fuming_nitric_acid
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what did Ln stand for?
I have a basic question as what did Ln mean? Was it solvent?
Thanks!
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watson.fawkes
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LN<sub>2</sub> is liquid nitrogen.
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Formatik
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The material you are reading should usually make clear what the acronym stands for. With LN they could be referring to lead nitrate or lithium
niobiate. But I would also think it is liquid nitrogen.
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Nerro
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Lanthanum?
#261501 +(11351)- [X]
the \"bishop\" came to our church today
he was a fucken impostor
never once moved diagonally
courtesy of bash
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jokull
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It would be more helpful if you write the context of such "symbol", i.e. the paragraph within you read it.
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Sauron
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Let's have some context, pls quote what this comes from.
Sic gorgeamus a los subjectatus nunc.
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bfesser
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Natural Logarithm? <em>ln</em>
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chemkid
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Lanthanoids?
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HydroCarbon
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http://en.wikipedia.org/wiki/Ln
As you can see, it can stand for a lot of things. As Sauron said, we need more details.
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fuming_nitric_acid
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Let me examplify:
LnPd => In a Suzuki Cross Coupling
I have found what L alone means he is = Ligand.
But what is Ln?
Thanks!!!
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Klute
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L small N could be mean Pd with n ligands, a general symbole for variosu heterogenous palladium catalysts. If this is from an article discussing
seevral catalyst, it's surely that.
\"You can battle with a demon, you can embrace a demon; what the hell can you do with a fucking spiritual computer?\"
-Alice Parr
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Sauron
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If L is ligand and n a variable for integer then usually n will be both small and italicized as Ln
[Edited on 8-10-2008 by Sauron]
Sic gorgeamus a los subjectatus nunc.
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chemrox
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it seems like we're all speculating because there still isn't enough context information. I'd like to read the sentence and know the cite before
commenting.
"When you let the dumbasses vote you end up with populism followed by autocracy and getting back is a bitch." Plato (sort of)
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Nicodem
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| Quote: | Originally posted by Sauron
If L is ligand and n a variable for integer then usually n will be both small and italicized as Ln
[Edited on 8-10-2008 by Sauron] |
That can not be since n (nonsubscripted) stands for "normal isomer" as in n-butyl, etc. The atomic index is subscripted but is never
italic. For example, Na<sub>2</sub>SO<sub>4</sub> is correct while
Na<sub>2</sub>SO<sub>4</sub> (italic index) would be wrong. One just has to admire the tediousness of IUPAC
in enforcing coherent rules. It makes the life of a chemist difficult but at least possible.
Anyway, yes L stands for ligand in organometalic papers, but Fuming_nitric_acid next time please quote the paragraph. It is ridiculous that you expect
anyone to answer a question about the meaning of an acronym without providing the context.
…there is a human touch of the cultist “believer” in every theorist that he must struggle against as being
unworthy of the scientist. Some of the greatest men of science have publicly repudiated a theory which earlier they hotly defended. In this lies their
scientific temper, not in the scientific defense of the theory. - Weston La Barre (Ghost Dance, 1972)
Read the The ScienceMadness Guidelines!
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S.C. Wack
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Klute is right; and Sauron is right about the italics, I have seen this very thing in ACS journals.
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Nicodem
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You are right about the italic thing. I actually went to check the interpretation of the IUPAC rules about this (On the use of italic and roman fonts for symbols in scientific text) and there is a discrepancy about indexes when a variable or a number. They
are always roman (non-italic) when they have a discrete value (like in Na<sub>2</sub>SO<sub>4</sub> but when a variable is used it should be italic (like in
L<sub>n</sub>Pd<sup>0</sup>. L should be roman
since considered a "label". At least this is how I understood the interpretation in the document referred above. I do not understand the logic behind
it, but hey, you can't go against IUPAC!
Edit: On second reading I'm not sure any more. As if this was not enough, checking some random papers showed that every author uses his own style.
Even in ACS journals they use anything from Ln, L<sub>n</sub> to L<sub>n</sub>. I give up. 
[Edited on 8/10/2008 by Nicodem]
…there is a human touch of the cultist “believer” in every theorist that he must struggle against as being
unworthy of the scientist. Some of the greatest men of science have publicly repudiated a theory which earlier they hotly defended. In this lies their
scientific temper, not in the scientific defense of the theory. - Weston La Barre (Ghost Dance, 1972)
Read the The ScienceMadness Guidelines!
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kmno4
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| Quote: | Originally posted by chemkid
Lanthanoids? |
http://en.wikipedia.org/wiki/Lanthanide
In my book (small monography about lanthanides) "Ln" is often used as symbol of any lanthanide (especially in tables, for example: solubility of Ln
sulfates..... , etc).
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