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

using model chemistry: B1B95/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B1B95/3-21G*
 hartrees
Energy at 0K-307.015713
Energy at 298.15K-307.027359
Nuclear repulsion energy243.701390
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 B1B95/3-21G*
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 3526 3367 0.00      
2 Ag 3077 2938 0.00      
3 Ag 2999 2864 0.00      
4 Ag 1584 1513 0.00      
5 Ag 1546 1476 0.00      
6 Ag 1469 1402 0.00      
7 Ag 1387 1325 0.00      
8 Ag 1280 1222 0.00      
9 Ag 1074 1025 0.00      
10 Ag 1062 1014 0.00      
11 Ag 1011 966 0.00      
12 Ag 364 348 0.00      
13 Ag 315 301 0.00      
14 Au 3144 3002 57.14      
15 Au 3029 2893 115.56      
16 Au 1359 1298 5.50      
17 Au 1214 1159 0.83      
18 Au 976 932 2.26      
19 Au 783 748 1.50      
20 Au 306 292 287.57      
21 Au 107 102 20.08      
22 Au 77 74 2.23      
23 Bg 3116 2976 0.00      
24 Bg 3030 2893 0.00      
25 Bg 1346 1285 0.00      
26 Bg 1305 1246 0.00      
27 Bg 1175 1122 0.00      
28 Bg 848 810 0.00      
29 Bg 302 288 0.00      
30 Bg 156 149 0.00      
31 Bu 3525 3366 0.45      
32 Bu 3086 2947 41.42      
33 Bu 2998 2863 91.37      
34 Bu 1586 1514 5.69      
35 Bu 1553 1483 8.08      
36 Bu 1474 1408 7.83      
37 Bu 1332 1272 69.67      
38 Bu 1230 1175 52.27      
39 Bu 1042 995 154.85      
40 Bu 993 948 1.24      
41 Bu 503 481 47.36      
42 Bu 130 125 8.50      

Unscaled Zero Point Vibrational Energy (zpe) 31209.7 cm-1
Scaled (by 0.9549) Zero Point Vibrational Energy (zpe) 29802.2 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 B1B95/3-21G*
ABC
0.55480 0.03837 0.03688

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.547 2.626 0.000
O2 -1.547 -2.626 0.000
C3 1.547 1.173 0.000
C4 -1.547 -1.173 0.000
C5 0.082 0.761 0.000
C6 -0.082 -0.761 0.000
H7 2.490 2.932 0.000
H8 -2.490 -2.932 0.000
H9 -0.392 1.201 0.884
H10 -0.392 1.201 -0.884
H11 0.392 -1.201 0.884
H12 0.392 -1.201 -0.884
H13 -2.042 -0.755 -0.889
H14 -2.042 -0.755 0.889
H15 2.042 0.755 -0.889
H16 2.042 0.755 0.889

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O16.09571.45264.90002.37193.75810.99086.86942.56382.56384.09354.09355.01095.01092.12942.1294
O26.09574.90001.45263.75812.37196.86940.99084.09354.09352.56382.56382.12942.12945.01095.0109
C31.45264.90003.88371.52222.52881.99545.75772.13122.13122.78402.78404.17084.17081.10021.1002
C44.90001.45263.88372.52881.52225.75771.99542.78402.78402.13122.13121.10021.10024.17084.1708
C52.37193.75811.52222.52881.53003.24224.50011.09501.09502.17312.17312.75722.75722.15242.1524
C63.75812.37192.52881.52221.53004.50013.24222.17312.17311.09501.09502.15242.15242.75722.7572
H70.99086.86941.99545.75773.24224.50017.69313.47603.47604.71814.71815.90995.90992.39362.3936
H86.86940.99085.75771.99544.50013.24227.69314.71814.71813.47603.47602.39362.39365.90995.9099
H92.56384.09352.13122.78401.09502.17313.47604.71811.76712.52573.08253.11332.55923.04412.4745
H102.56384.09352.13122.78401.09502.17313.47604.71811.76713.08252.52572.55923.11332.47453.0441
H114.09352.56382.78402.13122.17311.09504.71813.47602.52573.08251.76713.04412.47453.11332.5592
H124.09352.56382.78402.13122.17311.09504.71813.47603.08252.52571.76712.47453.04412.55923.1133
H135.01092.12944.17081.10022.75722.15245.90992.39363.11332.55923.04412.47451.77874.35494.7042
H145.01092.12944.17081.10022.75722.15245.90992.39362.55923.11332.47453.04411.77874.70424.3549
H152.12945.01091.10024.17082.15242.75722.39365.90993.04412.47453.11332.55924.35494.70421.7787
H162.12945.01091.10024.17082.15242.75722.39365.90992.47453.04412.55923.11334.70424.35491.7787

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 105.730 O1 C3 H15 112.317
O1 C3 H16 112.317 O2 C4 C6 105.730
O2 C4 H13 112.317 O2 C4 H14 112.317
C3 O1 H7 108.011 C3 C5 C6 111.898
C3 C5 H9 107.928 C3 C5 H10 107.928
C4 O2 H8 108.011 C4 C6 C5 111.898
C4 C6 H11 107.928 C4 C6 H12 107.928
C5 C3 H15 109.270 C5 C3 H16 109.270
C5 C6 H11 110.667 C5 C6 H12 110.667
C6 C4 H13 109.270 C6 C4 H14 109.270
C6 C5 H9 110.667 C6 C5 H10 110.667
H9 C5 H10 107.591 H11 C6 H12 107.591
H13 C4 H14 107.875 H15 C3 H16 107.875
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.566      
2 O -0.566      
3 C -0.158      
4 C -0.158      
5 C -0.437      
6 C -0.437      
7 H 0.345      
8 H 0.345      
9 H 0.222      
10 H 0.222      
11 H 0.222      
12 H 0.222      
13 H 0.186      
14 H 0.186      
15 H 0.186      
16 H 0.186      


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 -24.959 6.908 0.000
y 6.908 -44.164 0.000
z 0.000 0.000 -37.837
Traceless
 xyz
x 16.042 6.908 0.000
y 6.908 -12.766 0.000
z 0.000 0.000 -3.276
Polar
3z2-r2-6.551
x2-y219.205
xy6.908
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.589 1.275 0.000
y 1.275 7.903 0.000
z 0.000 0.000 5.805


<r2> (average value of r2) Å2
<r2> 284.394
(<r2>)1/2 16.864