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

using model chemistry: MP2/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-307.472552
Energy at 298.15K-307.484187
HF Energy-306.860501
Nuclear repulsion energy241.186085
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 MP2/6-31G
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 3645 3487 0.00      
2 Ag 3060 2928 0.00      
3 Ag 3025 2894 0.00      
4 Ag 1596 1527 0.00      
5 Ag 1569 1502 0.00      
6 Ag 1486 1422 0.00      
7 Ag 1419 1358 0.00      
8 Ag 1280 1225 0.00      
9 Ag 1095 1048 0.00      
10 Ag 1058 1012 0.00      
11 Ag 989 946 0.00      
12 Ag 371 355 0.00      
13 Ag 330 316 0.00      
14 Au 3130 2995 92.39      
15 Au 3067 2934 82.54      
16 Au 1367 1308 4.11      
17 Au 1224 1171 2.49      
18 Au 984 941 1.79      
19 Au 780 746 0.31      
20 Au 283 271 338.96      
21 Au 102 98 26.96      
22 Au 77 74 6.51      
23 Bg 3106 2972 0.00      
24 Bg 3068 2936 0.00      
25 Bg 1359 1300 0.00      
26 Bg 1325 1268 0.00      
27 Bg 1201 1150 0.00      
28 Bg 854 817 0.00      
29 Bg 278 266 0.00      
30 Bg 152 145 0.00      
31 Bu 3645 3487 10.42      
32 Bu 3068 2936 55.74      
33 Bu 3024 2894 78.59      
34 Bu 1600 1531 2.69      
35 Bu 1577 1509 6.34      
36 Bu 1488 1423 17.86      
37 Bu 1349 1290 34.63      
38 Bu 1233 1180 70.41      
39 Bu 1046 1000 127.80      
40 Bu 971 929 40.46      
41 Bu 516 493 52.35      
42 Bu 141 135 9.93      

Unscaled Zero Point Vibrational Energy (zpe) 31468.6 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 30109.2 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 MP2/6-31G
ABC
0.55391 0.03727 0.03587

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.270 2.823 0.000
O2 -1.270 -2.823 0.000
C3 1.415 1.355 0.000
C4 -1.415 -1.355 0.000
C5 0.000 0.773 0.000
C6 0.000 -0.773 0.000
H7 2.151 3.252 0.000
H8 -2.151 -3.252 0.000
H9 -0.530 1.156 0.885
H10 -0.530 1.156 -0.885
H11 0.530 -1.156 0.885
H12 0.530 -1.156 -0.885
H13 -1.968 -1.020 -0.893
H14 -1.968 -1.020 0.893
H15 1.968 1.020 -0.893
H16 1.968 1.020 0.893

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O16.19141.47534.96652.41153.81410.97976.97192.60842.60844.14334.14335.10405.10402.13022.1302
O26.19144.96651.47533.81412.41156.97190.97974.14334.14332.60842.60842.13022.13025.10405.1040
C31.47534.96653.91821.52992.55562.03455.82562.14652.14652.80592.80594.22874.22871.10281.1028
C44.96651.47533.91822.55561.52995.82562.03452.80592.80592.14652.14651.10281.10284.22874.2287
C52.41153.81411.52992.55561.54643.28174.56361.10081.10082.18812.18812.80812.80812.17532.1753
C63.81412.41152.55561.52991.54644.56363.28172.18812.18811.10081.10082.17532.17532.80812.8081
H70.97976.97192.03455.82563.28174.56367.79753.51633.51634.77914.77916.00086.00082.41102.4110
H86.97190.97975.82562.03454.56363.28177.79754.77914.77913.51633.51632.41102.41106.00086.0008
H92.60844.14332.14652.80591.10082.18813.51634.77911.77082.54403.09973.15682.60813.06982.5021
H102.60844.14332.14652.80591.10082.18813.51634.77911.77083.09972.54402.60813.15682.50213.0698
H114.14332.60842.80592.14652.18811.10084.77913.51632.54403.09971.77083.06982.50213.15682.6081
H124.14332.60842.80592.14652.18811.10084.77913.51633.09972.54401.77082.50213.06982.60813.1568
H135.10402.13024.22871.10282.80812.17536.00082.41103.15682.60813.06982.50211.78644.43314.7795
H145.10402.13024.22871.10282.80812.17536.00082.41102.60813.15682.50213.06981.78644.77954.4331
H152.13025.10401.10284.22872.17532.80812.41106.00083.06982.50213.15682.60814.43314.77951.7864
H162.13025.10401.10284.22872.17532.80812.41106.00082.50213.06982.60813.15684.77954.43311.7864

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 106.713 O1 C3 H15 110.599
O1 C3 H16 110.599 O2 C4 C6 106.713
O2 C4 H13 110.599 O2 C4 H14 110.599
C3 O1 H7 110.298 C3 C5 C6 112.348
C3 C5 H9 108.251 C3 C5 H10 108.251
C4 O2 H8 110.298 C4 C6 C5 112.348
C4 C6 H11 108.251 C4 C6 H12 108.251
C5 C3 H15 110.382 C5 C3 H16 110.382
C5 C6 H11 110.362 C5 C6 H12 110.362
C6 C4 H13 110.382 C6 C4 H14 110.382
C6 C5 H9 110.362 C6 C5 H10 110.362
H9 C5 H10 107.090 H11 C6 H12 107.090
H13 C4 H14 108.179 H15 C3 H16 108.179
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability