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All results from a given calculation for CHOCH2CH2CH3 (Butanal)

using model chemistry: MP2/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/cc-pVTZ
 hartrees
Energy at 0K-231.986831
Energy at 298.15K-231.995460
HF Energy-231.070566
Nuclear repulsion energy172.521174
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/cc-pVTZ
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' 3164 3005 24.34      
2 A' 3096 2940 14.29      
3 A' 3070 2915 21.28      
4 A' 3051 2897 17.96      
5 A' 2945 2797 131.79      
6 A' 1773 1683 103.88      
7 A' 1522 1445 6.04      
8 A' 1502 1426 2.67      
9 A' 1460 1386 13.00      
10 A' 1428 1356 5.52      
11 A' 1419 1347 4.43      
12 A' 1402 1331 15.68      
13 A' 1314 1247 5.55      
14 A' 1151 1093 8.85      
15 A' 1077 1023 0.12      
16 A' 976 927 6.15      
17 A' 873 829 7.94      
18 A' 701 665 13.74      
19 A' 346 328 0.76      
20 A' 194 184 7.73      
21 A" 3159 3000 40.46      
22 A" 3136 2978 0.23      
23 A" 3090 2934 6.02      
24 A" 1518 1441 7.16      
25 A" 1332 1265 0.21      
26 A" 1261 1197 0.08      
27 A" 1159 1100 0.09      
28 A" 951 903 0.04      
29 A" 793 753 0.94      
30 A" 674 640 3.11      
31 A" 253 240 0.01      
32 A" 175 167 1.85      
33 A" 82 78 1.91      

Unscaled Zero Point Vibrational Energy (zpe) 25023.7 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 23760.0 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/cc-pVTZ
ABC
0.50504 0.08602 0.07658

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.269 -0.340 0.000
H2 2.803 -1.288 0.000
H3 2.583 0.221 0.880
H4 2.583 0.221 -0.880
C5 0.763 -0.559 0.000
H6 0.466 -1.143 -0.871
H7 0.466 -1.143 0.871
C8 0.000 0.753 0.000
H9 0.261 1.364 0.870
H10 0.261 1.364 -0.870
C11 -1.497 0.589 0.000
H12 -2.063 1.541 0.000
O13 -2.072 -0.474 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 C11 H12 O13
C11.08851.08981.08981.52252.15742.15742.51872.77352.77353.87874.72324.3430
H21.08851.76081.76082.16702.49842.49843.46783.77543.77544.69195.62934.9425
H31.08981.76081.76052.16753.06732.51802.78062.58833.12474.19004.91014.7881
H41.08981.76081.76052.16752.51803.06732.78063.12472.58834.19004.91014.7881
C51.52252.16702.16752.16751.08971.08971.51792.16952.16952.53443.52102.8356
H62.15742.49843.06732.51801.08971.74262.13803.05902.51482.75893.78972.7654
H72.15742.49842.51803.06731.08971.74262.13802.51483.05902.75893.78972.7654
C82.51873.46782.78062.78061.51792.13802.13801.09471.09471.50562.20862.4079
H92.77353.77542.58833.12472.16953.05902.51481.09471.74072.10882.48823.0945
H102.77353.77543.12472.58832.16952.51483.05901.09471.74072.10882.48823.0945
C113.87874.69194.19004.19002.53442.75892.75891.50562.10882.10881.10801.2087
H124.72325.62934.91014.91013.52103.78973.78972.20862.48822.48821.10802.0154
O134.34304.94254.78814.78812.83562.76542.76542.40793.09453.09451.20872.0154

picture of Butanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 110.260 C1 C5 H7 110.260
C1 C5 C8 111.870 H2 C1 H3 107.865
H2 C1 H4 107.865 H2 C1 C5 111.095
H3 C1 H4 107.749 H3 C1 C5 111.058
H4 C1 C5 111.058 C5 C8 H9 111.249
C5 C8 H10 111.249 C5 C8 C11 113.901
H6 C5 H7 106.188 H6 C5 C8 109.045
H7 C5 C8 109.045 C8 C11 H12 114.493
C8 C11 O13 124.665 H9 C8 H10 105.322
H9 C8 C11 107.325 H10 C8 C11 107.325
H12 C11 O13 120.842
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability