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

using model chemistry: MP2/CEP-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 MP2/CEP-31G*
 hartrees
Energy at 0K-59.983405
Energy at 298.15K-59.995057
HF Energy-59.143015
Nuclear repulsion energy140.343593
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/CEP-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 3798 3605 0.00      
2 Ag 3098 2942 0.00      
3 Ag 3055 2901 0.00      
4 Ag 1551 1473 0.00      
5 Ag 1524 1447 0.00      
6 Ag 1493 1417 0.00      
7 Ag 1408 1337 0.00      
8 Ag 1290 1225 0.00      
9 Ag 1099 1043 0.00      
10 Ag 1075 1020 0.00      
11 Ag 1061 1007 0.00      
12 Ag 361 343 0.00      
13 Ag 335 318 0.00      
14 Au 3181 3020 95.36      
15 Au 3113 2956 96.51      
16 Au 1352 1284 3.69      
17 Au 1226 1164 3.50      
18 Au 967 918 2.19      
19 Au 768 729 1.07      
20 Au 306 290 282.69      
21 Au 101 96 18.39      
22 Au 79 75 10.60      
23 Bg 3162 3002 0.00      
24 Bg 3112 2955 0.00      
25 Bg 1348 1280 0.00      
26 Bg 1305 1239 0.00      
27 Bg 1181 1121 0.00      
28 Bg 829 787 0.00      
29 Bg 300 285 0.00      
30 Bg 152 145 0.00      
31 Bu 3798 3605 46.18      
32 Bu 3103 2946 67.03      
33 Bu 3056 2902 129.15      
34 Bu 1553 1475 6.94      
35 Bu 1531 1454 5.60      
36 Bu 1481 1406 18.67      
37 Bu 1321 1255 91.23      
38 Bu 1219 1158 44.00      
39 Bu 1091 1036 187.89      
40 Bu 1012 961 5.42      
41 Bu 516 490 44.61      
42 Bu 136 129 8.05      

Unscaled Zero Point Vibrational Energy (zpe) 31723.6 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 30118.4 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/CEP-31G*
ABC
0.55802 0.03774 0.03633

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.316 2.778 0.000
O2 -1.316 -2.778 0.000
C3 1.425 1.336 0.000
C4 -1.425 -1.336 0.000
C5 0.000 0.772 0.000
C6 0.000 -0.772 0.000
H7 2.224 3.138 0.000
H8 -2.224 -3.138 0.000
H9 -0.528 1.156 0.892
H10 -0.528 1.156 -0.892
H11 0.528 -1.156 0.892
H12 0.528 -1.156 -0.892
H13 -1.970 -0.984 -0.900
H14 -1.970 -0.984 0.900
H15 1.970 0.984 -0.900
H16 1.970 0.984 0.900

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O16.14751.44604.94302.39903.78590.97696.89412.61282.61284.11024.11025.07515.07512.11042.1104
O26.14754.94301.44603.78592.39906.89410.97694.11024.11022.61282.61282.11042.11045.07515.0751
C31.44604.94303.90601.53222.54421.97155.77312.15452.15452.79482.79484.20874.20871.10911.1091
C44.94301.44603.90602.54421.53225.77311.97152.79482.79482.15452.15451.10911.10914.20874.2087
C52.39903.78591.53222.54421.54403.24724.49831.10581.10582.18942.18942.78802.78802.17572.1757
C63.78592.39902.54421.53221.54404.49833.24722.18942.18941.10581.10582.17572.17572.78802.7880
H70.97696.89411.97155.77313.24724.49837.69253.50683.50684.70254.70255.94885.94882.34812.3481
H86.89410.97695.77311.97154.49833.24727.69254.70254.70253.50683.50682.34812.34815.94885.9488
H92.61284.11022.15452.79481.10582.18943.50684.70251.78492.54213.10623.14182.58053.07892.5035
H102.61284.11022.15452.79481.10582.18943.50684.70251.78493.10622.54212.58053.14182.50353.0789
H114.11022.61282.79482.15452.18941.10584.70253.50682.54213.10621.78493.07892.50353.14182.5805
H124.11022.61282.79482.15452.18941.10584.70253.50683.10622.54211.78492.50353.07892.58053.1418
H135.07512.11044.20871.10912.78802.17575.94882.34813.14182.58053.07892.50351.79944.40354.7570
H145.07512.11044.20871.10912.78802.17575.94882.34812.58053.14182.50353.07891.79944.75704.4035
H152.11045.07511.10914.20872.17572.78802.34815.94883.07892.50353.14182.58054.40354.75701.7994
H162.11045.07511.10914.20872.17572.78802.34815.94882.50353.07892.58053.14184.75704.40351.7994

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 107.282 O1 C3 H15 110.680
O1 C3 H16 110.680 O2 C4 C6 107.282
O2 C4 H13 110.680 O2 C4 H14 110.680
C3 O1 H7 107.334 C3 C5 C6 111.591
C3 C5 H9 108.430 C3 C5 H10 108.430
C4 O2 H8 107.334 C4 C6 C5 111.591
C4 C6 H11 108.430 C4 C6 H12 108.430
C5 C3 H15 109.884 C5 C3 H16 109.884
C5 C6 H11 110.329 C5 C6 H12 110.329
C6 C4 H13 109.884 C6 C4 H14 109.884
C6 C5 H9 110.329 C6 C5 H10 110.329
H9 C5 H10 107.615 H11 C6 H12 107.615
H13 C4 H14 108.429 H15 C3 H16 108.429
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability