cyclohexatriene造句

• Examples for some systematic names that have trivial origins are benzene ( cyclohexatriene ) or glycerol ( trihydroxypropane ).
• There are several good models of bonding which actually reliably predict that benzene will NOT behave as " cyclohexatriene " would be expected to.
• The advent of metallochemistry has improved the selectivity of the product ratios of the cyclohexatriene derivatives through choice of ligand on the carbenoid catalyst.
• That's two bits of evidence that benzene is something other than " cyclohexatriene " . talk ) 18 : 36, 28 January 2009 ( UTC)
• In a cyclic molecule with three alternating double bonds, cyclohexatriene, the bond length of the single bond would be 1.54 ?and that of the double bond would be 1.34 ?
• Of the two the [ 6, 6 ] bonds are shorter with more double-bond character and therefore a hexagon is often represented as a cyclohexatriene and a pentagon as a pentalene or [ 5 ] radialene.
• This commonly seen model of aromatic rings, namely the idea that benzene was formed from a six-membered carbon ring with alternating single and double bonds ( cyclohexatriene ), was developed by August Kekul?( see History section below ).
• :: The alternating-double-bond model that makes benzene appear to be " cyclohexatriene " is largely an artifact of the diagrams used to draw benzene, or reliance upon models of molecular bonding which fall short of fully explaining the situation.
• These occupy three delocalized ? molecular orbitals ( molecular orbital theory ) or form conjugate ? bonds in two resonance structures that linearly combine ( valence bond theory ), creating a regular hexagon exhibiting a greater stabilization than the hypothetical 1, 3, 5-cyclohexatriene.