IUPAC ’09: Save the symbol!

Remember the latest addition to the periodic table, copernicium, element 112? Well the fall out from the name choice has begun.

The abbreviated symbol that discoverer Sigurd Hofmann chose was Cp. This hasn’t been confirmed by IUPAC yet, and this is the body that has the say in the end, but it seems appropriate that here at the IUPAC congress that the discussion over this shortened symbol should be aired.

The problem is that for many synthetic chemists Cp already means something – it is used as a shorthand form for the cyclopentadienyl ring, a 5 carbon and 5 hydrogen ring that is aromatic like benzene and often used as a ligand.

So some chemists are inevitably unhappy about the use of Cp for another purpose. One of these is Paul Chirik from Cornell University who in his talk about main group chemistry apparently said he wanted to start a campaign to have the abbreviation Kp, not Cp used for element 112. This, apparently is etymologically correct, because Copernicus was actually Polish and his name was spelled Mikolaj Koppernigk.

Chirik assures me he said this in jest and is by no means an expert in this area. But I wholeheartedly encourage this kind of campaign! Come on chemists, stand up for the rights of cyclopentadienyl ligands! Kp vs Cp – what do you think?

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IUPAC ’09: Save the symbol!

Remember the latest addition to the periodic table, copernicium, element 112? Well the fall out from the name choice has begun.

The abbreviated symbol that discoverer Sigurd Hofmann chose was Cp. This hasn’t been confirmed by IUPAC yet, and this is the body that has the say in the end, but it seems appropriate that here at the IUPAC congress that the discussion over this shortened symbol should be aired.

The problem is that for many synthetic chemists Cp already means something – it is used as a shorthand form for the cyclopentadienyl ring, a 5 carbon and 5 hydrogen ring that is aromatic like benzene and often used as a ligand.

So some chemists are inevitably unhappy about the use of Cp for another purpose. One of these is Paul Chirik from Cornell University who in his talk about main group chemistry apparently said he wanted to start a campaign to have the abbreviation Kp, not Cp used for element 112. This, apparently is etymologically correct, because Copernicus was actually Polish and his name was spelled Mikolaj Koppernigk.

Chirik assures me he said this in jest and is by no means an expert in this area. But I wholeheartedly encourage this kind of campaign! Come on chemists, stand up for the rights of cyclopentadienyl ligands! Kp vs Cp – what do you think?

Leave a Reply

Your email address will not be published. Required fields are marked *

IUPAC ’09: Save the symbol!

Remember the latest addition to the periodic table, copernicium, element 112? Well the fall out from the name choice has begun.

The abbreviated symbol that discoverer Sigurd Hofmann chose was Cp. This hasn’t been confirmed by IUPAC yet, and this is the body that has the say in the end, but it seems appropriate that here at the IUPAC congress that the discussion over this shortened symbol should be aired.

The problem is that for many synthetic chemists Cp already means something – it is used as a shorthand form for the cyclopentadienyl ring, a 5 carbon and 5 hydrogen ring that is aromatic like benzene and often used as a ligand.

So some chemists are inevitably unhappy about the use of Cp for another purpose. One of these is Paul Chirik from Cornell University who in his talk about main group chemistry apparently said he wanted to start a campaign to have the abbreviation Kp, not Cp used for element 112. This, apparently is etymologically correct, because Copernicus was actually Polish and his name was spelled Mikolaj Koppernigk.

Chirik assures me he said this in jest and is by no means an expert in this area. But I wholeheartedly encourage this kind of campaign! Come on chemists, stand up for the rights of cyclopentadienyl ligands! Kp vs Cp – what do you think?

Leave a Reply

Your email address will not be published. Required fields are marked *

IUPAC ’09: Mapping methanol in space

Who’d have thunk it – a chemistry conference full of space news. It’s not that weird really, when you consider that the search for life = search for molecules.

Lars Kristensen from Leiden University in the Netherlands today showed us his maps of methanol in space. He is making these maps so he can see how methanol is distributed in the material that young stars are made from. Methanol is used as a tracer for early star formation and forms on the surface of interstellar ice-covered dust grains. He’ll also soon be able to compare his methanol maps with results of water abundance from Herschel, which set off recently to check out the most distant objects in the universe.

Methanol forms as ice on dust grains. According to Kristensen, the major way that the methanol escapes from the surface of these grains is not by heating thermally, but by a non-thermal mechanism, be that activation by UV light, or other methods.

The abundance of methanol in the areas that Kristensen looked at, using the Harp B instrument on the James Clerk Maxwell Telescope in Hawaii, was constant throughout those areas, he says.

Check below the fold for one of his maps.

(more…)

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