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All results from a given calculation for C6H4 ((Z)-Hexa-1,5-diyne-3-ene)

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-230.145407
Energy at 298.15K-230.146215
HF Energy-229.379927
Nuclear repulsion energy165.757601
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 MP3/6-31G*
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 3531 3314 59.23      
2 A1 3251 3051 10.69      
3 A1 2275 2135 5.59      
4 A1 1712 1607 2.41      
5 A1 1283 1204 0.16      
6 A1 910 854 6.43      
7 A1 608 570 25.93      
8 A1 441 414 3.20      
9 A1 107 101 0.09      
10 A2 936 878 0.00      
11 A2 594 558 0.00      
12 A2 396 372 0.00      
13 A2 205 192 0.00      
14 B1 779 732 17.24      
15 B1 536 503 125.95      
16 B1 309 290 0.22      
17 B2 3531 3314 47.26      
18 B2 3234 3035 1.26      
19 B2 2282 2141 1.52      
20 B2 1459 1369 2.53      
21 B2 1059 994 9.95      
22 B2 738 693 8.40      
23 B2 593 557 62.75      
24 B2 247 232 2.38      

Unscaled Zero Point Vibrational Energy (zpe) 15507.2 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 14555.0 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 MP3/6-31G*
ABC
0.23448 0.08494 0.06235

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.674 1.105
C2 0.000 -0.674 1.105
C3 0.000 1.481 -0.077
C4 0.000 -1.481 -0.077
H5 0.000 1.198 2.057
H6 0.000 -1.198 2.057
C7 0.000 2.199 -1.050
C8 0.000 -2.199 -1.050
H9 0.000 2.811 -1.924
H10 0.000 -2.811 -1.924

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 C7 C8 H9 H10
C11.34801.43182.45841.08672.10032.64013.59153.70664.6170
C21.34802.45841.43182.10031.08673.59152.64014.61703.7066
C31.43182.45842.96262.15303.42571.20873.80682.27514.6723
C42.45841.43182.96263.42572.15303.80681.20874.67232.2751
H51.08672.10032.15303.42572.39663.26404.60384.29475.6495
H62.10031.08673.42572.15302.39664.60383.26405.64954.2947
C72.64013.59151.20873.80683.26404.60384.39841.06655.0857
C83.59152.64013.80681.20874.60383.26404.39845.08571.0665
H93.70664.61702.27514.67234.29475.64951.06655.08575.6218
H104.61703.70664.67232.27515.64954.29475.08571.06655.6218

picture of (Z)-Hexa-1,5-diyne-3-ene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 124.321 C1 C2 H6 118.849
C1 C3 C7 177.884 C2 C1 C3 124.321
C2 C1 H5 118.849 C2 C4 C8 177.884
C3 C1 H5 116.830 C3 C7 H9 178.559
C4 C2 H6 116.830 C4 C8 H10 178.559
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability