Quadruple bond to give a bond order of 2, meaning that there exists a double bond between the two carbons in a dicarbon (C) molecule. The molecular orbital diagram of diatomic carbon would show that there are two pi bonds and no sigma bonds. However, a recent paper by S. Shaik et al. has suggested that a quadruple bond exists in diatomic carbon. 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
Owned-and-operated television stations in the United States fourth-ranked Philadelphia housed CBS-owned WCAU-TV (channel 10) and NBC-owned WRCV-TV (channel 3, now KYW-TV), a station which NBC had acquired two years earlier through a trade with Westinghouse Broadcasting in return for NBC's television and radio stations in Cleveland. The FCC reversed the trade in 1965 and NBC regained control of the Cleveland television station, which is today known as WKYC. Each network owned stations in other markets where the other networks did not: in addition to Cleveland, these were ABC's KGO-TV (channel 7) in San Francisco and WXYZ-TV (channel 7) in Detroit, NBC's WRC-TV (channel 4) in Washington, D.C.,