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
Owned-and-operated television stations in the United States as a result). However, Tribune was the only one of the two companies involved in The WB that owned any stations aligned with the network as Time Warner did not own any television stations at the network's launch and would not own one until its 1996 merger with the Turner Broadcasting System, owners of Atlanta superstation WTBS (channel 17, now WPCH-TV; its national feed, TBS, is now a separate basic cable channel). On January 24, 2006, Time Warner and CBS Corporation announced that they would merge The WB with the CBS-owned United Paramount Network to form a new broadcast network