9-Borafluorene - definition. What is 9-Borafluorene
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9-Borafluorene         
  • Intramolecular Lewis acid-base adduct of a 9-borafluorene.
  • Adducts of 9-borafluorene which all fluoresce at λ=435 nm.
  • Reaction of 9-phenyl-9-borafluorene with the AlCp* tetramer to yield the η<sup>1</sup> 9-borafluorene complex, with boron acting as the acceptor.
  • Synthesis of metal-boryl 9-borafluorene complex with Mn(I) by reaction of 9-chloro-9-borafluorene and NaMn(CO)<sub>4</sub>(PPh<sub>3</sub>).
  • Formation of a reactive borylene intermediate by treatment of  2,6-Mes<sub>2</sub>C<sub>6</sub>H<sub>3</sub>BCl<sub>2</sub> (Mes = 2,4,6-trimethylphenyl) with lithium metal, followed by C–C σ bond insertion to yield the 9-borafluorene.
  • Fluoride sensor whose emission maximum is ~140 nm blue shifted upon fluoride binding. (Ar = 4-(Ph<sub>2</sub>N)-C<sub>6</sub>H<sub>4</sub>, 2-thienyl, 2-bithienyl)
  • Azide, carbene, carbonyl, and [[phosphaalkyne]] insertion reactions for 9-phenyl-9-borafluorene. (Ad = adamantyl)
  • Lewis base (LB) adduct to 9-borafluorene (R = Cl, Br, OTf, Ph).
  • Successful synthesis of an η<sup>5</sup> 9-borafluorene-nickel complex.
  • Oligomerization reactions of 9-H-9-borafluorene following its synthesis by treatment of 9-bromo-9-borafluorene by triethylsilane. The pentamer converts to the dimer under heating.
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  • Thermolysis of dialkyl or diaryl-2-biphenylboranes to yield 9-borafluorene. (R = Et, <sup>n</sup>Pr, <sup>i</sup>Bu, Ph)
  • NHC-stabilized 9-borafluorenium cation that displays thermochromism.
  • Synthetic route to 9-borafluorenes using transmetalation reactions. Successful synthesis of 9-borafluorene derivatives have been performed with M=Mg, Hg, SnR<sub>2</sub>, SiMe<sub>2</sub>.
CLASS OF CHEMICAL COMPOUNDS
User:Jsshi/9-Borafluorene
9-borafluorenes are a class of boron-containing heterocycles consisting of a tricyclic system with a central BC4 ring with two fused arene groups. 9-borafluorenes can be thought of as a borole with two fused arene rings, or as a trigonal planar boron atom with an empty p orbital bridging two biphenyl rings.
999 Plan         
  • Cain supporters with signs celebrating his 9–9–9 plan
TAX REFORM PLAN PROPOSED BY HERMAN CAIN
"9-9-9" plan; 9-9-9 plan; 999 plan; 9–9–9 plan; "9–9–9" plan; 9-9-9 Plan
The 999 Plan was a tax proposal that was a centerpiece of Herman Cain's 2012 campaign for the Republican Party's nomination for president of the United States. It was introduced in August 2011.
AD 9         
YEAR
762 AUC; 9 A.D.; 9 AD; 9 (year); 9 CE; Events in 9; Births in 9; Deaths in 9
AD 9 (IX) was a common year starting on Tuesday of the Julian calendar. In the Roman Empire, it was known as the Year of the Consulship of Sabinus and Camerinus (or, less frequently, 762 Ab urbe condita).