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 CH2FCH2CH3 (1-Fluoropropane)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS trans 1A'
1 2 yes C1 gauche 1A

Conformer 1 (CS trans)

Jump to S1C2
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-216.320285
Energy at 298.15K-216.328192
HF Energy-215.928203
Nuclear repulsion energy126.490643
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' 3166 3012 22.45      
2 A' 3111 2960 22.11      
3 A' 3088 2938 30.73      
4 A' 3084 2934 9.82      
5 A' 1630 1551 0.76      
6 A' 1607 1528 5.76      
7 A' 1596 1518 2.13      
8 A' 1505 1431 16.44      
9 A' 1486 1413 4.65      
10 A' 1397 1329 0.32      
11 A' 1171 1114 0.73      
12 A' 1082 1029 44.82      
13 A' 1028 978 2.47      
14 A' 914 869 11.76      
15 A' 443 421 4.71      
16 A' 261 248 4.67      
17 A" 3169 3015 61.41      
18 A" 3145 2992 0.00      
19 A" 3128 2975 22.79      
20 A" 1606 1528 8.58      
21 A" 1390 1323 0.71      
22 A" 1331 1266 0.01      
23 A" 1243 1182 0.75      
24 A" 956 910 2.29      
25 A" 805 766 2.46      
26 A" 247 235 0.00      
27 A" 144 137 3.47      

Unscaled Zero Point Vibrational Energy (zpe) 21866.2 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 20801.3 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
0.88851 0.12186 0.11407

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.112 -0.792 0.000
C2 0.000 0.735 0.000
C3 -1.481 1.184 0.000
F4 1.496 -1.164 0.000
H5 -0.369 -1.209 0.890
H6 -0.369 -1.209 -0.890
H7 0.517 1.123 -0.884
H8 0.517 1.123 0.884
H9 -1.553 2.276 0.000
H10 -1.998 0.805 -0.889
H11 -1.998 0.805 0.889

Atom - Atom Distances (Å)
  C1 C2 C3 F4 H5 H6 H7 H8 H9 H10 H11
C11.53142.53821.43281.09511.09512.14712.14713.49042.79212.7921
C21.53141.54722.41812.17052.17051.09491.09492.18732.18802.1880
C32.53821.54723.79162.78492.78492.18522.18521.09401.09581.0958
F41.43282.41813.79162.06752.06752.64042.64044.59684.10854.1085
H51.09512.17052.78492.06751.78093.06142.49443.78663.14292.5909
H61.09512.17052.78492.06751.78092.49443.06143.78662.59093.1429
H72.14711.09492.18522.64043.06142.49441.76872.52882.53463.0932
H82.14711.09492.18522.64042.49443.06141.76872.52883.09322.5346
H93.49042.18731.09404.59683.78663.78662.52882.52881.77461.7746
H102.79212.18801.09584.10853.14292.59092.53463.09321.77461.7773
H112.79212.18801.09584.10852.59093.14293.09322.53461.77461.7773

picture of 1-Fluoropropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 111.066 C1 C2 H7 108.541
C1 C2 H8 108.541 C2 C1 F4 109.282
C2 C1 H5 110.355 C2 C1 H6 110.355
C2 C3 H9 110.640 C2 C3 H10 110.597
C2 C3 H11 110.597 C3 C2 H7 110.426
C3 C2 H8 110.426 F4 C1 H5 109.008
F4 C1 H6 109.008 H5 C1 H6 108.804
H7 C2 H8 107.747 H9 C3 H10 108.270
H9 C3 H11 108.270 H10 C3 H11 108.383
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1 gauche)

Jump to S1C1
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-216.321398
Energy at 298.15K 
HF Energy-215.928978
Nuclear repulsion energy129.646604
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 3192 3036 14.66      
2 A 3166 3012 43.72      
3 A 3149 2996 19.64      
4 A 3138 2985 30.65      
5 A 3103 2952 10.74      
6 A 3093 2943 13.05      
7 A 3092 2941 37.29      
8 A 1625 1546 0.94      
9 A 1617 1538 6.42      
10 A 1599 1521 7.20      
11 A 1581 1504 2.78      
12 A 1498 1425 9.58      
13 A 1477 1405 10.00      
14 A 1446 1376 0.42      
15 A 1366 1300 0.53      
16 A 1318 1254 0.38      
17 A 1228 1168 1.19      
18 A 1163 1107 7.74      
19 A 1087 1034 22.54      
20 A 1015 965 21.15      
21 A 970 922 7.16      
22 A 876 834 3.62      
23 A 806 767 1.29      
24 A 490 466 2.49      
25 A 318 303 2.13      
26 A 252 239 3.60      
27 A 160 152 3.05      

Unscaled Zero Point Vibrational Energy (zpe) 21911.3 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 20844.2 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 MP2/3-21G*
ABC
0.44702 0.17822 0.14498

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)
C1 0.806 0.556 0.283
C2 -0.614 0.700 -0.276
C3 -1.477 -0.520 0.124
F4 1.346 -0.697 -0.167
H5 1.456 1.365 -0.063
H6 0.786 0.553 1.378
H7 -0.556 0.766 -1.368
H8 -1.050 1.633 0.098
H9 -2.458 -0.490 -0.360
H10 -0.950 -1.427 -0.180
H11 -1.623 -0.547 1.210

Atom - Atom Distances (Å)
  C1 C2 C3 F4 H5 H6 H7 H8 H9 H10 H11
C11.53302.52881.43701.09441.09482.15022.15353.48672.68822.8237
C21.53301.54732.40982.18542.17191.09541.09562.19582.15562.1870
C32.52881.54732.84363.49222.80052.17532.19541.09401.09241.0958
F41.43702.40982.84362.06772.06472.68333.35273.81412.40863.2756
H51.09442.18543.49222.06771.78462.47192.52604.34173.68743.8418
H61.09482.17192.80052.06471.78463.06332.48463.82443.05882.6530
H72.15021.09542.17532.68332.47193.06331.77372.49262.52553.0842
H82.15351.09562.19543.35272.52602.48461.77372.58823.07432.5140
H93.48672.19581.09403.81414.34173.82442.49262.58821.78481.7793
H102.68822.15561.09242.40863.68743.05882.52553.07431.78481.7769
H112.82372.18701.09583.27563.84182.65303.08422.51401.77931.7769

picture of 1-Fluoropropane state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 110.358 C1 C2 H7 108.637
C1 C2 H8 108.888 C2 C1 F4 108.423
C2 C1 H5 111.471 C2 C1 H6 110.371
C2 C3 H9 111.314 C2 C3 H10 108.256
C2 C3 H11 110.505 C3 C2 H7 109.608
C3 C2 H8 111.185 F4 C1 H5 108.783
F4 C1 H6 108.521 H5 C1 H6 109.208
H7 C2 H8 108.098 H9 C3 H10 109.438
H9 C3 H11 108.689 H10 C3 H11 108.593
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability