Hi
I am trying to pick a 4D 13C NOESY, when I open the spectra I give it the
experiment type 13C, 13C HSQC-NOESY-HSQC and it automatically prescribes
the ordering of the dimensions and which proton and carbon dimensions are
linked. I have enclosed a snapshot of what I mean. How does the program
know which order the experiment was acquired in? As it happens in this
case it has got the ordering correct. How would I change this ordering if
it had got it wrong?
(As an aside, is there anyway to have an extra column in this table with
axis names (like those added in NMRPipe (i.e. H, C, H1, C1)). I know you
cant change the isotope column as this is hard wired but it would make the
table much easier to understand if the 2 proton and 2 carbon were
differentiated.)
However, my main question relates to how ShiftMatchDist.Constraint
utilises the experiment type information. When I try and run
ShiftMatchDist.Constraint it correctly picks the proton and carbon in one
plane and shift matches them to the proton in the other plane. However, it
does not use the carbon dimension in the other plane. Therefore from one
peak in the first HSQC plane I get Constraints to every peak in the second
HSQC plane that has the proton shift. It should only give constraints for
peaks that have the carbon and nitrogen in the other plane (3rd and 4th
dimension).
Do I need to define something else for it to include the carbon shifts in
the Shift Matching?
Cheers
Ben
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