return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP2/SDD

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/SDD
 hartrees
Energy at 0K-307.512181
Energy at 298.15K-307.523601
HF Energy-306.920456
Nuclear repulsion energy239.296704
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/SDD
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 3652 3526 0.00      
2 Ag 3039 2934 0.00      
3 Ag 3011 2907 0.00      
4 Ag 1552 1498 0.00      
5 Ag 1537 1483 0.00      
6 Ag 1467 1416 0.00      
7 Ag 1421 1371 0.00      
8 Ag 1258 1214 0.00      
9 Ag 1081 1044 0.00      
10 Ag 1034 998 0.00      
11 Ag 964 931 0.00      
12 Ag 357 345 0.00      
13 Ag 320 309 0.00      
14 Au 3119 3011 121.88      
15 Au 3068 2961 70.53      
16 Au 1344 1297 4.84      
17 Au 1203 1161 3.32      
18 Au 974 940 0.74      
19 Au 796 769 1.86      
20 Au 256 248 353.38      
21 Au 95 92 29.05      
22 Au 72 69 12.01      
23 Bg 3098 2990 0.00      
24 Bg 3068 2962 0.00      
25 Bg 1334 1288 0.00      
26 Bg 1308 1263 0.00      
27 Bg 1181 1140 0.00      
28 Bg 854 824 0.00      
29 Bg 248 239 0.00      
30 Bg 138 133 0.00      
31 Bu 3652 3526 14.01      
32 Bu 3046 2940 76.99      
33 Bu 3011 2906 108.77      
34 Bu 1557 1503 5.42      
35 Bu 1539 1485 4.04      
36 Bu 1470 1419 19.42      
37 Bu 1331 1285 27.75      
38 Bu 1212 1170 74.00      
39 Bu 1029 994 128.68      
40 Bu 944 911 52.27      
41 Bu 499 482 53.59      
42 Bu 135 130 10.82      

Unscaled Zero Point Vibrational Energy (zpe) 31136.3 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 30055.9 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/SDD
ABC
0.54330 0.03674 0.03535

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.294 2.838 0.000
O2 -1.294 -2.838 0.000
C3 1.434 1.352 0.000
C4 -1.434 -1.352 0.000
C5 0.000 0.781 0.000
C6 0.000 -0.781 0.000
H7 2.178 3.273 0.000
H8 -2.178 -3.273 0.000
H9 -0.528 1.163 0.894
H10 -0.528 1.163 -0.894
H11 0.528 -1.163 0.894
H12 0.528 -1.163 -0.894
H13 -1.985 -1.020 -0.902
H14 -1.985 -1.020 0.902
H15 1.985 1.020 -0.902
H16 1.985 1.020 0.902

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O16.23861.49254.99992.43083.84320.98507.02882.63242.63244.17044.17045.14315.14312.14352.1435
O26.23864.99991.49253.84322.43087.02880.98504.17044.17042.63242.63242.14352.14355.14315.1431
C31.49254.99993.94111.54322.56972.06035.86822.16452.16452.81832.81834.25734.25731.10801.1080
C44.99991.49253.94112.56971.54325.86822.06032.81832.81832.16452.16451.10801.10804.25734.2573
C52.43083.84321.54322.56971.56113.31014.60181.10681.10682.20352.20352.82762.82762.19312.1931
C63.84322.43082.56971.54321.56114.60183.31012.20352.20351.10681.10682.19312.19312.82762.8276
H70.98507.02882.06035.86823.31014.60187.86323.54673.54674.81644.81646.04776.04772.43452.4345
H87.02880.98505.86822.06034.60183.31017.86324.81644.81643.54673.54672.43452.43456.04776.0477
H92.63244.17042.16452.81831.10682.20353.54674.81641.78852.55443.11833.18002.62403.09242.5171
H102.63244.17042.16452.81831.10682.20353.54674.81641.78853.11832.55442.62403.18002.51713.0924
H114.17042.63242.81832.16452.20351.10684.81643.54672.55443.11831.78853.09242.51713.18002.6240
H124.17042.63242.81832.16452.20351.10684.81643.54673.11832.55441.78852.51713.09242.62403.1800
H135.14312.14354.25731.10802.82762.19316.04772.43453.18002.62403.09242.51711.80434.46294.8138
H145.14312.14354.25731.10802.82762.19316.04772.43452.62403.18002.51713.09241.80434.81384.4629
H152.14355.14311.10804.25732.19312.82762.43456.04773.09242.51713.18002.62404.46294.81381.8043
H162.14355.14311.10804.25732.19312.82762.43456.04772.51713.09242.62403.18004.81384.46291.8043

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 106.388 O1 C3 H15 110.155
O1 C3 H16 110.155 O2 C4 C6 106.388
O2 C4 H13 110.155 O2 C4 H14 110.155
C3 O1 H7 110.864 C3 C5 C6 111.735
C3 C5 H9 108.400 C3 C5 H10 108.400
C4 O2 H8 110.864 C4 C6 C5 111.735
C4 C6 H11 108.400 C4 C6 H12 108.400
C5 C3 H15 110.553 C5 C3 H16 110.553
C5 C6 H11 110.199 C5 C6 H12 110.199
C6 C4 H13 110.553 C6 C4 H14 110.553
C6 C5 H9 110.199 C6 C5 H10 110.199
H9 C5 H10 107.795 H11 C6 H12 107.795
H13 C4 H14 109.017 H15 C3 H16 109.017
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability