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All results from a given calculation for C4H10O (2-Butanol, (.+/-.)-)

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-231.355930
Energy at 298.15K-231.367344
HF Energy-230.866518
Nuclear repulsion energy191.563874
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 3473 3303 2.53      
2 A 3190 3035 14.49      
3 A 3174 3020 16.74      
4 A 3159 3005 50.66      
5 A 3153 2999 21.33      
6 A 3128 2975 10.02      
7 A 3116 2964 11.81      
8 A 3091 2940 20.21      
9 A 3077 2927 14.52      
10 A 3063 2914 15.09      
11 A 1616 1538 5.94      
12 A 1600 1522 8.31      
13 A 1598 1520 2.86      
14 A 1595 1517 7.71      
15 A 1582 1505 1.03      
16 A 1485 1413 0.90      
17 A 1485 1413 17.43      
18 A 1438 1368 14.66      
19 A 1433 1363 16.40      
20 A 1406 1338 6.13      
21 A 1395 1327 2.06      
22 A 1325 1260 5.05      
23 A 1226 1166 3.50      
24 A 1158 1101 20.07      
25 A 1116 1062 44.14      
26 A 1052 1000 9.57      
27 A 1025 976 15.18      
28 A 1020 970 15.62      
29 A 920 875 18.59      
30 A 848 807 6.44      
31 A 782 744 3.26      
32 A 495 471 12.63      
33 A 453 431 8.50      
34 A 379 360 103.71      
35 A 361 344 41.51      
36 A 265 252 2.15      
37 A 256 244 1.23      
38 A 234 223 0.11      
39 A 141 134 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 30656.0 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 29163.1 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
0.25820 0.11461 0.08816

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 -0.453 1.437 0.055
H2 -0.591 1.438 1.041
C3 -1.836 -0.627 0.011
H4 -1.945 -0.671 1.102
H5 -1.901 -1.646 -0.385
C6 -0.482 0.013 -0.353
H7 -0.369 0.054 -1.441
C8 0.715 -0.748 0.256
H9 0.706 -1.782 -0.108
H10 0.580 -0.782 1.347
C11 2.052 -0.050 -0.089
H12 2.253 -0.129 -1.164
H13 1.963 1.008 0.166
H14 2.889 -0.496 0.457
H15 -2.650 -0.025 -0.402

Atom - Atom Distances (Å)
  O1 H2 C3 H4 H5 C6 H7 C8 H9 H10 C11 H12 H13 H14 H15
O10.99572.48472.78673.43431.48162.03932.48593.42592.76782.91713.35632.45693.88212.6782
H20.99572.62232.50723.64151.99672.85072.66473.65732.52833.23713.92532.73404.02412.9093
C32.48472.62231.09761.09491.54092.17322.56532.79502.76533.93154.28364.13894.74771.0938
H42.78672.50721.09761.77832.17403.07842.79253.11962.53974.21704.80174.35564.88041.7822
H53.43433.64151.09491.77832.18322.52052.83892.62563.14684.27314.49084.72014.99751.7860
C61.48161.99671.54092.17402.18321.09411.54412.16742.15712.54882.85692.69083.50472.1688
H72.03932.85072.17323.07842.52051.09412.16722.51063.06142.77432.64312.98853.81022.5082
C82.48592.66472.56532.79252.83891.54412.16721.09671.10011.54732.18322.15642.19803.5043
H93.42593.65732.79503.11962.62562.16742.51061.09671.77102.19342.49823.07262.59583.8004
H102.76782.52832.76532.53973.14682.15713.06141.10011.77102.18303.08732.55172.49113.7507
C112.91713.23713.93154.21704.27312.54882.77431.54732.19342.18301.09581.09231.09464.7127
H123.35633.92534.28364.80174.49082.85692.64312.18322.49823.08731.09581.77361.77924.9637
H132.45692.73404.13894.35564.72012.69082.98852.15643.07262.55171.09231.77361.79004.7618
H143.88214.02414.74774.88044.99753.50473.81022.19802.59582.49111.09461.77921.79005.6254
H152.67822.90931.09381.78221.78602.16882.50823.50433.80043.75074.71274.96374.76185.6254

picture of 2-Butanol, (.+/-.)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C6 C3 110.575 O1 C6 H7 103.675
O1 C6 C8 110.474 H2 O1 C6 105.742
C3 C6 H7 109.966 C3 C6 C8 112.513
H4 C3 H5 108.406 H4 C3 C6 109.827
H4 C3 H15 108.830 H5 C3 C6 110.716
H5 C3 H15 109.382 C6 C3 H15 109.644
C6 C8 H9 109.143 C6 C8 H10 108.158
C6 C8 C11 111.074 H7 C6 C8 109.269
C8 C11 H12 110.210 C8 C11 H13 108.326
C8 C11 H14 111.454 H9 C8 H10 107.444
H9 C8 C11 110.960 H10 C8 C11 109.950
H12 C11 H13 108.301 H12 C11 H14 108.633
H13 C11 H14 109.864
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability