96.1 Star FM
96.1 Star FM (ACMA callsign: 5SEF) is an Australian commercial radio station based in Mount Gambier, South Australia, owned by Southern Cross Austereo. It commenced broadcasting on May 16, 1998. Currently, the only local program broadcast on the station is the Jess and Ryan breakfast show from 6am to 9am Monday to Friday - all other programming is broadcast from Albury or Gold Coast.
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Selenium hexafluoride
Selenium hexafluoride is the inorganic compound with the formula SeF6. It is a colourless gas described as having a "repulsive" odor. It is not widely encountered and has no commercial applications.
Structure, preparation, and reactions
Like many compounds of selenium, SeF6 is hypervalent. The compound has octahedral molecular geometry with Se-F bond length 168.8 pm.
SeF6 can be prepared from the elements or by the reaction of bromine trifluoride (BrF3) with selenium dioxide. The crude product is purified by sublimation.
The relative reactivity of the hexafluorides of S, Se, and Te follows the order TeF6 > SeF6 > SF6, the latter being completely inert toward hydrolysis until high temperatures. SeF6 also resists hydrolysis. The gas can be passed through 10% NaOH or KOH without change, but reacts with gaseous ammonia at 200 °C.
Safety
Although selenium hexafluoride is quite inert and slow to hydrolyze, it is toxic even at low concentrations, especially by longer exposure. In the U.S., OSHA and ACGIH standards for selenium hexafluoride exposure is an upper limit of 0.05 ppm in air averaged over an eight-hour work shift. Additionally, selenium hexafluoride is designated as IDLH chemical with a maximum allowed exposure limit of 2 ppm.
Selenium tetrafluoride
Selenium tetrafluoride (SeF4) is an inorganic compound. It is a colourless liquid that reacts readily with water. It can be used as a fluorinating reagent in organic syntheses (fluorination of alcohols, carboxylic acids or carbonyl compounds) and has advantages over sulfur tetrafluoride in that milder conditions can be employed and it is a liquid rather than a gas.
Synthesis
The first reported synthesis of selenium tetrafluoride was by Paul Lebeau in 1907, who treated selenium with fluorine:
A synthesis involving more easily handled reagents entails the fluorination of selenium dioxide with sulfur tetrafluoride:
An intermediate in this reaction is seleninyl fluoride (SeOF2).
Other methods of preparation include fluorinating elemental selenium with chlorine trifluoride:
Structure and bonding
Selenium in SeF4 has an oxidation state of +4. Its shape in the gaseous phase is similar to that of SF4, having a see-saw shape. VSEPR theory predicts a pseudo-trigonal pyramidal disposition of the five electron pairs around the selenium atom. The axial Se-F bonds are 177 pm with an F-Se-F bond angle of 169.2°. The two other fluorine atoms are attached by shorter bonds (168 pm), with an F-Se-F bond angle of 100.6°. In solution at low concentrations this monomeric structure predominates, but at higher concentrations evidence suggests weak association between SeF4 molecules leading to a distorted octahedral coordination around the selenium atom. In the solid the selenium center also has a distorted octahedral environment.
Zombies!!!
Zombies!!! is a tile-based strategy board game for two to six players. Zombies!!! won the 2001 Origins Award for Best Graphic Presentation of a Board Game, and Zombies!!! 3: Mall Walkers won 2003's Origins Award for Best Board Game Expansion.
Game interest
Zombies!!! is an homage to zombies in fiction, particularly the zombie films of George A. Romero and Sam Raimi. The shambling movement of the zombies as compared to the players and the relative ease with which they are dispatched makes them weak enemies individually, but (as in the films) they are strong in large numbers.
Players must decide whether to avoid combat and allow the other players to dispose of the zombies for them, or to strike out and collect the various items that the board and event cards provide. Once the Helipad tile is placed, the players can choose between racing to the helicopter (which will often result in death); holding back and hoping to rush in when another player dies; or ignoring the helipad entirely and trying to kill 25 zombies.
Zombie
A zombie (Haitian French: zombi, Haitian Creole: zonbi) is a fictional undead being created through the reanimation of a human corpse. Zombies are most commonly found in horror and fantasy genre works. The term comes from Haitian folklore, where a zombie is a dead body reanimated through various methods, most commonly magic. Modern depictions of zombies do not necessarily involve magic but often invoke science fictional methods such as radiation or viruses.
The English word "zombie" is first recorded in 1819, in a history of Brazil by the poet Robert Southey, in the form of "zombi". The Oxford English Dictionary gives the origin of the word as West African, and compares it to the Kongo words nzambi (god) and zumbi (fetish).
One of the first books to expose Western culture to the concept of the voodoo zombie was The Magic Island by W.B. Seabrook in 1929. This is the sensationalized account of a narrator who encounters voodoo cults in Haiti and their resurrected thralls. Time claimed that the book "introduced 'zombi' into U.S. speech".
Zombie (song)
"Zombie" is a protest song by Irish rock band The Cranberries. It was released in September 1994 as the lead single from their second studio album, No Need to Argue (1994). The song was written by the band's lead singer Dolores O'Riordan, and reached No. 1 on the charts in Australia, Belgium, Denmark, and Germany.
It won the "Best Song" award at the 1995 MTV Europe Music Awards.
Production
Zombie was written during the Cranberries' English Tour in 1993, in memory of two boys, Jonathan Ball and Tim Parry, who were killed in an IRA bombing in Warrington.
Reception
The Rough Guide to Rock identified the album No Need to Argue as "more of the same" as the Cranberries' debut album, except for the song "Zombie", which had an "angry grunge" sound and "aggressive" lyrics. The Cranberries played the song on their appearance on the U.S. show Saturday Night Live in 1995 in a performance that British author Dave Thompson calls "one of the most powerful performances that the show has ever seen".
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