Synthesis and structure of a nucleoside with pi-conjugated nitroxide spin label forming a one-dimensional ferromagnetic chain.
Spin labeled 2'-deoxyuridine, in which a significant fraction of the spin density is delocalized from a nitroxide radical to the DNA base residue, was prepared as a crystalline solid, stable at ambient conditions. The crystal packing, which includes multiple hydrogen bonds, leads to one-dimensional chains of molecules with predominant intrachain ferromagnetic coupling and weaker interchain antiferromagnetic coupling.
Das
Kausik
K
Department of Chemistry, University of Nebraska, Lincoln, Nebraska 68588-0304, USA.
Pink
Maren
M
Rajca
Suchada
S
Rajca
Andrzej
A
D008280:Magnetics; D008958:Models, Molecular; D009589:Nitrogen Oxides / Q000737:chemistry*; D009705:Nucleosides / Q000138:chemical synthesis* / Q000737:chemistry*; D013113:Spin Labels
D009589:Nitrogen Oxides; D009705:Nucleosides; D013113:Spin Labels; C039900:nitroxyl