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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-308.808162
Energy at 298.15K-308.819801
Nuclear repulsion energy245.499868
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 3902 3713 0.00      
2 Ag 3064 2916 0.00      
3 Ag 2997 2851 0.00      
4 Ag 1546 1471 0.00      
5 Ag 1511 1437 0.00      
6 Ag 1480 1408 0.00      
7 Ag 1398 1330 0.00      
8 Ag 1278 1216 0.00      
9 Ag 1125 1070 0.00      
10 Ag 1083 1030 0.00      
11 Ag 1053 1002 0.00      
12 Ag 362 345 0.00      
13 Ag 341 325 0.00      
14 Au 3129 2977 73.11      
15 Au 3029 2882 113.71      
16 Au 1335 1270 2.40      
17 Au 1232 1172 3.39      
18 Au 956 909 2.67      
19 Au 764 727 0.76      
20 Au 280 266 252.35      
21 Au 99 94 18.31      
22 Au 81 77 1.75      
23 Bg 3106 2955 0.00      
24 Bg 3030 2883 0.00      
25 Bg 1327 1263 0.00      
26 Bg 1299 1236 0.00      
27 Bg 1191 1133 0.00      
28 Bg 822 782 0.00      
29 Bg 276 263 0.00      
30 Bg 157 150 0.00      
31 Bu 3902 3713 42.74      
32 Bu 3072 2923 60.24      
33 Bu 2997 2851 115.11      
34 Bu 1549 1474 7.66      
35 Bu 1518 1445 3.85      
36 Bu 1477 1406 16.20      
37 Bu 1318 1255 98.99      
38 Bu 1218 1159 35.60      
39 Bu 1115 1061 206.43      
40 Bu 1015 966 5.03      
41 Bu 526 501 39.07      
42 Bu 138 131 6.15      

Unscaled Zero Point Vibrational Energy (zpe) 31547.6 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 30017.6 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 mPW1PW91/6-31G**
ABC
0.57742 0.03848 0.03707

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 1.347 0.000
C4 -1.399 -1.347 0.000
C5 0.000 0.762 0.000
C6 0.000 -0.762 0.000
H7 2.169 3.127 0.000
H8 -2.169 -3.127 0.000
H9 -0.532 1.145 0.878
H10 -0.532 1.145 -0.878
H11 0.532 -1.145 0.878
H12 0.532 -1.145 -0.878
H13 -1.947 -0.989 -0.885
H14 -1.947 -0.989 0.885
H15 1.947 0.989 -0.885
H16 1.947 0.989 0.885

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O16.07831.41314.90052.37043.74370.96066.82012.58032.58034.06764.06765.02315.02312.08462.0846
O26.07834.90051.41313.74372.37046.82010.96064.06764.06762.58032.58032.08462.08465.02315.0231
C31.41314.90053.88301.51592.53021.93995.72182.13042.13042.78042.78044.17494.17491.10131.1013
C44.90051.41313.88302.53021.51595.72181.93992.78042.78042.13042.13041.10131.10134.17494.1749
C52.37043.74371.51592.53021.52383.20894.45281.09591.09592.16572.16572.76382.76382.15082.1508
C63.74372.37042.53021.51591.52384.45283.20892.16572.16571.09591.09592.15082.15082.76382.7638
H70.96066.82011.93995.72183.20894.45287.61103.46313.46314.65844.65845.88745.88742.32522.3252
H86.82010.96065.72181.93994.45283.20897.61104.65844.65843.46313.46312.32522.32525.88745.8874
H92.58034.06762.13042.78041.09592.16573.46314.65841.75662.52493.07583.10882.56023.04632.4838
H102.58034.06762.13042.78041.09592.16573.46314.65841.75663.07582.52492.56023.10882.48383.0463
H114.06762.58032.78042.13042.16571.09594.65843.46312.52493.07581.75663.04632.48383.10882.5602
H124.06762.58032.78042.13042.16571.09594.65843.46313.07582.52491.75662.48383.04632.56023.1088
H135.02312.08464.17491.10132.76382.15085.88742.32523.10882.56023.04632.48381.77074.36724.7125
H145.02312.08464.17491.10132.76382.15085.88742.32522.56023.10882.48383.04631.77074.71254.3672
H152.08465.02311.10134.17492.15082.76382.32525.88743.04632.48383.10882.56024.36724.71251.7707
H162.08465.02311.10134.17492.15082.76382.32525.88742.48383.04632.56023.10884.71254.36721.7707

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 108.000 O1 C3 H15 111.395
O1 C3 H16 111.395 O2 C4 C6 108.000
O2 C4 H13 111.395 O2 C4 H14 111.395
C3 O1 H7 108.096 C3 C5 C6 112.689
C3 C5 H9 108.237 C3 C5 H10 108.237
C4 O2 H8 108.096 C4 C6 C5 112.689
C4 C6 H11 108.237 C4 C6 H12 108.237
C5 C3 H15 109.514 C5 C3 H16 109.514
C5 C6 H11 110.457 C5 C6 H12 110.457
C6 C4 H13 109.514 C6 C4 H14 109.514
C6 C5 H9 110.457 C6 C5 H10 110.457
H9 C5 H10 106.537 H11 C6 H12 106.537
H13 C4 H14 107.008 H15 C3 H16 107.008
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 -0.559      
2 O -0.559      
3 C 0.012      
4 C 0.012      
5 C -0.261      
6 C -0.261      
7 H 0.320      
8 H 0.320      
9 H 0.138      
10 H 0.138      
11 H 0.138      
12 H 0.138      
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 -27.242 8.076 0.000
y 8.076 -42.281 0.000
z 0.000 0.000 -37.847
Traceless
 xyz
x 12.823 8.076 0.000
y 8.076 -9.737 0.000
z 0.000 0.000 -3.086
Polar
3z2-r2-6.172
x2-y215.040
xy8.076
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> 282.968
(<r2>)1/2 16.822