 344 0.00      
13 Ag 342 324 0.00      
14 Au 3131 2969 78.90      
15 Au 3036 2879 115.99      
16 Au 1344 1274 2.53      
17 Au 1238 1174 3.44      
18 Au 962 912 2.81      
19 Au 766 727 0.65      
20 Au 289 274 259.67      
21 Au 98 93 18.75      
22 Au 80 76 1.99      
23 Bg 3107 2946 0.00      
24 Bg 3037 2880 0.00      
25 Bg 1338 1268 0.00      
26 Bg 1306 1238 0.00      
27 Bg 1197 1135 0.00      
28 Bg 826 784 0.00      
29 Bg 285 270 0.00      
30 Bg 157 149 0.00      
31 Bu 3830 3632 37.31      
32 Bu 3076 2917 62.69      
33 Bu 3006 2850 114.96      
34 Bu 1565 1484 7.18      
35 Bu 1535 1455 4.24      
36 Bu 1489 1412 16.68      
37 Bu 1332 1263 100.34      
38 Bu 1227 1164 40.02      
39 Bu 1117 1059 199.48      
40 Bu 1019 966 3.98      
41 Bu 526 499 39.59      
42 Bu 138 131 6.38      

Unscaled Zero Point Vibrational Energy (zpe) 31604.9 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 29970.9 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 mPW1PW91/6-31G*
ABC
0.57660 0.03847 0.03706

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.283 2.755 0.000
O2 -1.283 -2.755 0.000
C3 1.399 1.346 0.000
C4 -1.399 -1.346 0.000
C5 0.000 0.762 0.000
C6 0.000 -0.762 0.000
H7 2.173 3.127 0.000
H8 -2.173 -3.127 0.000
H9 -0.532 1.145 0.879
H10 -0.532 1.145 -0.879
H11 0.532 -1.145 0.879
H12 0.532 -1.145 -0.879
H13 -1.948 -0.990 -0.886
H14 -1.948 -0.990 0.886
H15 1.948 0.990 -0.886
H16 1.948 0.990 0.886

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O16.07881.41394.90062.37043.74420.96446.82232.58052.58054.06844.06845.02555.02552.08392.0839
O26.07884.90061.41393.74422.37046.82230.96444.06844.06842.58052.58052.08392.08395.02555.0255
C31.41394.90063.88301.51612.53021.94165.72432.13112.13112.78072.78074.17714.17711.10161.1016
C44.90061.41393.88302.53021.51615.72431.94162.78072.78072.13112.13111.10161.10164.17714.1771
C52.37043.74421.51612.53021.52443.21154.45491.09661.09662.16672.16672.76622.76622.15242.1524
C63.74422.37042.53021.51611.52444.45493.21152.16672.16671.09661.09662.15242.15242.76622.7662
H70.96446.82231.94165.72433.21154.45497.61553.46643.46644.66024.66025.89245.89242.32392.3239
H86.82230.96445.72431.94164.45493.21157.61554.66024.66023.46643.46642.32392.32395.89245.8924
H92.58054.06842.13112.78071.09662.16673.46644.66021.75822.52573.07743.11182.56263.04812.4849
H102.58054.06842.13112.78071.09662.16673.46644.66021.75823.07742.52572.56263.11182.48493.0481
H114.06842.58052.78072.13112.16671.09664.66023.46642.52573.07741.75823.04812.48493.11182.5626
H124.06842.58052.78072.13112.16671.09664.66023.46643.07742.52571.75822.48493.04812.56263.1118
H135.02552.08394.17711.10162.76622.15245.89242.32393.11182.56263.04812.48491.77254.37084.7165
H145.02552.08394.17711.10162.76622.15245.89242.32392.56263.11182.48493.04811.77254.71654.3708
H152.08395.02551.10164.17712.15242.76622.32395.89243.04812.48493.11182.56264.37084.71651.7725
H162.08395.02551.10164.17712.15242.76622.32395.89242.48493.04812.56263.11184.71654.37081.7725

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 107.951 O1 C3 H15 111.269
O1 C3 H16 111.269 O2 C4 C6 107.951
O2 C4 H13 111.269 O2 C4 H14 111.269
C3 O1 H7 107.953 C3 C5 C6 112.650
C3 C5 H9 108.240 C3 C5 H10 108.240
C4 O2 H8 107.953 C4 C6 C5 112.650
C4 C6 H11 108.240 C4 C6 H12 108.240
C5 C3 H15 109.607 C5 C3 H16 109.607
C5 C6 H11 110.454 C5 C6 H12 110.454
C6 C4 H13 109.607 C6 C4 H14 109.607
C6 C5 H9 110.454 C6 C5 H10 110.454
H9 C5 H10 106.579 H11 C6 H12 106.579
H13 C4 H14 107.130 H15 C3 H16 107.130
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.637      
2 O -0.637      
3 C -0.073      
4 C -0.073      
5 C -0.338      
6 C -0.338      
7 H 0.408      
8 H 0.408      
9 H 0.176      
10 H 0.176      
11 H 0.176      
12 H 0.176      
13 H 0.144      
14 H 0.144      
15 H 0.144      
16 H 0.144      


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 -27.097 8.187 0.000
y 8.187 -42.545 0.000
z 0.000 0.000 -37.867
Traceless
 xyz
x 13.109 8.187 0.000
y 8.187 -10.063 0.000
z 0.000 0.000 -3.046
Polar
3z2-r2-6.092
x2-y215.448
xy8.187
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> 283.108
(<r2>)1/2 16.826