Search results
Results From The WOW.Com Content Network
into exo and endo ring closures, depending whether the bond broken during the ring closure is inside (endo) or outside (exo) the ring that is being formed into tet , trig and dig geometry of the atom being attacked, depending on whether this electrophilic carbon is tet rahedral ( sp 3 hybridised ), trig onal ( sp 2 hybridised ) or diag onal ...
Community-wide paper, co-produced with the neighborhood specific newspapers, Holley by the Sea News and Navarre Beach News. New Times Broward-Palm Beach: Fort Lauderdale: News Chief: Winter Haven: Gannett Company: News Herald: Panama City: Gannett Company: News-Press: Fort Myers: Gannett Company [11] News-Sun: Sebring: Northwest Florida Daily ...
Al Neuharth of the Gannett corporation started the paper in 1966, and some of the things he did with this newspaper presaged what he would later do at USA Today. [2] In addition to its regular daily publication, Florida Today publishes three weekly community newspapers that are tailored for the North, South, and Central areas within Brevard ...
In thermodynamics, the enthalpy of sublimation, or heat of sublimation, is the heat required to sublimate (change from solid to gas) one mole of a substance at a given combination of temperature and pressure, usually standard temperature and pressure (STP). It is equal to the cohesive energy of the solid.
Although the exo radical is less thermodynamically stable than the endo radical, the more rapid exo cyclization is rationalized by better orbital overlap in the chair-like exo transition state (see below). (1) Substituents that affect the stability of these transition states can have a profound effect on the site selectivity of the reaction.
The sublimation that occurs at the solid-gas boundary (critical sublimation point) (corresponding to boiling in vaporization) may be called rapid sublimation, and the substance sublimes rapidly. The words "gradual" and "rapid" have acquired special meanings in this context and no longer describe the rate of sublimation. [citation needed]
(Reuters) -A pilot and two people on the ground were killed after a small plane crashed into and demolished a mobile home in Clearwater, Florida, the Federal Aviation Administration (FAA) said on ...
The prefix endo is reserved for the isomer with the substituent located closest, or "syn", to the longest bridge. The prefix exo is reserved for the isomer with the substituent located farthest, or "anti", to the longest bridge. Here "longest" and "shortest" refer to the number of atoms that comprise the bridge.