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All results from a given calculation for C3H8 (Propane)

using model chemistry: MP2/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/CEP-121G*
 hartrees
Energy at 0K-21.533281
Energy at 298.15K-21.541675
HF Energy-21.130259
Nuclear repulsion energy49.582955
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-121G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3157 3008 56.19 84.43 0.65 0.79
2 A1 3071 2926 29.76 148.37 0.11 0.19
3 A1 3058 2914 24.34 223.60 0.00 0.00
4 A1 1551 1478 5.98 3.26 0.73 0.84
5 A1 1528 1456 0.02 30.32 0.73 0.85
6 A1 1456 1387 4.17 1.39 0.14 0.25
7 A1 1199 1143 0.88 2.90 0.37 0.54
8 A1 894 852 0.84 12.81 0.21 0.35
9 A1 370 352 0.01 0.39 0.10 0.19
10 A2 3148 3000 0.00 6.98 0.75 0.86
11 A2 1527 1455 0.00 23.99 0.75 0.86
12 A2 1332 1269 0.00 9.27 0.75 0.86
13 A2 915 872 0.00 0.01 0.75 0.86
14 A2 220 210 0.00 0.03 0.75 0.86
15 B1 3159 3010 110.12 26.52 0.75 0.86
16 B1 3118 2971 2.82 159.83 0.75 0.86
17 B1 1547 1474 15.88 0.02 0.75 0.86
18 B1 1240 1181 0.00 0.05 0.75 0.86
19 B1 751 716 2.33 0.29 0.75 0.86
20 B1 287 274 0.00 0.00 0.75 0.86
21 B2 3155 3006 31.31 53.06 0.75 0.86
22 B2 3056 2912 40.22 3.53 0.75 0.86
23 B2 1533 1461 2.64 0.18 0.75 0.86
24 B2 1443 1375 6.59 0.43 0.75 0.86
25 B2 1388 1323 1.65 0.11 0.75 0.86
26 B2 1086 1035 0.57 7.65 0.75 0.86
27 B2 933 889 1.74 0.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 23061.5 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 21973.0 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/CEP-121G*
ABC
0.97153 0.27927 0.24699

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.595
C2 0.000 1.277 -0.263
C3 0.000 -1.277 -0.263
H4 0.881 0.000 1.248
H5 -0.881 0.000 1.248
H6 0.000 2.178 0.360
H7 0.000 -2.178 0.360
H8 0.886 1.311 -0.907
H9 -0.886 1.311 -0.907
H10 -0.886 -1.311 -0.907
H11 0.886 -1.311 -0.907

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.53821.53821.09731.09732.19062.19062.18192.18192.18192.1819
C21.53822.55402.16602.16601.09553.51081.09631.09632.81062.8106
C31.53822.55402.16602.16603.51081.09552.81062.81061.09631.0963
H41.09732.16602.16601.76262.51192.51192.52323.08073.08072.5232
H51.09732.16602.16601.76262.51192.51193.08072.52322.52323.0807
H62.19061.09553.51082.51192.51194.35611.77311.77313.81673.8167
H72.19063.51081.09552.51192.51194.35613.81673.81671.77311.7731
H82.18191.09632.81062.52323.08071.77313.81671.77243.16512.6223
H92.18191.09632.81063.08072.52321.77313.81671.77242.62233.1651
H102.18192.81061.09633.08072.52323.81671.77313.16512.62231.7724
H112.18192.81061.09632.52323.08073.81671.77312.62233.16511.7724

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.452 C1 C2 H8 110.706
C1 C2 H9 110.706 C1 C3 H7 111.452
C1 C3 H10 110.706 C1 C3 H11 110.706
C2 C1 C3 112.238 C2 C1 H4 109.399
C2 C1 H5 109.399 C3 C1 H4 109.399
C3 C1 H5 109.399 H4 C1 H5 106.859
H6 C2 H8 107.985 H6 C2 H9 107.985
H7 C3 H10 107.985 H7 C3 H11 107.985
H8 C2 H9 107.871 H10 C3 H11 107.871
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability