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  2. Benzene (data page) - Wikipedia

    en.wikipedia.org/wiki/Benzene_(data_page)

    MSDS for benzene is available at AMOCO. ... Bond energy? Bond length: 1.39 Å C-C [1] Molecular geometry: 120 °C–C–C 120° H–C–C Magnetic susceptibility?

  3. Bond length - Wikipedia

    en.wikipedia.org/wiki/Bond_length

    Shorter than average C–C bond distances are also possible: alkenes and alkynes have bond lengths of respectively 133 and 120 pm due to increased s-character of the sigma bond. In benzene all bonds have the same length: 139 pm. Carbon–carbon single bonds increased s-character is also notable in the central bond of diacetylene (137 pm) and ...

  4. File:Bond lengths of group 15 heterobenzenes and benzene.svg

    en.wikipedia.org/wiki/File:Bond_lengths_of_group...

    English: Bond lengths and angles of benzene and different group 15 heterobenzenes (from left to right: benzene, pyridine, phosphabenzene, arsabenzene, stilbabenzene, and bismabenzene) Date 25 April 2010

  5. Benzene - Wikipedia

    en.wikipedia.org/wiki/Benzene

    The C–C bond lengths are greater than a double bond (135 pm) but shorter than a single bond (147 pm). This intermediate distance is caused by electron delocalization : the electrons for C=C bonding are distributed equally between each of the six carbon atoms.

  6. Ligand bond number - Wikipedia

    en.wikipedia.org/wiki/Ligand_bond_number

    For example, (η 5 –cyclopentadienyl) 2 Cr (ML 4 X 2) and (η 6 –benzene) 2 Cr (ML 6) both have a LBN of 6 as compared to classical coordination numbers of 10 and 12. [3] Well known complexes such as Ferrocene and Uranocene also serve as examples where LBN and coordination number differ.

  7. Carbon–carbon bond - Wikipedia

    en.wikipedia.org/wiki/Carbon–carbon_bond

    Comparison of bond lengths in simple hydrocarbons [5] Molecule Ethane: Ethylene: Acetylene: Formula C 2 H 6: C 2 H 4: C 2 H 2: Class alkane: alkene: alkyne: Structure Hybridisation of carbon sp 3: sp 2: sp C-C bond length 153.5 pm: 133.9 pm: 120.3 pm: Proportion of C-C single bond 100% 87% 78% Structure determination method microwave ...

  8. Resonance (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Resonance_(chemistry)

    The average length of a C–C single bond is 154 pm; that of a C=C double bond is 133 pm. In localized cyclohexatriene, the carbon–carbon bonds should be alternating 154 and 133 pm. Instead, all carbon–carbon bonds in benzene are found to be about 139 pm, a bond length intermediate between single and double bond.

  9. Z-matrix (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Z-matrix_(chemistry)

    In chemistry, the Z-matrix is a way to represent a system built of atoms.A Z-matrix is also known as an internal coordinate representation.It provides a description of each atom in a molecule in terms of its atomic number, bond length, bond angle, and dihedral angle, the so-called internal coordinates, [1] [2] although it is not always the case that a Z-matrix will give information regarding ...