Quadruple bond Quadruple bond A quadruple bond is a type of chemical bond between two atoms involving eight electrons. This bond is an extension of the more familiar types double bonds and triple bonds. Stable quadruple bonds are most common among the transition metals in the middle of the d-block, such as rhenium, tungsten, molybdenum and chromium. Typically the ligands that support quadruple bonds are π-donors, not π-acceptors. Chromium(II) acetate, Cr("μ"-OCCH)(HO), was the first chemical compound containing a quadruple bond to be synthesized. It was described in 1844 by E. Peligot, although its distinctive bonding was not recognized for more than a
MTV Video Music Award for Quadruple Threat of the Year old format in 2008, though, this category did not come back. MTV Video Music Award for Quadruple Threat of the Year The MTV Video Music Award for Quadruple Threat of the Year was introduced in 2007, as the VMAs were revamped that year and a few new categories were introduced to the show. This award was peculiar for the MTV Video Music Awards, though, for (like Best Artist Website in 1999) it did not reward music nor music videos. Instead, the category awarded musical artists who excelled in at least three other areas beside their music career, such as acting,