In reply to Jed Rothwell's message of Mon, 08 Dec 2008 16:33:37 -0500: Hi, [snip] >"The mass-13 species cannot be a CH molecule >created in the mass spectrometer because when >organic molecules are broken down, products with >M/e range from 5 to 11 are not created.
...but we are looking at 13 here, not 5-11. It should be obvious that if you hit phenanthrene or a derivative hard enough, you can break just about any sized chunk off it. As I pointed out on this list twice already, the CH combination is just about all phenanthrene is made of (10 or the 14 C atoms have a single H attached, and the other 4 have none at all), so it stands to reason that when you forcefully break up the molecule, you are going to get lots of CH radicals. Perhaps the confusion arises because he is expecting a molecule and not considering a radical. >C2H2^2+ >might be a possible candidate, but this cannot >appear as a fragment from decomposed organic >molecules, but only from synthesis." [snip] Regards, Robin van Spaandonk <[EMAIL PROTECTED]>
