Re: CCL:Dimers of furan, pyrrole and thiophene..

["Dr. Gadres" <gadres (+ at +) pn2.vsnl.net.in>]

Dear All : Here is the only answer I received to the query on dimers of
 furan,
 pyrrole and thiophene posted on my behalf.............Shridhar Gadre
 > >         Dear Sirs :
 > >         It is well-known that benzene dimer has two possible
 geometries.
 > >         One of these is T-shaped where one benzene molecule is
 > > perpendicular to the othe   other one. The other is the so-called
 shifted
 > parallel > one. Is there something known about the dimers of thiophene,
 > furan
 > > and pyrrole molecules? Any references will be greatly appreciated.
 > > Thanks in anticipation!.........................students of Professor
 > Gadre
 > Jeremy Greenwood wrote:
 > I recently had a look at a letter in JACS
 > (from the web, not out in print yet,10.1021/ja003256d)
 > Sonya L McKay, Brandy Haptonstall and Samuel H Gellman
 > Beyond the Hydrophobic Effect: Attractions Involving Heteroaromatic
 > Rings in Aqueous Solution
 > where they use NMR anaylsis to look at the effect of heteroatoms
 > on pi-stacking. Not exactly what you are looking for though.
 >
 > I look forward with interest to a summary of responses to this
 > important question.
 >
 > Best wishes,
 >
 > Jeremy
 > ----------------------------------------------------------------------
 > Jeremy Greenwood                                 jeremy.greenwood (+ at +)
 i.am
 > Department of Medicinal Chemistry                      bh +45 35306117
 > Royal Danish School of Pharmacy                        fx +45 35306040
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