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All results from a given calculation for C4H10O2 (1,3-Butanediol)

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-305.898451
Energy at 298.15K-305.910258
HF Energy-305.295041
Nuclear repulsion energy253.352699
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 MP2/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3514 3354 0.53      
2 A 3504 3344 1.34      
3 A 3177 3032 32.23      
4 A 3166 3022 14.94      
5 A 3150 3007 24.37      
6 A 3130 2987 18.91      
7 A 3110 2968 10.26      
8 A 3079 2939 15.69      
9 A 3037 2898 95.42      
10 A 3031 2893 5.28      
11 A 1638 1563 3.15      
12 A 1601 1528 4.46      
13 A 1595 1522 6.47      
14 A 1579 1507 2.15      
15 A 1497 1429 1.70      
16 A 1486 1419 3.67      
17 A 1469 1402 19.70      
18 A 1434 1369 8.93      
19 A 1386 1323 6.37      
20 A 1376 1313 7.11      
21 A 1334 1274 28.93      
22 A 1284 1225 52.97      
23 A 1239 1182 9.55      
24 A 1186 1132 5.67      
25 A 1145 1093 38.63      
26 A 1106 1056 5.54      
27 A 1033 986 23.79      
28 A 1030 983 33.31      
29 A 1004 958 19.80      
30 A 959 915 16.93      
31 A 866 827 5.45      
32 A 831 794 15.24      
33 A 495 472 22.84      
34 A 467 446 1.40      
35 A 387 370 15.38      
36 A 336 321 2.81      
37 A 325 310 149.66      
38 A 285 272 118.94      
39 A 257 246 0.06      
40 A 186 177 6.78      
41 A 127 121 8.03      
42 A 97 93 7.69      

Unscaled Zero Point Vibrational Energy (zpe) 31467.7 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 30036.0 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 MP2/3-21G
ABC
0.24396 0.05870 0.05058

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.093 1.346 -0.279
H2 1.933 1.783 0.018
O3 -2.681 -0.362 -0.195
H4 -3.447 0.258 -0.077
C5 2.243 -0.845 -0.082
H6 2.249 -0.902 -1.174
H7 3.186 -0.396 0.255
H8 2.172 -1.855 0.335
C9 1.042 0.012 0.361
H10 1.041 0.110 1.458
C11 -0.297 -0.581 -0.092
H12 -0.455 -1.556 0.381
H13 -0.277 -0.717 -1.178
C14 -1.469 0.344 0.259
H15 -1.487 0.526 1.345
H16 -1.320 1.301 -0.250

Atom - Atom Distances (Å)
  O1 H2 O3 H4 C5 H6 H7 H8 C9 H10 C11 H12 H13 C14 H15 H16
O10.99324.14294.67202.48212.68142.77463.43251.48052.13242.38273.35422.63372.80273.15582.4133
H20.99325.09345.59292.64842.95482.52453.65962.01292.38183.25224.12203.54473.70243.87803.3001
O34.14295.09340.99214.94915.05515.88435.10453.78344.10042.39602.59052.62111.47432.14172.1496
H44.67205.59290.99215.79565.91496.67286.01624.51714.74573.25913.52803.49372.00762.43612.3748
C52.48212.64844.94915.79561.09401.09711.09471.53992.17402.55412.82882.75123.91304.22234.1630
H62.68142.95485.05515.91491.09401.78201.78672.15573.06762.78523.18742.53274.17504.72654.2946
H72.77462.52455.88436.67281.09711.78201.77872.18442.51053.50523.82383.76124.71354.88604.8413
H83.43253.65965.10456.01621.09471.78671.77872.18122.52902.81072.64423.09514.25384.48014.7426
C91.48052.01293.78344.51711.53992.15572.18442.18121.10131.53322.16822.15402.53572.76212.7602
H102.13242.38184.10044.74572.17403.06762.51052.52901.10132.16122.48503.06092.79232.56493.1490
C112.38273.25222.39603.25912.55412.78523.50522.81071.53322.16121.09531.09471.53352.16882.1476
H123.35424.12202.59053.52802.82883.18743.82382.64422.16822.48501.09531.77932.15722.51593.0510
H132.63373.54472.62113.49372.75122.53273.76123.09512.15403.06091.09471.77932.14713.06112.4532
C142.80273.70241.47432.00763.91304.17504.71354.25382.53572.79231.53352.15722.14711.10101.0941
H153.15583.87802.14172.43614.22234.72654.88604.48012.76212.56492.16882.51593.06111.10101.7809
H162.41333.30012.14962.37484.16304.29464.84134.74262.76023.14902.14763.05102.45321.09411.7809

picture of 1,3-Butanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C9 C5 110.512 O1 C9 H10 110.510
O1 C9 C11 104.475 H2 O1 C9 107.275
O3 C14 C11 105.596 O3 C14 H15 111.713
O3 C14 H16 112.801 H4 O3 C14 107.351
C5 C9 H10 109.677 C5 C9 C11 112.428
H6 C5 H7 108.837 H6 C5 H8 109.435
H6 C5 C9 108.678 H7 C5 H8 108.491
H7 C5 C9 110.740 H8 C5 C9 110.631
C9 C11 H12 110.038 C9 C11 H13 108.960
C9 C11 C14 111.550 H10 C9 C11 109.138
C11 C14 H15 109.728 C11 C14 H16 108.471
H12 C11 H13 108.679 H12 C11 C14 109.148
H13 C11 C14 108.406 H15 C14 H16 108.441
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.565     -0.639
2 H 0.340     0.396
3 O -0.574     -0.657
4 H 0.339     0.396
5 C -0.547     -0.450
6 H 0.201     0.128
7 H 0.171     0.111
8 H 0.185     0.107
9 C 0.019     0.380
10 H 0.167     -0.013
11 C -0.380     -0.227
12 H 0.195     0.076
13 H 0.210     0.104
14 C -0.105     0.338
15 H 0.151     -0.040
16 H 0.193     -0.010


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.401 1.116 1.518 2.348
CHELPG        
AIM        
ESP 1.410 1.114 1.517 2.351


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.268 -2.969 -0.140
y -2.969 -38.867 0.948
z -0.140 0.948 -39.264
Traceless
 xyz
x 6.798 -2.969 -0.140
y -2.969 -3.101 0.948
z -0.140 0.948 -3.696
Polar
3z2-r2-7.393
x2-y26.599
xy-2.969
xz-0.140
yz0.948


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.110 0.052 0.173
y 0.052 6.625 0.004
z 0.173 0.004 5.857


<r2> (average value of r2) Å2
<r2> 225.449
(<r2>)1/2 15.015