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All results from a given calculation for CH2CClCH2CH3 (1-Butene, 2-chloro-)

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 CS 1A'
Energy calculated at MP2/CEP-121G*
 hartrees
Energy at 0K-41.365437
Energy at 298.15K-41.372636
HF Energy-40.700883
Nuclear repulsion energy91.569327
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 A' 3307 3151 2.72      
2 A' 3199 3048 0.62      
3 A' 3170 3020 26.27      
4 A' 3077 2932 13.91      
5 A' 3072 2927 22.85      
6 A' 1673 1594 34.39      
7 A' 1546 1473 5.45      
8 A' 1512 1441 6.55      
9 A' 1452 1384 3.01      
10 A' 1434 1366 3.29      
11 A' 1397 1331 8.59      
12 A' 1170 1115 61.42      
13 A' 1092 1040 3.77      
14 A' 1033 984 2.86      
15 A' 889 847 8.92      
16 A' 695 662 24.40      
17 A' 427 407 1.05      
18 A' 363 346 2.41      
19 A' 255 243 0.43      
20 A" 3174 3024 30.76      
21 A" 3126 2978 6.19      
22 A" 1538 1466 9.22      
23 A" 1303 1241 1.21      
24 A" 1130 1076 1.84      
25 A" 807 769 2.18      
26 A" 762 726 58.82      
27 A" 693 661 2.32      
28 A" 404 385 4.06      
29 A" 278 265 0.03      
30 A" 82 78 0.43      

Unscaled Zero Point Vibrational Energy (zpe) 22029.0 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 20989.3 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/CEP-121G*
ABC
0.26529 0.07834 0.06188

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.549 -1.973 0.000
H2 0.082 -2.963 0.000
H3 1.183 -1.898 0.889
H4 1.183 -1.898 -0.889
C5 -0.538 -0.888 0.000
H6 -1.186 -1.000 -0.878
H7 -1.186 -1.000 0.878
C8 1.288 0.920 0.000
H9 2.081 0.180 0.000
C10 0.000 0.526 0.000
Cl11 -1.273 1.752 0.000
H12 1.560 1.970 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 C10 Cl11 H12
C11.09451.09461.09461.53622.17472.17472.98612.64222.55904.14684.0708
H21.09451.77141.77142.16552.49592.49594.06603.72463.49004.90535.1497
H31.09461.77141.77822.18473.08922.53352.95682.43172.84024.48813.9867
H41.09461.77141.77822.18472.53353.08922.95682.43172.84024.48813.9867
C51.53622.16552.18472.18471.09751.09752.56962.82801.51302.74003.5454
H62.17472.49593.08922.53351.09751.75693.25293.58292.12352.89024.1397
H72.17472.49592.53353.08921.09751.75693.25293.58292.12352.89024.1397
C82.98614.06602.95682.95682.56963.25293.25291.08471.34682.69281.0846
H92.64223.72462.43172.43172.82803.58293.58291.08472.10933.70401.8644
C102.55903.49002.84022.84021.51302.12352.12351.34682.10931.76722.1257
Cl114.14684.90534.48814.48812.74002.89022.89022.69283.70401.76722.8418
H124.07085.14973.98673.98673.54544.13974.13971.08461.86442.12572.8418

picture of 1-Butene, 2-chloro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 110.210 C1 C5 H7 110.210
C1 C5 C10 114.120 H2 C1 H3 108.037
H2 C1 H4 108.037 H2 C1 C5 109.661
H3 C1 H4 108.639 H3 C1 C5 111.180
H4 C1 C5 111.180 C5 C10 C8 127.837
C5 C10 Cl11 113.072 H6 C5 H7 106.347
H6 C5 C10 107.812 H7 C5 C10 107.812
C8 C10 Cl11 119.091 H9 C8 C10 119.954
H9 C8 H12 118.503 C10 C8 H12 121.543
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability