The title compound, C(10)H(14)N(4)O(6), crystallizes with two independent mol-ecules in the asymmetric unit. An extensive network of N-H⋯O and C-H⋯O inter-molecular hydrogen bonds stabilizes the crystal packing. One ethyl group is disordered over two positions; the site occupancy factors are 0.68 and 0.32.

Conspectus This Account focuses on stimuli responsive systems that function in aqueous solution using examples drawn from the work of the Isaacs group using cucurbit[n]uril (CB[n]) molecular containers as key recognition elements. Our entry into the area of stimuli responsive systems began with the preparation of glycoluril derived molecular clips that efficiently distinguish between self and n...

Complexes of the type [Co(pic)(2)(NN)], where pic = picolinate, NN = dipyrido[3,2-d:2',3'-f]quinoxaline (dpq) (4) and 4b,5,7,7a-tetrahydro-4b,7a-epiminomethanoimino-6H-imidazo[4,5-f][1,10]-phenanthroline-6,13-dione (bipyridyl-glycoluril) (bpg) (6) have been synthesized and characterized by elemental analysis, IR, UV-vis, NMR and ESI-MS spectroscopy and thermogravimetic analysis (TGA). Their phy...

Next generation photoresist systems using block copolymer self-assembly have been developed and characterized within the Ober Research Group. Block copolymers containing methacrylate polymer backbones have been designed for low absorption in 193 nm lithography. The polymers synthesized are composed of two polymer chains that can be selectively crosslinked or removed, respectively, from the poly...

Iodination of proteins, glycoproteins, and peptides using a solid-phase oxidizing agent, 1,3,4,6-tetrachloro-3 alpha,6 alpha-diphenyl glycoluril (Iodogen). Anal Biochem 117: 136–146, 1981 8. Opresko L, Wiley HS, Wallace RA: Proteins iodinated by the chloramine-T method appear to be degraded at an abnormally rapid rate after endocytosis. Proc Natl Acad Sci USA 77: 1556–1560, 1980 9. NordenAG, La...