Zobrazeno 1 - 10
of 10
pro vyhledávání: '"35"'
Autor:
Robert W. Schurko, Jenna M. Pawlowski, Riqiang Fu, S. Holger Eichhorn, Hiyam Hamaed, Benjamin F. T. Cooper
Publikováno v:
Journal of the American Chemical Society. 130(33)
Solid-state (35)Cl NMR (SSNMR) spectroscopy is shown to be a useful probe of structure and polymorphism in HCl pharmaceuticals, which constitute ca. 50% of known pharmaceutical salts. Chlorine NMR spectra, single-crystal and powder X-ray diffraction
Publikováno v:
J Am Chem Soc
We report an air-stable diradical dication of chiral D(2)-symmetric conjoined bis[5]diazahelicene with unprecedented high spin (triplet) ground state, singlet triplet energy gap, ΔE(ST) = 0.3 kcal mol(−1). The diradical dication possesses closed-s
Autor:
Brandon Q. Mercado, Scott J. Miller, Nadia C. Abascal, Eric K. Paulson, Anthony J. Metrano, Anna E. Hurtley
Publikováno v:
Journal of the American Chemical Society
X-ray crystallography has been applied to the structural analysis of a series of tetrapeptides that were previously assessed for catalytic activity in an atroposelective bromination reaction. Common to the series is a central Pro-Xaa sequence, where
Autor:
Ariella Oppenheim, Adam Zlotnick, Stanislav Kler, Uri Raviv, Daniel Harries, Chenglei Li, Avi Ginsburg, Roi Asor
Publikováno v:
Journal of the American Chemical Society. 134:8823-8830
Remarkably, uniform virus-like particles self-assemble in a process that appears to follow a rapid kinetic mechanism. The mechanisms by which spherical viruses assemble from hundreds of capsid proteins around nucleic acid, however, are yet unresolved
Publikováno v:
Journal of the American Chemical Society, Vol. 132, No 35 (2010) pp. 12397-12403
Recent studies of organouranium chemistry have provided unusual pairs of similar polymetallic molecules containing (N)(3-) and (O)(2-) ligands, namely [(C(5)Me(5))U(mu-I)(2)](3)(mu(3)-N), 1, and [(C(5)Me(5))U(mu-I)(2)](3)(mu(3)-O), 2, and chair and b
Publikováno v:
Journal of the American Chemical Society. 136(52)
We have developed a new synthetic protocol for the preparation of a microcrystalline powder (median size: X50 = 25 μm) of networked M6L4 cages 1a for the stationary phase of an affinity column on a greater than 50 g scale. Analogously to large singl
Publikováno v:
Journal of the American Chemical Society. 135(30)
The ultrafast dynamics in the interior of planar aligned multibilayers of 1,2-dilauroyl-sn-glycero-3-phosphocholine (dilauroylphosphatidylcholine, DLPC) are investigated using 2D IR vibrational echo spectroscopy. The nonpolar and water insoluble vibr
Autor:
Hiroshi Tsukube, Hiroshi Endo, Yasumasa Kanekiyo, Ken Okamoto, Jonathan P. Hill, Miki Matsukura, Satoshi Shinoda, Yasumasa Suzuki, Taizo Mori, Katsuhiko Ariga
Publikováno v:
Journal of the American Chemical Society. 132(37)
Construction of enzyme-like artificial cavities is a complex and challenging subject. Rather than synthesizing complicated host molecules, we have proposed mechanical adaptation of relatively simple hosts within dynamic media to determine the optimum
Publikováno v:
Journal of the American Chemical Society. 127(23)
FosA is a manganese metalloglutathione transferase that confers resistance to the broad-spectrum antibiotic fosfomycin, which contains a phosphonate group. The active site of this enzyme consists of a high-spin Mn(2+) ion coordinated by endogenous li
Autor:
Allen M. Orville, Jeffrey M. Zaleski, Edward I. Solomon, Mindy I. Davis, Frank Neese, John D. Lipscomb
Publikováno v:
Journal of the American Chemical Society. 124(4)
The geometric and electronic structure of the high-spin ferric active site of protocatechuate 3,4-dioxygenase (3,4-PCD) has been examined by absorption (Abs), circular dichroism (CD), magnetic CD (MCD), and variable-temperature-variable-field (VTVH)