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 C6H8 ((Z)-hexa-1,3,5-triene)

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-232.623589
Energy at 298.15K-232.630680
HF Energy-231.823194
Nuclear repulsion energy195.170989
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-pVDZ
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 3297 3141 18.17      
2 A1 3226 3072 13.53      
3 A1 3203 3051 14.05      
4 A1 3188 3036 1.26      
5 A1 1705 1624 0.02      
6 A1 1618 1541 0.04      
7 A1 1431 1363 0.42      
8 A1 1335 1271 3.46      
9 A1 1277 1216 0.58      
10 A1 1095 1043 0.63      
11 A1 903 860 0.04      
12 A1 390 371 0.05      
13 A1 166 159 0.07      
14 A2 1024 976 0.00      
15 A2 949 904 0.00      
16 A2 910 867 0.00      
17 A2 714 680 0.00      
18 A2 321 306 0.00      
19 A2 143 137 0.00      
20 B1 1019 971 40.62      
21 B1 911 868 62.18      
22 B1 834 795 5.55      
23 B1 600 571 23.32      
24 B1 99 95 0.25      
25 B2 3297 3140 0.09      
26 B2 3212 3059 0.57      
27 B2 3188 3036 5.17      
28 B2 3181 3030 0.01      
29 B2 1680 1600 4.26      
30 B2 1486 1415 6.94      
31 B2 1377 1312 0.10      
32 B2 1295 1234 1.02      
33 B2 1213 1155 1.82      
34 B2 966 920 2.88      
35 B2 681 649 0.29      
36 B2 346 330 8.07      

Unscaled Zero Point Vibrational Energy (zpe) 26139.6 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 24897.9 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-pVDZ
ABC
0.48795 0.05191 0.04692

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.683 0.768
C2 0.000 -0.683 0.768
C3 0.000 1.549 -0.407
C4 0.000 -1.549 -0.407
C5 0.000 2.903 -0.323
C6 0.000 -2.903 -0.323
H7 0.000 1.194 1.740
H8 0.000 -1.194 1.740
H9 0.000 1.084 -1.400
H10 0.000 -1.084 -1.400
H11 0.000 3.406 0.651
H12 0.000 -3.406 0.651
H13 0.000 3.529 -1.219
H14 0.000 -3.529 -1.219

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.36621.46032.52312.47313.74801.09832.11402.20482.79692.72594.09123.47134.6576
C21.36622.52311.46033.74802.47312.11401.09832.79692.20484.09122.72594.65763.4713
C31.46032.52313.09871.35594.45272.17703.48421.09622.81402.13735.06752.13985.1431
C42.52311.46033.09874.45271.35593.48422.17702.81401.09625.06752.13735.14312.1398
C52.47313.74801.35594.45275.80522.67864.58692.11384.12941.09596.38361.09376.4940
C63.74802.47314.45271.35595.80524.58692.67864.12942.11386.38361.09596.49401.0937
H71.09832.11402.17703.48422.67864.58692.38833.14223.87952.46624.72793.76975.5739
H82.11401.09833.48422.17704.58692.67862.38833.87953.14224.72792.46625.57393.7697
H92.20482.79691.09622.81402.11384.12943.14223.87952.16773.09814.93632.45214.6167
H102.79692.20482.81401.09624.12942.11383.87953.14222.16774.93633.09814.61672.4521
H112.72594.09122.13735.06751.09596.38362.46624.72793.09814.93636.81291.87367.1833
H124.09122.72595.06752.13736.38361.09594.72792.46624.93633.09816.81297.18331.8736
H133.47134.65762.13985.14311.09376.49403.76975.57392.45214.61671.87367.18337.0586
H144.65763.47135.14312.13986.49401.09375.57393.76974.61672.45217.18331.87367.0586

picture of (Z)-hexa-1,3,5-triene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 126.385 C1 C2 H8 117.730
C1 C3 C5 122.802 C1 C3 H9 118.487
C2 C1 C3 126.385 C2 C1 H7 117.730
C2 C4 C6 122.802 C2 C4 H10 118.487
C3 C1 H7 115.886 C3 C5 H11 120.952
C3 C5 H13 121.380 C4 C2 H8 115.886
C4 C6 H12 120.952 C4 C6 H14 121.380
C5 C3 H9 118.711 C6 C4 H10 118.711
H11 C5 H13 117.668 H12 C6 H14 117.668
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability