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

using model chemistry: QCISD/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 QCISD/3-21G
 hartrees
Energy at 0K-305.954521
Energy at 298.15K-305.966253
HF Energy-305.294166
Nuclear repulsion energy252.736786
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 QCISD/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 3473 3366 3.02      
2 A 3471 3364 2.29      
3 A 3112 3016 46.40      
4 A 3103 3008 6.15      
5 A 3084 2989 27.18      
6 A 3070 2975 17.96      
7 A 3055 2960 10.16      
8 A 3022 2929 17.51      
9 A 2980 2888 92.74      
10 A 2974 2882 4.42      
11 A 1614 1564 3.11      
12 A 1577 1528 4.25      
13 A 1571 1523 6.34      
14 A 1558 1510 1.90      
15 A 1484 1438 1.43      
16 A 1470 1425 2.78      
17 A 1457 1412 19.95      
18 A 1418 1374 8.03      
19 A 1372 1330 14.13      
20 A 1361 1319 3.52      
21 A 1324 1284 32.19      
22 A 1277 1238 53.58      
23 A 1225 1188 10.18      
24 A 1173 1136 5.97      
25 A 1138 1103 37.08      
26 A 1093 1059 4.33      
27 A 1024 992 54.97      
28 A 1017 986 0.30      
29 A 995 964 17.00      
30 A 949 919 13.10      
31 A 854 828 5.35      
32 A 823 797 13.94      
33 A 489 474 22.23      
34 A 462 447 1.60      
35 A 384 372 15.21      
36 A 333 322 2.95      
37 A 321 311 148.75      
38 A 281 272 117.40      
39 A 249 242 0.08      
40 A 184 178 6.55      
41 A 124 120 7.62      
42 A 94 91 7.85      

Unscaled Zero Point Vibrational Energy (zpe) 31017.1 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 30061.8 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 QCISD/3-21G
ABC
0.24310 0.05840 0.05033

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.095 1.347 -0.278
H2 1.935 1.789 0.016
O3 -2.687 -0.364 -0.192
H4 -3.456 0.255 -0.080
C5 2.250 -0.846 -0.081
H6 2.257 -0.904 -1.178
H7 3.196 -0.395 0.257
H8 2.178 -1.859 0.338
C9 1.045 0.013 0.362
H10 1.043 0.113 1.463
C11 -0.298 -0.583 -0.093
H12 -0.458 -1.560 0.384
H13 -0.277 -0.723 -1.182
C14 -1.474 0.346 0.255
H15 -1.491 0.536 1.344
H16 -1.328 1.304 -0.262

Atom - Atom Distances (Å)
  O1 H2 O3 H4 C5 H6 H7 H8 C9 H10 C11 H12 H13 C14 H15 H16
O10.99414.15204.68382.48632.68832.78113.43971.48032.13472.38753.36192.64272.80843.15842.4237
H20.99415.10345.60542.65602.96402.53373.67102.01662.38723.26014.13323.55553.70983.88203.3109
O34.15205.10340.99354.96195.07065.90055.11713.79184.10862.40102.59482.63011.47512.14512.1524
H44.68385.60540.99355.81105.93196.69196.03184.52864.75803.26693.53543.50372.01152.44272.3785
C52.48632.65604.96195.81101.09831.10121.09891.54522.18202.56182.83912.75913.92514.23514.1784
H62.68832.96405.07065.93191.09831.78851.79322.16433.07952.79493.20052.54074.18844.74164.3092
H72.78112.53375.90056.69191.10121.78851.78562.19222.51983.51683.83763.77364.72894.90074.8606
H83.43973.67105.11716.03181.09891.79321.78562.18882.53862.81862.65303.10264.26734.49564.7600
C91.48032.01663.79184.52861.54522.16432.19222.18881.10501.53842.17612.16212.54332.76892.7726
H102.13472.38724.10864.75802.18203.07952.51982.53861.10502.16872.49343.07202.80172.57173.1649
C112.38753.26012.40103.26692.56182.79493.51682.81861.53842.16871.09901.09861.53892.17692.1564
H123.36194.13322.59483.53542.83913.20053.83762.65302.17612.49341.09901.78512.16462.52663.0625
H132.64273.55552.63013.50372.75912.54073.77363.10262.16213.07201.09861.78512.15493.07252.4617
C142.80843.70981.47512.01153.92514.18844.72894.26732.54332.80171.53892.16462.15491.10511.0980
H153.15843.88202.14512.44274.23514.74164.90074.49562.76892.57172.17692.52663.07251.10511.7875
H162.42373.31092.15242.37854.17844.30924.86064.76002.77263.16492.15643.06252.46171.09801.7875

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 110.503 O1 C9 H10 110.475
O1 C9 C11 104.525 H2 O1 C9 107.546
O3 C14 C11 105.594 O3 C14 H15 111.671
O3 C14 H16 112.720 H4 O3 C14 107.537
C5 C9 H10 109.721 C5 C9 C11 112.361
H6 C5 H7 108.809 H6 C5 H8 109.402
H6 C5 C9 108.738 H7 C5 H8 108.502
H7 C5 C9 110.745 H8 C5 C9 110.615
C9 C11 H12 110.078 C9 C11 H13 109.018
C9 C11 C14 111.478 H10 C9 C11 109.152
C11 C14 H15 109.751 C11 C14 H16 108.568
H12 C11 H13 108.643 H12 C11 C14 109.142
H13 C11 C14 108.422 H15 C14 H16 108.453
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability