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
The Double Hook hook twice the fear." Watson wrote "The Double Hook" between 1952 and 1954 in Calgary, Alberta and revised it during a year spent in Paris. Throughout the 1950s she was unable to find a publisher. "T.S. Eliot at Faber & Faber, C. Day-Lewis at Chatto & Windus, and Rupert Hart-Davis all turned it down." McClelland & Stewart optioned the book in Canada, largely on the strength of a covering letter by Fred Salter of the University of Alberta calling it "the most brilliant piece of fiction ever written in Canada." To decide on publication, though, the company sought the opinion